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5G - Science topic

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What is the most appropriate approach to technology, especially 5G: a co-evolutionary view of technology or an approach to disruptive innovations? How do perspectives intertwine?
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I would consider 5G to be an incremental technology though the gap between 4G and 5G is large. Some believe it disruption. Time alone will say whether 5g technology disrupts the market.
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Hi there,
I am studying the impact of numerology and mini-slots on several proposed algorithms to achieve fairness between 5G NR-U and Wi-Fi networks over unlicensed spectrum bands. However, the coexistence of NR-U and IEEE technology (802.11ad) Wireless Gigabit (WiGig) at 60 GHz bands has been implemented within ns-3 in a 3GPP indoor scenario but there is NO working example for for this coexistence (i.e., I could not compile the code) because the authors have shared the codes, but the users cannot compile it. Can anyone recommend any such codes that I can compile for such scenarios?.
Regards,
Moawiah
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We know that in the Han-Kobayashi region, the to be transmitted data is divided into two parts, private and common. So, what type of information does these parts contain ?
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Thank you Prof. Emil Björnson for the clarification.
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I am currently working on a 5G network simulation using a network simulator. For a given scenario, there are many configurable network parameters such as channel models, scheduler, Bands, transmitter power, bandwidth, numerology, mobility, etc. My goal is to adjust the tunable network parameters to get optimal network performances such as throughput, delay, etc based on the user traffic. Any suggestions on how to proceed and what kind of algorithm to choose will be beneficial.
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I am searching data on temporal variation of power emitted by 4G and 5G antenna. I need this for an EMI-EMC analysis and this may be useful for radioprotection too. Data with a temporal resolution below 6 minutes are needed.
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Dear Yvan, we have collected the real time spectrogram from a 5G BS - see Fig. 21 of this paper https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9521570
Is this information useful to you?
Moreover, it would be good to know which frequencies and bands you are targeting.
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Can you provide generic scenarios of where ML can be applied to improving network performance/security in a simulation context? Also, specific answers pertaining to NetSim and MATLAB would be most helpful.
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There are options for offline and online machine learning as briefly explained in https://support.tetcos.com/a/solutions/articles/14000137146
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I want to simulate and analyze the coverage/rate of 5G low band (n5, 850 MHz), C-Band (n78, 3.5 GHz), and mmWave (n258, 26 GHz) subject to DL/UL interference? How can I do this with NetSim?
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NetSim 5G documentation is available at https://tetcos.com/help/v13.2/Technology-Libraries/5G.html. All these 3 bands are supported in NetSim. Interference is also available.
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Hello, I'm working on a 5G ultra dense network scénario. And I need to know the Channel modelization when used 3.5GHz for the macro cell and 26 GHz for small cell
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I am simulating different 5G scenarios in NetSim which implements the 3GPP 38.900 propagation models. Can someone explain (i) how to create different scenarios (Rural, urban), (ii) LOS/NLOS channels, and (iii) Indoor and outdoor models?
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The documentation is useful, and I had a few more questions on NetSim 3gppchannelmodel.
Fading: Do stationary users also experience fading or is it applied only to mobile users?
Coherence time: (a) It looks to me like this is a global parameter common to all associated UEs to one gNB. Hence cannot vary within a gNB but can be changed across gNBs. Is this correct? (b) Shouldn't coherence time be related to velocity? What is different UEs (attached to a gNB) have different velocities?
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hi
i want to know more about 5G and LTE channel parameters like (path loss, carrier frequence, max transmission power) etc.
thanks
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Ananya Hegde thank you so much, ill check it out
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Hello dear
i have been reading a paper
'A Matching Game Approach for Resource Allocation in Wireless Network Virtualization'
that suggest a scenario which there is BS form infrastructure provider containing 10 subchannel with 180 KHz width, and the BS serve 3 virtual wireless network that contain 5 user and FDMA technology used. So, i wonder about how do subchannel distributed in virtual wireless network?
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Dear Tariq, you mentioned 10 subchannels, shouldn't the number of subchannels be a power of 2? Like 8, 16, 32,.....128,.....etc? I might be wrong so please check it. Regarding your question, do you ask about the subchannels distribution nature? as in terms of Rayleigh or Rician, or you meant allocation?
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Can we simulate an IoT kind of network using the NetSim 5G library? I would also want to model different kinds of attacks and generate data set to train an ML classifier.
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A MAC address is a 48-bit code that identifies a device that connects to a network, such as a local or Internet-based network. This code is divided into six blocks of two hexadecimal characters each; the first three, known as "OUI," correspond to the device manufacturer's identifier, and the last three, also known as "NIC," are the device's serial number or identifier.
