Questions related to Wireless Networks
When observing the current scenario of the production plant of the automotive industry 4.0, all the machines and production equipment, the other technological innovations: IoT, AI, Big Data, Cloud, M. Learning etc, all connected by wireless networks and their sensors infrared and clusters operating in series, within the processes designed by the Engineering Center and by Logistica. In this scenario, it is necessary to ask:
a) In your opinion, are the activities performed there meeting the OHS conditions required by OSHA/ILO, not exposing employees to new and different occupational hazards in their tasks?
b) Within these new practices, systems, interpersonal relationships, new tasks and work processes, required of workers by the new technologies installed there, it is possible to identify new risk factors that show a relationship of danger, in this new work environment of Industry 4.0 ?
c) If the answer to item a) is POSITIVE, can you point out examples of safety item or condition at work, of these new tasks?
d) If the answer to item b) is POSITIVE, can you name and describe the new risk factors that you believe exist in the new environment?
e) In your opinion, do you believe that in Industry 4.0, there are better conditions for Occupational Health and Safety than in the old manufacturing industry?
f) What can you suggest to improve the current operational and safety conditions at work, in the industrial process 4.0?
Dears, I will be happy if you answer my questions for I increase my doctoral thesys studies. Thank you very much for all.
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?
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.
I am simulating a wireless network (working at 2GHz), but I found some works in literature that ignore the small-scale fading with respect to large-scale fading,
so in which cases / conditions can I ignore small-scale and multipath fading and concentrate at large-scale only?
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.
This reference  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?
 Huo, Yiming, Xiaodai Dong, and Wei Xu. "5G cellular user equipment: From theory to practical hardware design." IEEE Access 5 (2017): 13992-14010.
you all are doing good I hope?
Please I need a researchable topic in the area of
(1) COGITIVE RADIO TECHNOLOGY
(2) SPECTRUM MANAGEMENT
(3) DATA SECURITY OR THREAT MANAGEMENT IN WIRELESS NETWORK
Thanking you in advance.
Network segmentation reduces attack surface by blocking an attacker in a certain portion of the network. How can I measure the reduction of attack surface after applying segmentation either mathematically or through simulation? Much appreciate your suggestions. Thanks
Hello, i am searching for some new innovation points in 6G about networking slice recently.
I want to know what updates will be made to network slicing in 6G, which cannot do well in 5G.
(Maybe about architectures, methodologies, algorithms, and combination with other 6G new technologies.)
Can you recommend me some good ideas, innovation points or papers( and white papers), thank you.
I am submitting my Ph.D. Thesis entitled "Vertical Handoff Mechanisms for Heterogeneous Wireless Network " to one of the universities in India. I need to submit the list of Adjudicators in the wireless network domain. Kindly let me know if any examiner is available in wirless domain
Software Defined Wireless Network (SDWN) now days allow central controlling of wireless network, can this technique replaces the working of other networks (e.g. AdHoc, Mesh, ... etc) in only single principle called SDWN?
Physical layer security has emerged to secured the IOT and future wireless networks. Recently, the idea of using an intelligent reflective surface(IRS) located between transmitting and receiving devices to create a “tunable” propagation environment. Can IRS be used to enhance the PLS?
First situation: The first protocol is more efficient than the second protocol. Then the user uses the first protocol.
Second situation: The second protocol is more efficient than the first one. Then the user uses the second protocol.
Is that possible?
I am try to build a system model where intelligent reflecting surface is used to enhance the receiver's SNR depending on the position of the receiver.
Based on what I read, a signal is scattered at the atom level and constructive/ destructive superposition is used to direct the signal to a certain user. My question is: Can the signal be directed to a user behind the IRS?
Noma is the best technic used the performance 5G and beyond what are the fumes problem and what is the methods can I use to get results
Can someone help me to realize the basic concept of user power allocation for a wireless heterogenous OFDM network where there is a macro cell and inside it some femto cells. What is the basic procedure involved here for choosing base stations and power allocation of a mobile user to ensure maximum Spectral Efficiency(SE)?
Geometry Based Stochastic Channel Modelling or Spatial Channel Modeling (SCM) methods such as:
- 3GPP-SCM, SCM-E
- Winner (I and II)
produce channel coefficients as a matrix H (may on path or at time) between transmitter and receiver antennas.
Then H associated with CSI matrix. But CSI of real channel assume several components (CQI - SNR, PMI, RI). Also, it is referred sometimes as a matrix of complex numbers (gain and phase)...
How generated channel coefficients are related with CSI?
How Channel State Information (CSI) could be obtained from matrix generated by Spatial Channel Modeling?
Where can I read about it?