  1. Flip your phone's Bluetooth on.
  2. Search for visible devices. (pair new device)
  3. Take a screenshot and share it here.
  4. Write the model of your phone in the caption of the photo.
  • Some Android updates disable this feature on your phone; some new smartphones disable it by default.
Thank you in advance for your contribution to the advancement of the new world's science and technology!!
Example:
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Samsung Galaxy J7 (2016)
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Hello, I am looking for a topic for my Master's thesis in 5G, or SDN, or wireless network communications. It will be really great if I can get some suggestions.
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I believe this article can help you find inspiration. This is a Q1 journal about network communication and network architecture. It proposed an internet of things platform with p2p wireless communication, high speed, and security. It integrated with ION DID (based on blockchain) too. Finally, the source code is available on the GitHub link in this article.
BRs.
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I have a 5G scenario that I have set up in NetSim. There are 5 variables that are of interest and I want to sweep across an array of some 10 values for each. How can I do this elegantly in NetSim? It doesn’t make sense to configure 100 simulations one after the other via the GUI. Also, it would be nice to get the results from all the different simulations into one file. Would like to avoid copying/pasting from 100 different files.
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I have also been working on this utility. My question is: is it possible to run/modify the sweeper to execute directly from MATLAB? Since I am writing some algorithms in MATLAB, I want to avoid interfacing MATLAB, Python, and NetSim. It will be simpler to just have MATLAB interface with NetSim.
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5G technology has a theoretical peak speed of 20 Gbps, while the peak speed of 4G is only 1 Gbps. 5G also promises lower latency, which can improve the performance of business applications as well as other digital experiences (such as online gaming, videoconferencing, and self-driving cars).
While earlier generations of cellular technology (such as 4G LTE) focused on ensuring connectivity, 5G takes connectivity to the next level by delivering connected experiences from the cloud to clients. 5G networks are virtualized and software-driven, and they exploit cloud technologies.
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The best place to find the weaknesses in 5G is to look at the work plan for 3GPP Release 17.
5G is Release 16 (like Software Version 16) of the mobile network. After widespread deployment, some performance issues were discovered and Release 17 will fix that and add some new material The work plan for Release 17 will clearly define what is being done.
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Hi,
I really need some help. I acknowledge all respected researchers here which have done raindrop size distribution studies using t-matrix code written and provided by Mishchenko.
It says the codes were all written using fortran77.
But, to be frank. I have never used Fortran and I am not a programmer. So, for my study, I'm using Matlab. To convert fortran77 to Matlab, I need to convert fortran77 to fortran90 first which I totally have no clue.
So, I would like to ask if any of my Researchgate friends here are willing to share the converted version (in Matlab code) or have any info about this code. All help are highly appreciated.
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I went to the NASA web site and downloaded the first file I came to (tmp.lp.f). While it is indeed F77, converting it to something you might use in a different development environment (MATLAB or Python or C) will be quite a challenge. There are several features used in this code which are peculiar to arcane FORTRAN compilers, operating systems, and processors (REAL*16 and COMPLEX*32 objects and quadruple precision constants, which were available on the IBM 360 mainframe and Alpha workstations that cost more than a Lamborghini). I have dealt with many such problems before and could coach you through the process but it would not be easy. I have attached a sample of the problems you will encounter if you try to compile this code on anything but an exotic Linux machine running Intel FORTRAN (which costs a fortune). I have been using REAL*16, *32, *64, *128, *256 since 1980, but I don't do it in FORTRAN. I use assembler that can be called from FORTRAN or C. I wrote a book on this subject, which happens to be free today https://www.amazon.com/dp/B09T3XR2W3 I don't know if this extended precision is essential for these calculations, but if it is, this will be a tall mountain to climb.
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I am working on 5G network simulations using a network simulator currently. I am running simulations on a system with good hardware configuration. However, simulations are taking a long time to complete. I want to make simulations faster. Any suggestions will be very helpful.
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General guidelines:
1. Run simulations in high capacity systems
2. Turn off all logs/traces
3. Turn off animation
Beyond this you may need to do tool specific optimization.
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Are the simulation results giving a good impact on real-time problem-solving?
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It depends a lot on what aspects of the networks that you want to simulate. The big simulators that the industry are using have very high complexity.
A new open-source initiative that might be of interest to you is Sionna: https://nvlabs.github.io/sionna/
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I am trying to maximize the throughput of a 5G network scenario. What should be the CA settings and DL:UL ratio for achieving Max rate?
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Upto 128 antennas in the gNB and 16 antennas in the UE. So maximum of 16 layers.
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I'm planning on making a 4x4 Wireless antenna @ 3.5GHz. What should be the ideal return loss and VSWR values??
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Hmmm. I guess I read that as "loss," rather than "return loss." Loss along the transmission line.
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Dear researchgate freiends,
I'm doing research for my PhD study regarding rain attenuation for mm-wave based on raindrop size distribution (DSD) in tropical country. Main focus is for terrestrial link and with path length less than 1km. I will considered canting angle as well. Do you think there is any other way to make this research more interesting?
and do you have any suggestions any research that use canting angle as one of the parameter considered in the rain DSD measurement. I found some but it is very few. Maybe some of my friends here have any information that I do not know.
Tq in advance
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thank you Mustafa Sadiq Aljumaily . Really appreciate it @
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How to collect data from assets, production lines, remote devices under the industry 4.0 context? May be it's about automation, SCADA, PLC, OPC UA, and even IoT, Edge, 5G. Where could I find something useful to have a overall view?
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Although most current research works in Industry 4.0 focus on improving adaptability, resiliency, scalability, and security of physical facilities through feedback loops with embedded sensors, processors, and actuators that are controlled and monitored by computers, there is an increasing interests and works on how to make factories more efficient and productive based on collected data, where data analytics play a very important role (Hunter et al., 2013; Kabugo et al., 2020; Tang et al., 2010). For example, with the tremendous monitoring data during the manufacturing process in Industry 4.0, it can be utilized to diagnose potential machine failures and optimize maintenance operations (Bagheri et al., 2011). Besides improving manufacturing processes, data analytics can also be used to improve the entire business cycle, including gathering natural resources, producing components, assembling products, delivering products to customers, and managing customer relationships (Xu, 2007). For example, whenever unexpected events occur, such as a shipment delay due to the Suez Canal blockage, connected supply chain systems in Industry 4.0 can proactively adjust manufacturing and delivery plans. Ultimately, the network of these collaborating facilities through cyber-physical systems together with dynamic smart decisions through data analytics will unleash the full power of Industry 4.0.
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There are two coaxial cable installed in this filter model, the required bandwidth is 200MHz I have only managed to obtain aprox. 290MHz and the Frequency should between 3.4-3.6GHz if not exact as close as possible. Can anyone help me with this please ?
Note: only the ticked boxes positions can be changed. Rest should remain the same.
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I think you may need to narrow the gap between the two parts.
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Dear researchers;
I am looking for a simulator that gives me the ability to generate a heterogeneous wireless network environment composed of radio access technologies, such as 3G, 4G, 5G, Wifi, etc.
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You can use NS3 or Atoll
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dear sirs
what is the main difference between the 4G-LTE and the 5G -LTE , and how we can implement the LTE concept in the 5G new radio?
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4G is the branding name for LTE, while 5G is the branding name for NR. Hence, I would say that there is no such thing as implementing 4G/LTE in 5G/NR.
However, the 5G standard builds heavily on 4G standard, to the extent that it can sometimes be deployed as a software upgrade of a 4G base station and where a 4G core network can be used. But it is not backward compatible in the sense that a 4G device cannot connect to a 5G base station.
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In order to introduce new services on wireless/ mobile devices providing higher data rates, there is a need for installation of latest commercial wireless networks (such as 4G and 5G systems, particularly the latter). However, these 4G and 5G systems need much more wider frequency bands for operation compared to their predecessors. The increasing pressure to introduce newer services is forcing a phasing out of older technologies so that more spectrum may be freed. While 1G services were stopped long back, most of the countries now have either already shut down 2G services or they are in the process of doing so. In the same context, I think it is now expected that operators in some countries may be actively considering the possibility of shutting down 3G services also. Is there already a hint of a possible trend being pursued by network operators for switching off the 3G services?
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In Sweden, the 3G networks will also be closed down in the coming years. Actually, before 2G is closed down since there are many small devices (terminals for payment, electricity meters, etc) that require 2G. But also 2G is on the roadmap to be closed down.
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This reference [1] says that "The maximum EIRP is regulated to be 43 dBm for mobile stations (MSs) by the FCC" which means about 20 watt. But normal simulators are usually using less than 10 watt transmission power for UE, so is there a common range for the EIRP for experimental use?
[1] Huo, Yiming, Xiaodai Dong, and Wei Xu. "5G cellular user equipment: From theory to practical hardware design." IEEE Access 5 (2017): 13992-14010.
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The question was for 5G at the time as I was just beginning to explore this field.
Thanks for your interest.
Best regards
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What is the formula by which to calculate the PHY rate of a 5G network? Is there some formula for example based on the bandwidth, modulation etc.
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hi
i'm working on a project about SDN energy saving on 5G networks
so i'm looking for the best simulator that i can use
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  • Ns3.
  • OMNET.
  • OPNET.
  • Qualnet.
  • NETSIM.