A wireless network consisting of two UEs (A & B) and an eNB. The eNB transmits control information to UE A through PDCCH. Can UE B also decode this information? Or is it permissible for UE B to decode the information?
Let's share our opinion about recent attractive topics on communication systems and the potential future directions.
IoT/LPWAN User Survey Link: https://lnkd.in/dVdK-ea
Dear Sir/Madam, We are surveying the use of Low-Power Wide-Area Network (LPWAN) technologies (e.g., LoRa, SigFox, NB-IoT) for the Internet of Things (IoT) solutions for Smart Cities and Transportation Systems. If you or your organization has relevant experience/practices in deploying LPWAN technology, we appreciate you can help take this survey on LPWAN applications. The survey is part of a research project sponsored by VDOT. We greatly appreciate if you can complete the survey by August 14, 2020. Thank you very much. ----------------- Thank you for your help in completing the survey!
I am doing a research in wireless networks trying to use SDN to provide network resiliency I have simulated the network in mininet-wifi I want to be able to use controller to control AP 802.11 parameters like TX power Tx range now I want to know which SDN controller fits for this scenario
In rural or urban areas where home density is very low, the prohibitive cost of trenching cables across the countryside often leaves remote areas with poor or nonexistent broadband Internet connections. Now we are thinking about how to overcome this problem using a significant solution.
What is the difference between path planning and trajectory optimization for UAVs or UAV-enabled wireless networks? Is that similar to the difference between the route planning and the routing design for a wireless ad hoc networks? I need someone to help me to answer this question. Many thanks.
Suppose there is a mobile device at the edge of a cell of a 5G wireless network which has a weak channel with the base station. The edge user can utilize relay assisted D2D communications proposed for 5G. Assume the edge user broadcast a call and expect it to reach at least one neighboring relay. How can the reliability of the broadcast call reaching at least one neighboring relay be mathematically modeled for 5G by taking 3GPP standards into consideration?
Dear all. I want to synchronize 2 or more clocks in wide range wireless network (>1km) with sub-nanosecond accuracy. In my case, GPS synchronization is not sufficient to get sub-ns accuracy. I look for techniques or ideas with easy implementation. Thank you in advance.
How to find the distance distribution of a random point in a cluster from the origin? I have uniformly distributed cluster heads following the Poisson point process and users are deployed around the cluster head, uniformly, following the Poisson process. I want to compute the distance distribution between a random point in the cluster and the origin. I have attached the image as well, where 'd1', 'd2', and 'theta' are Random Variables. I want to find the distribution of 'r'.
I would like to know the standard procedure of initiating a call from a mobile device to another device (D2D ) directly without the support of a cellular network operator link. I need the details of the establishing the D2D communication initially, what are the factors that should be fulfilled to establish the D2D communication.
I am researching on the performance of a simultaneous wireless information and power transfer technique (SWIFT) on a cellular Network and would appreciate latest researches and simulation tools on the topic.
I need help plz, anybody can help me to find a good master thesis topic in the field of computer science/IT.
The topic related to improving wireless network performance/security using one of Artificial intelligence techniques.
any help would be appreciated
thank you in advance
Where can I find a post disaster dataset containing:
- wireless network infomation regarding citizens (network services used, size of each data package transmited, delay, timestamp and location)
- first responders location and communication information (timesatamp, size of each data package transmited, delay, type of communications, etc... )
- location of damaged network insfrastrutures/cells
I am doing a simple channel estimation using Least squares algorithm in a SISO system using QAM modulation.
I am new to this and I do not know what kind of results I have to plot.
I wrote a Matlab code which estimates channel using Least squares algorithm and plots the average mean square error between original channel and estimated coefficients Versus the SNR.
I am attaching the Matlab code and the plot for your reference. Kindly let me know what kind of results that I have to plot.
Ready to give more details if you want.
I have a problem with the modem (D-link). When you set up the modem, I connect normally, but after a few time, the Wi-Fi network is disconnected and when I try to re-enter in the network, it does not want to enter even, though the password is correct. Note: The net is affected on the cable normally
I am trying to insert new block in the given example but I am getting error, don't know how to rectify those errors, need help regarding the same.
Hi I am looking for an answer about the coordination and cooperation.
When I read article on Cooperation, its means sharing the same data among the multiple nodes to enhance reliability.
And when I read about coordination, that is bring all nodes together to do the same task.
Can you please tell me the difference?
during my day to day I could appreciate how the intensity of the wifi networks are altered because of the existence of other networks, here is my question because I want to know if. Is there any kind of interference between wireless networks?
Wireless network will reduce production cost of mother boards and will be faster in response
I clarified the speed and transmission range of my nodes in TCL code and I need to include their values in my C++ code too. Is there any body who can help with this issue?