  • TOSSIM.
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hi
is there an ability to connect the simu5G with open-flow on omnet++ ?
to be able to create a 5G network controlled by the SDN controller
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Use of dual band class f power amplifier for 5 G network
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You can do it using one of the methods
1) Use of orthogonal mode
2) Use of multiple patches
3) Use of reactive loading
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5G is expected to be the fastest-deployed mobile communication technology in history. It is forecast to cover about 75 percent of the world’s population by 2027 (Ericsson Mobility Report, 2020).
Not only will the deployment be rapid, but the impact of 5G will be transformative. It is expected to add over $13 trillion in global economic value by 2035 and create more than 22 million jobs in the 5G global value chain alone (World Economic Forum, 2020).
Although the roll out of 5G has already started in many countries, in most countries the deployment has not yet started. The logistics and supply chain challenges of building and installing a 5G network are already identified as major challenges, and thus, the PARC Institute has initiated a research project to better understand the challenges. The research is focused on Brazil, as the 5G rollout is scheduled to launch mid-2022 (RCR Wireless, 2021) and thus the time is right to understand the challenges, and help businesses and industries deploy this exciting new technology.
Online survey
If you would like to take part in the research and share your views, you can complete the survey online.
Alternatively, you can copy the following URL into your browser:
For more information, please contact the lead researcher, Congyang Liu, at LiuC78@cardiff.ac.uk
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In the article "On the Ultra-Reliable and Low-Latency Communications in Flexible TDD/FDD 5G Networks", I am wondering how does the simulation results come out, is the latency calculated through the frame and slot you distributed or measured by actual scene?
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Hi
Make your question clearer.
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For Intensity modulation, I am using external modulation. I want to simulate mach-zehnder modulator based intensity modulation. Please suggest simulation in MATLAB
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If you found something more about MZ coding. Please inform.
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As per recent media reports and apprehensions from airlines, the 5G services in the vicinity of airports might affect the landing and navigation of flights, especially due to C-band of 5G which is very close to altimeter frequency of RADAR. One of such media reports can be seen at: https://www.reuters.com/technology/exclusive-major-us-airline-ceos-urge-action-avoid-catastrophic-5g-flight-2022-01-17/
Does this apprehension stand valid?
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Since 5G spectrum is very near to aviation RF communications and slight deviation of antenna toward up may affect large height with strong RF signals. Coverage distance on Earth surface may be limited due to curvature and air but towards sky these RF waves could travel thousands of KM.
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Hello all dear researchers,
I want to obtain a comprehensive study on the antennas of smart devices and wearable antenna, so I ask you for some recommendations with a clear and sober set of research and
thank you to all
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There are many papers regarding the Microstrip patch antenna. All you need is a search for it.
My regards
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I have an antenna module which is a planar phased array for 5G NR FR2 base station (i.e., BS type 2-O). I need to perform over-the-air (OTA) radiated conformance testing to verify the performance of antenna module to obey specification of 3GPP. Hence, I study the attached file 3GPP TS 38.141-2 V16.10.0.
For transmitter test (chapter 6), the module is connected with a signal generator (SG), which make NR signals generated by SG are emitted through antenna module. And then, a feed antenna is regarded as receiving end and connected with a signal analyzer (SA) and spectrum for analysing received signal. On the other hand, for receiver test (chapter 7), exchange the placements by module and probe antenna to perform conformance testing. The complete transmission and received process run in a CATR or anechoic chamber.
  • How to set parameters (ex. total output power, modulation, operation band, bandwidth, frame structure, single or multi-carrier, subcarrier spacing, TDD or FDD, and so on) of measuring equipment (SG and SA) for radiated conformance testing according to TS 38.141-2? Would you mind take an simple demonstration for test items in section 6.2 and 7.3?
In my opinion, the section 4.7.2, 4.9.2 and Annex A is strongly relate to the setup. (I am confused about difference between intention of test configurations and test model respectively in section 4.7.2 and 4.9.2. I googled other materials (others attached file) about this issue, there is only description about Test Model NR-FR2-TM in test procedure rather than Test Configurations NRTC )
I have some base of communication system but I am short of practical experience of RF measurement, so this problem maybe is not an easy question to answer. If you cannot answer by a few words, please provide clues or direction of search.
Many thanks for your answer.
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Ryan Kao Based on your attachments I assume you are procuring R&S instruments. If you look at section 2.4 in both the attachments, it lists the devices and options required to conduct the tests. [This is just one example from the documents.] Typically, such capablities are licensed software options that must be purchased with the instrument (or even a later purchase of license can enable the feature!).
It will be best to go through the instrument documents, which are quite tedious to navigate through; you may save some time by reaching out to the vendor application engineer (AE) who might be interacting with your department/ institute. Understanding the test environment system is key to correct test execution and measurement.
If you need some insight into RF measurements in general, you may want to check out my book "RF & μWave Measurements: For Design, Verification and Quality Control", which is available at select amazon marketplaces. However, it does not address your 3GPP specific question.
/rgds
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im trying to find the best simulator for 5G SDN networks
im trying to work with omnet++ but i find its kinda difficult, is there any tutorial of something i can learn from
dose the NS-3 also difficult ?
any suggestion for a simple powerful simulator ?
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Tou may read this:
NetSim V11 now has Software Defined Network (SDN) simulations with SDN Controller and Open flow compatibility module.
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I need to do a system-level simulation of a 5G network where I can define parameters like location/mobility of UEs, channel models for pathloss/shadowing/fading, handover parameters such as time to trigger, handover offset, and also get measurements such as RXRP, SINR etc and also metrics like throughput, latency, error, etc.
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This is quite simple. You can open the home screen and navigate to 5G. In the 5G design window just drop a gNB, a UE, core devices, and a server. Connect the gNB to the core using links. Then configure an application from the remote server to the UE.
To modify the antenna settings right click on the gNB (and the UE) and you can modify the number of Tx/Rx antennas in the PHY layer.
You can refer following links for more details:-
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I want to parse signals coming from 4G/5G towers to extract only the ID of the tower and the transmission time (on simplex communication: only downlink). Are these packets (or frames) sent on a regular time interval ?
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You can down load the several software like net monitor in your mobile and you can check the network health ' data rate (TX and rx) tower id, RSSI ' signal to noise ratio etc in stationary as well as in state of mobility .G-net is also useful for primary investigation respective to the different channel ( BCCH' TCH ETC).
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I am trying to find resources where I can study the comparison of the various features of the Random access channel in LTE using simulated and real-world measurement data. It would be great if you can help me to find any resource on that.
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Hi,
you can try OpenAir Interface https://openairinterface.org/ and the associated code for 4G/5G deployment and test:
regards,
Vincent
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I can't find a direct relationship or equation between antenna gain and bandwidth in the literature. Is there a relationship? In my simulations, I do observe that as the bandwidth of the antenna increases, gain in general decreases. Could someone explain the relationship between the two physically? Thanks.
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welcome!
The gain of the antenna by definition is the directional gain multiplied by the electrical efficiency. The directivity gain is = 4pi/ radiation angle of the antenna.
The electrical efficeincy is = Po/ Pi where po is the radiated power amd Pi is the input power.
Assuming the radiation resistance of the antenna =Rr and its loss resistance Rloss
Then Po= Vi^2/ Rr
Pi= Vi^2/ Rr in parallel with the Rloss
So, as you you see as Rloss decreases the electrical efficiency decreases.
On the other side considering resonant antenna with quality factor Q, then
Rloss = f0/BW where fo is the resonance frequency of the antenna and BW its 3 dB bandwidth.
As the bandwidth increases the losses of the antenna increases reducing its gain.
Best wishes.
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Can anyone please tell me.. what should be the gain, bandwidth, radiation pattern, polarization for 5G antennas of different bands like sub 6 GHz, above or near 26 GHz.
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welcome!
The antennas required may be either multiband pr wideband antennas to cover the transmission on multiple bands of the 5G either in sub 6GHz bands or in mm wave bands.
More interest will directed to MIMO and massive MIMO antennas. Whish are antenna arrays in the mounted on the base stations.
Best wishes
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Hello everyone,
I am in need of someone that can assist me in using the MATLAB 5G Toolbox to implement the algorithm used in the attached paper. I would be very grateful if a video of the step-by-step implementation can be done.
I am really finding the difficult to do the implementation on my own as some things are not clear to me.
Kindly come to my aid as soon as possible as it is a little bit urgent
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Dear Abdullah:
You may benefit from this valuable article about your topic, which explain with programs all the contents of the 5G Toolbox:
I hope it will be helpful...
With my best regards...
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Dear researchers,
In am interested in the potential applications/benefits/barriers of implementing the 5G tech within manufacturing facilities/companies. 
I will particularly appreciate sources reporting previous scientific studies, market reports which may forecast such applications, and outcomes from case/pilot studies (if they exist).
You can also bring your own view and experience within mobile technologies, wireless systems and their integration in manufacturing environments.
Thank you!