Recently , Deep-learning and AI techniques have received more attention as a key enabler for future 5G and beyond wireless networks.
Do you have any ideas about what 5G problems this technology can be used to solve them.
for single relay , theoretical BER is = 0.5*(1- (g/(1+g))^H/2).
g= SNR ( say same for each hop) . g= (mod(h))^2 *E/N ; H= no of hops
as per the published paper- ' End-to-End Average BER in Multihop Wireless Networks over Fading Channels ' in that paper, simulatin result is same (100% same result)as this mathematical expression.
but when I am trying to implementing it in MatLab , result is not nearly same.( difference in BER= 0.01 max) but not exactly same.. why?
can anyone send me Matlab Code for Decode and Forward simulation of cooperative scheme??
we come to generation that subcarriers are no longer orthogonal to each other. here the different parameters such as amplitude, frequency and phase will change for each subcarrier. by using cognitive radio the spread spectrum is reduced. GFDM plays a major role here. im looking for an MATLAB code or LABVIEW code to analyze this.
anyone related to this work, kindly reply
To get ouput graphs I need to generate vector and scalar graphs but can't find any way to do it. Only an event log file is generated.
I am looking for a open source software, which can allow me to monitor the parameters of a wireless network.
1. Serving Cell RSRP, RSRQ & SINR.
2. Neighbor Cells RSRP.
3. CQI reported from the device.
4. Allocated MCS.
Hi, I am using MiXim and I need to calculate the throughput for 802.15.04 narrow network. Can anyone tell me how can I calculate this metric?
I am interested in calculating transmission power in case of underwater sensor networks. I am calculating the transmit power as follows. Kindly suggest if my calculation is right. Moreover also suggest whether the values i am using i.e values for bandwidth, spreading etc are correct.
Absorption and transmission loss models for underwater sensor networks are given as follows.
TL=(d^spreading)*(absorption^d); % d denotes distance btween transmitter and receiver
Where the Power in dB and power in watts is calculated as follows
The following values are being used.
PWreception=1; (kindly suggest if the value for reception power level(PWreception) is correct or not)
Exact framework for designing a medium access control (MAC) protocol in Cognitive Radio Networks(CRN)
The MIMO employed extensively in the current wireless network which illustrates the high throughput and bandwidth effectiveness. In the OFDMA and MIMO techniques, the significant function is
scheduling and resource allocation among the numerous users.
So far I've simulate only wired networks on Opnet modeler (Academic Version 17.5) and that too 10BaseT Duplex Link. Now I want to simulate wireless network (zigbee or wi-fi), is it possible to do this on the above mentioned version ?
To the best of my knowledge, the cost associated with a wireless link following the ZigBee standard is calculated using the below formula.
C(l)= min(7, round(1/p(l)4) )
where p(l) is probability of successful packet delivery over the wireless link l.
The paper "Wireless Sensor Network With Perpetual Motes for Terrestrial Snail Activity Monitoring (http://ieeexplore.ieee.org/abstract/document/7954581/)" calculates it using the below formula.
p(l) = 1 - ((0.8/radio range) * distance between two nodes + rand (-0.1, 0.1))
Is it a correct way to obtain p(l) ?
Otherwise, how to obtain the probability of successful packet delivery (p(l) ) in the simulations?
Any help is highly appreciated. Thank you in advance.
The frequency of data sampling differs in commonly used mechanism such as uniform, nonuniform, random, event-triggered etc. Less frequent sampling saves energy. How do we compare energy consumption of different sampling mechanism for a particular topology in a multi-agent system?
It has been recently claimed that D2D communication in LTE-A (Rel 12+) will establish direct communication with the device in its proximity (UE) and can have many potential advantages e.g., increased network spectral efficiency, energy efficiency, reduced transmission delay, offloaded traffic for BS and less congestion in cellular core network. In contrast, there are various anticipated challenges, for example Device discovery. D2D session setup, D2D resource allocation, D2D MIMO transmission and D2D-aided BS deployment in HetNets (Heterogeneous Networks).
Keeping this in view, can somebody shed light on possible differences between D2D communication and existing wireless transmission techniques such as WiFi Direct, Bluetooth, UWB? How is it different than these existing ones?
I request to add some journal titles that are giving first decision in 1-2 months positively. Thanks in advance.
in Mobile wireless networks, is there an equation that connects the path loss for specific modulation and coding scheme (MCS) and specific distance between Tx and Rx with the packet delivery ratio or the probability of packet delivery?
How can I use cooperative spectrum sensing to eliminate primary user emulation attacks in cognitive radio networks using energy detection?