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A recent report published by Ericsson, Connectivity and climate change, outlined the potential for huge societal gains through establishing 5G infrastructures. It suggested that implementing 5G technology across four highemitting sectors (power, transport, manufacturing and buildings) could create 55-170 million tons of carbon dioxide equivalent (MtCO2e) of emissions savings per year – the same saving that would be achieved by removing more than 35 million petrol cars from roads in the European Union (EU). It also calculated that at least 40% of the EU’s carbon reduction solutions, up until 2030, are likely to rely on fixed-line and mobile connectivity...pp15
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Hi everybody :)
I am looking for a topic dissertation for my Cybersecurity MSc.
In the last period I got interested about 5G cybersecurity, with Core, RAN and O-RAN threats.
I want to ask if anyone has a interesting idea to develop that could became an interesting experimental/project thesis about cybersecurity aspects (penetration testing, security assessment) on these fields, and not just a survey.
Thank you anyone for your inputs!
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Deep Learning and SDN -based for cyber-attack detection and mitigation on 5G networks
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Send the 5G and 6G frequency band if anybody to know.
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I would really recommend you to have a look at my recent paper (6G Wireless Communications Networks: A Comprehensive Survey). I have compared 5G and 6G in this paper. I have also discussed why we really need 6G networks.
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Many papers already started talking about what 6G should (or could) be and as always many of these expectations are too exaggerated and unrealistic. So, my question is: what do you think will be the 6G in 5 or 10 years compared to the current 5G standard and deployment?
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I would really recommend you to have a look at my recent paper (6G Wireless Communications Networks: A Comprehensive Survey). Many technologies have been discussed, which I believe will be part of future 6G wireless communications networks. I have also discussed why we really need 6G networks. I hope this helps. Best regards
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I am working on video compression techniques for 5G communication. can any one suggest in this regards.
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Read this paper, it might help you fining a lot of recourses for different datasets for video compression
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Dear research scholar, I would like to know the Machine learning algorithm for the Mobile network traffic prediction. i have come across different algorithms like Auto-encoder +Long Short-Term Memory (LSTM), Delmu, DSTN, SES-LSTM, Gated Recurrent Unit(GRU). but not understanding which algorithm is better to go for my work. please anyone help me with this question. Thank you.
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Dear Prabhu Reddy
One of the ideal algorithms for estimating can be mentioned to the Markov model or Hidden Markov model [1] . ​In this algorithm, you can use the Viterbi, and estimate the mobile network traffic according to states. An (HMM) is a statistical model that can describe the evolution of observable events that depend on internal factors, which are not directly visible.
[1] S. S. Sefati and N. J. Navimipour, "A QoS-aware service composition mechanism in the Internet of things using a hidden Markov model-based optimization algorithm," IEEE Internet of Things Journal,
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Hello everyone. I'll start working on my master thesis and my task will be to simulate a SDN architecture with some IoT devices in a 5G environment. I've read that Simu5g (http://simu5g.org/) should be a viable option; I would like to know if anyone here faced some similar challenges. I found this article ( ) but it seems quite outdated, so I'm asking here. Thanks.
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Due to the integration of new and legacy technologies in 5G and applying Artificial Intelligence (AI) and Machine Learning (ML) which are bring more benefits of innovation and supplier diversity in an open market, are expected to experience new challenges to deploy Open RAN; clearly, the low maturity of the technology and also new features like more Open interfaces, multi-vendor integration, multiple slices with different SLA and virtualization and softwarization presents security and trust issues that need to be address, Which secrity aspect do you think is more important?
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How can I create a topology having one BS with multiple antennas and multiple UE with multiple antennas each? I would also like to know to fix the number DL and UL layers? Can anybody suggest a link to study?
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This is quite simple. You can open the home screen and navigate to 5G. In the 5G design window just drop a gNB, a UE, core devices and a server. Connect the gNB to the core using links. Then configure an application from the remote server to the UE.
To modify the antenna settings right click on the gNB (and the UE) and you can modify the number of Tx/Rx antennas in the PHY layer.
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I need a research partner. I'm doing my university thesis on "User scheduling on massive MIMO in 5G". For almost two (02) years I tried my best to complete it. But now, I need help.
If you're good in MATLAB coding and have required knowledge about massive MIMO, 5G and scheduling algorithms, please contact me at
N.B: If you are from Bangladesh, it'll be preferable.
N.B: The work is completely on voluntary. But, I'll put your name on the paper if it published.
Thanks.
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If you like We can contribute
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Most of the emulator or simulation tools for 5G are focused on the radio part. I am looking for an opensource tool to emulate the core network part.
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Hi,
Have a look at http://simu5g.org/
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Hi everyone,
I am doing research regarding predicting possible handovers in 5G mmWave networks. My system contains a macro BS and two small BSs and the user is moving from SBS1 to SBS2 with beamforming technology. My question is what is the required time to complete handover (HO) in 5G networks (HO preparation + HO execution + HO completion)?
Thank you in advance
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Adding to Ananya Hegde ,It is required to reduce the interruption of the handover to very small milliseconds.
Ideally zero time. To see the target values for the 5G please refer to the link:https://www.ericsson.com/en/blog/2020/4/reducing-mobility-interruption-time-5g-networks
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Answers are required in the Physical layer
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The offset QAM is accomplished by delaying the Q signal by a time equal half symbol time to avoid the the zero crossings of the modulated signal wave form which leads to more amplitude variations of waveform. More amplitude variations leads to more out of band emission. OQAM helps reduce the amplitude variations
of the waveform.
On the other side OFDM itself because of the statistical variations of the amplitudes and phases of the subcarriers, the amplitude of the waveform suffers from high signal peaks leading to much greater peak to average power ratio.
Because that OQAM needs delay blocks to implement it is more complicated than the ordinary QAM.
There are two things that are important for the performance metrics; the bandwidth of the waveform, its variation in terms of the P/A power ratio and the out of band emission i n addition to immunity against noise or the bit error rate.
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viAct is a construction tech startup (Contech) that offers an AI monitoring cloud for the construction and plant management industries boosted by SOSV and Vectr Ventures, with participation from Alibaba Hong Kong Entrepreneurs Fund, Artesian Ventures and ParticleX. It uses AI + IoT + 5G with vision technology to optimize construction safety, productivity and compliance. Featured in the list of CEMEX Ventures' TOP 50 most promising startups of 2020 leading the ConTech Ecosystem.
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This company seems very interesting.
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I need guidance on how to set up a simulation involving the 5G library of NetSim interfaced with SUMO tool. Is there an example program I can try?
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NS3 tool is better for this.
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Hi, I am investigating the use of CPU cores in CU/DU of 5G Networks (esp in ORAN domain). Any technical lead would help (such as research, whitepaper etc.)
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I need to create data sets with network parameters - bandwidth, path loss, distance, packet loss, jitter, frequency etc - for 5G.
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Thank you Saurabh and Ritakshi
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Is this per the standard inter-gNB Xn procedure? Also, can the offset (handover margin) be adjusted? Is it based on event A3?
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I want to simulate a multi gNB multi UE scenario in n78 band (C bands 3.5 Ghz) which will be deployed in ASEAN region. How can I model various parameters like UE mobility, buildings, LOS/NLOS, gNB height, weather effects etc in NetSim?
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Ashwini Bhat Yes there is support for massive MIMO in NetSim with upto 128 (T/R) antennas in the gNB and 16 antennas in the UE. One white paper also explain the implementation to some extent in https://tetcos.com/5G-white-papers.html
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I have gone through some of the simulators like Vienna simulator, LTE Pro, NS3. But I am not finding comfortable to proceed with my work. Do you suggest me the best simulator?
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try matlab 2021 version . got good toolbox for 5G
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I am using NetSim, and it has an inbuilt SYN-Flood attack project. Our team would like to create other kinds of attacks i.e UDP attack, ICMP Flood, HTTP Flood etc. How do we go about doing this in NetSim?
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Apart from experiments available for WiFi, IoT, LTE etc., we also want our students to work on experiments on 5G. Does someone have a set of pre-built NetSim experiments which we can quickly adopt for our course? If not, any suggestions on what kind of experiments can be done would be valuable? Thank you.
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NetSim support a range of technologies, including the capability to interface Matlab and C++ programs. So if you want to integrate 5G in a Netsim experiment, you will need to deploy the 5G experiment in Matlab then interface it with NetSim for full deployment. I hope this answers your question.
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In order to utilize the benefits of 5G with Wi-Fi , interested to find how the channel allocation is done in 5G.
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There are two spectrums of 5 G applications, the first band starts from 3.5-5GHz, and the second band is from 24.24GHz and above (Millimetre-wave)
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Hello All,
Please I need assistance on the above-mentioned question with regards to the throughput loss of a 5G system (BS or UE) due to external interference.
Thank you in advance.
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Hi Sajor
You can find the information in the following document.
Regards,
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We are exploring using NetSim to study QoS in 5G for video application. Briefly, we seek to modify network parameters like UE-gNB distance, mobility, pathloss, transmit power, network congestion etc and study impact on throughput and delay. Looking for some good suggestions and references. Thank you.
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There are two options. You can use the “synthetic” video model within NetSim. Just set up the network layout within NetSim using drag/drop. And then set the video traffic flow (source to destination). If you want to send a “real” video file. Then NetSim interfaces with the FFMPEG program for handling video files at the sender and the receiver. For both cases, you can then run simulations by modifying various parameters and analyze the results.
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Good Day dear colleagues
Internet of Things IoTs and 5G networks are landmark in our future technology and they mentioned in massive report by large companies and academic research papers. However, i wonder how can we connect IoTs with 5G networks?
Do they connected with each others thought wifi connected to cloud server or we need 5G sim?
i know that 5G have three mode of operation named:enhanced mobile broadband (eMBB), and massive machine-type communications. (mMTC). ... URLLC, ultra-reliable low latency communications LLC.so that, do we need a 5g sim for each mode or only one 5G sim is enough?
in the case of emergency such as IoTs in health care application, what is the best scenario to send data over 5G fast and reliable ?
Best Regards
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Dear Tariq Kanaan
The 5G is the infrastructure that massively increased the capability of communication to connect IoT devices to the 5G network need 5G sim. The number of sims you want to use in your application is based on the architecture of your design. If your design is a centralized architecture that has a single gateway, you can implement your system with a single 5G sim, but if your system is a decentralized or hybrid architecture that has multiple gateways you need many 5G sims. The number actually depends on the way you have to design the architecture.
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Hello All,
Please is it possible to design a 5G Network grid comprising of distributed base stations and user equipment within. If yes, please help with the procedure.
Thanks in advance.
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Ananya Hegde thank you. I appreciate.
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Question focused on 5G massive MIMO AAU/RRU
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I agree with Shipra Bhatia , the full digital beamforming is a better solution for Massive-MIMO at sub-6 GHz
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Hello All,
Please can anyone help me with the maximum resource blocks (RBs) that can be assigned to a 5G base station (BS) and mobile station (MS) when fully loaded in the downlink communication mode?
Thanks in advance!
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The maximum bit rates achieved in 5G communication by Germany telecom: Deutsche Telekom tested a 5G network live at this year’s IFA. A speed of three gigabits per second was measured. Under ideal conditions, the 5G speed should in future reach up to 10 Gbit/s, the equivalent of a 20-fold increase.
Of course one has to utilize all the network resources including:
Bnadwidth
Time slots
ALL Space division by MIMO.
Highest modulation order which is 256 QAM.
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In 5G, the mixed-numerology is introduced to support diverse QoS requirements. It is also mentioned in the spec that simultaneous transmission and reception with different numerologies in CA is possible.
However, there is few materials mentions how this is achieved. Does a UE requires multiple antennas to transmit with resources of different numerology at the same time? Or it can be done by a single antenna? If the latter is the truth, how does a UE deal with different SINR values generated by resources with different numerologies? (different SINR values lead to different modulation scheme, how can this be done with single antenna?)
p.s.
I have found one paper that is related to my question:
It seems that a UE can deal with resources with different numerology simultaneously, with different modulation scheme. Yet, this paper does not show how this is achieved by the smartphone.
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It would be nice from you that you define the relation between the communication symbols and numerology??
This is the first time that I hear from such vocabulary in electrical communication systems.
What I know is the different symbols resulting after modulating the binary data.
There are binary symbol where every symbol contains either binary 0 or 1.
There is the the 2-bit symbol representing values from 00,10,01 and 11.
There is 3-bit symbol which has 8 states.
and so on.
This method of M-ary symbols help control the number of bit hertz.
And one can send more data in the same bandwidth by using higher order modulation.
It is known that every channel condition or S/N ratio can allow specific symbols.
If it mean symbols then yes one can control the order of modulation of the symbol.
Best wishes
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Hi, researchers,
please could you suggest some papers on dielectric resonator array antenna work at mm-waves in 5G applications, I need it to do my survey about array antenna with some notes :
- cylindrical dielectric resonator array antenna ( 8x8).
- beam steering in two planes ( E, H-plane)
- 28 GHz mm-waves
- dielectric-loaded patch array antenna in mm-waves
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Thank you, Dr.
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we imply that 5G should not be considered as merely an
evolutionary development of previous mobile systems, but should be considered as
a completely new paradigm in mobile communications. why?
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Wireless technology changes gradually, because the demand for data services and quality-of-service are changing gradually. However, there is hope that 5G will enable a paradigm shift, in the sense of supporting the digitalization of our world. So 10 years from now, when we look back and compare 2021 and 2031, the belief is that 5G will have contributed to radical changes in how vehicles, IoT devices, factories, and work places are now wirelessly connected and support stringent service requirements.
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Hi
I am curious to know which channel model is popular for 5G MIMO cellular network (sub 6GHz)?
I heard about COST2100 being the one of them... I could not find good papers providing parameters for modelling ...can anybody provide the source for the parameter of COST2100..
Thank you.
with regards,
Laxmikant Minz
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If you look for information about COST 2100, this paper details all features about this model:
Good luck
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How can I connect IoT device/Applications to 5G network and which simulators can be used?
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Dear Carol Carol Siboe