Wireless - Science topic

I wanted to do a research on charging infrastructure of APAC countries or EU how the charging infrastructure is now and growing in the future and the conclusion to make a go-to strategy for BEVs when is the perfect time launch in that specific country/market. So deep study of v2g and v2x technology and also wireless charging in public and home case study.

It is an IEEE paper in which currently i am doing my project.

We know that for each and every action, there is an equal and opposite reaction. For advanced wireless sensor technology, I developed a formula: “Due to the active sensor technology, every human, animal or object is affected by the processed radio frequencies of its movement through electromagnetic transmission within the boundaries of the body in the GPS positions and GNSS distances. This effect is proportional to its weight factors and disproportionate to its GPS positions and GNSS distances. As a result, the person, animal or object is damaged by the changing waves and for recovery systems, the living object should change instantly from the existing location with tightly closed eyes”

page-84,

what is the main wireless ISP 5gHz networks parameters that effects quality of services on costumer connection.

Machine learning, deep learning, wireless, 5G, 6G and communications

Quoting CNN report: https://www.cnn.com/2022/12/12/politics/nuclear-fusion-energy-us-scientists-climate/index.html

"For the first time ever, US scientists at the National Ignition Facility at the Lawrence Livermore National Laboratory in California successfully produced a nuclear fusion reaction resulting in a net energy gain, a source familiar with the project confirmed to CNN.

The US Department of Energy is expected to officially announce the breakthrough Tuesday."

We all know what All Mankind have been through for the last decades, of which the climate change, energy crisis, etc. have always been pains in the neck. They directly or indirectly caused the shortage, inflation, supply-chain disruptions, regional/global economic crisis, or even escalated conflicts. Now, here comes a promising solution! (I personally suppose such an incredible scientific breakthrough deserves multiple Nobel Prizes!)

Assuming this major scientific breakthrough is solid and safe. Here come more interesting questions that are perhaps worth our attention and discussion:

1. How long would it take for this scientific breakthrough to be transferred to engineering deployment and energy usage in our daily life? < 10 years, 10-30 years, 30 - 50 years, or > 50 years?

2. What could you think of the pros/cons of this breakthrough (e.g., would it help mitigate the climate change, poverty issues, and regional/global conflicts over energy and resources? ), and what should be first done before the deployment? Legislation, international treaties, environmental protection, and/or etc.?

3. How do you think this breakthrough will accelerate all mankind to the Type-I Civilization (according to Kardashev Scale) and become a Spaceborne Civilization/Species?

(https://en.wikipedia.org/wiki/Kardashev_scale)

4. What would be your thoughts/ideas/advice/suggestions/opinions on this breakthrough and how it can better serve all mankind?

The well known application of wireless power transmission in automotive sector is wireless charging, and it is usually of high power. But are there any other applications or scope of implementation in other area as well with a 12V bus? Because low power WPT can be really effective (say <250W) in some cases. One example is the possibility of wireless charging points for navigation devices and other infotainment systems in vehicle. Still they are just additional accessories. Are there any other typical area in vehicle where the introduction of WPT can make the system simple/ effortless?

In a signal is to be transmismitted, first pilot symbols are added and then through Mach-zehnder modulator it has to be transmitted for optical communication purposes. So, for pilot symbols, they have to be go through Mach-Zehnder modulator. The output of Mach-Zehnder modulator is E_out=cos(phi); Where phi= ((U+U_dc)/U_pi)*pi. and here, U_dc, U_pi and pi are constant. And U is the information after inserting pilots. This signal E_out is sent through the channel h.

Now, my question is that how should I estimate the channel because the pilot are gone through Mach-Zehnder modulator before the channel. and How should I extract the pilots and estimate the channel? Thank you.

Will it be 1 or 2?

I'm looking for an advises regarding Machine Learning methods applied in Wireless books to solve some optimization problems.

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?

Intelligent Reflecting Surfaces (IRS) or Reconfigurable Intelligent Surfaces (RIS) or whatever their name is, are being discussed in the literature for years now as a great way to control the wireless channel (controled environment) and increase the spectrum and energy efficiency.

My question is that we know that many companies are still struggling to make ends meet when in comes to 5G small cells deployment and this RIS or IRS will increase the cost of coverage extensively with the higher frequencies, so will it be economically feasible for all companies to adopt and deploy? and what specific scenarios would be more encouraging?

I appreciate any input in this matter.

Best regards

It is stated in the official IEEE AWPL website under "Information for authors" that "Starting for manuscript submitted in 2022, mandatory over-length page charges have been removed". Does it mean that now no processing fee will be charged by IEEE AWPL?

I am looking to a cloud machine has the Wireless InSite software package to rent it and use it approximately for 1 month.

TOo measure mutual inductance and self inductance

Here you can talk and share your idea and experiences on network on chip simulators in any fields like Wire, Wireless, 2D, 3D, Photonic, etc.

feel free to ask questions and share ideas.

what is the best simulator in this field and what makes it better than others?

I'm planning on making a 4x4 Wireless antenna @ 3.5GHz. What should be the ideal return loss and VSWR values??

Hey,

I am in the process of setting up an EEG system with dogs looking at the classification of olfactory stimuli.

Initially, I was after a wireless system (Bluetooth/wifi) but was warned regarding signal quality and low sample rates.

I would love to hear if anyone has a positive experience with wireless systems or any insight into the pros/cons of wireless options.

Thanks!

Dear Researchers,

While simulating a shadowed fading channel I meet following problem:

I derive the formula for ASER which is in the form of infinite series and contains Meijer-G function (z in Meijer-G = some constant(based on channel parameters)/SNR).

If I simulate the system for 12 to 27 dB SNR, the simulation values perfectly matches with the theoretical values. [I add only 50 terms as I check after it, the term didn't contribute more than 10^(-10)].

But for lower values of SNR i.e., <12dB approx, the theoretical value of ASER suddenly reduces and become 0.

For reference, see fig attached showing vertical lines below 12dB SNR.

The reason I found till now is that this happens due to Meijer-G function, but why?

Did I miss something? For example any condition which restrict not to go below a certain value in Meijer-G.

Do anyone face this issue?

Or any suggestions.

Most of the authors presented their work on Mach-Zehnder modulator in fiber optic communication. When I saw Mach-Zehnder Modulator on internet for buying it is showing it with fiber optic cable both sides of Mach-Zehnder Modulator(input and oupt side). My question is that can we use Mach-zehnder modulator for intensity modulation in wireless optical communication? Please help.

add value in packet header in ns2 wireless tcl code

add value in packet header in ns2 wireless tcl code

add value in packet header in ns2 wireless tcl code

add value in packet header in ns2 wireless tcl code

add value in packet header in ns2 wireless tcl code

What is the target wireless technology for IoT and I4.0? Licensed or unlicensed. We have seen a tentative of wireless operators and manufacturers in selling 2G, 3G, 4G, and now 5G as the key technology for IoT and I4.0 applications. Also, unlicensed technologies based on IEEE 802.11 and 80.15.4 standards come to the table as promising solutions. Coverage, interference, data rates, quality of service, and delay are some constraints to be considered when defining a wireless solution. What is the target wireless technology for IoT and I4.0 in this decade?

I need to model a wireless optical diffuse link and observe the blocking effect in indoor environment. Is there any software in which I can simulate the channel model?

How I could modify source code of tcp-variants-comparison instead of simulate two wired nodes to many wireless nodes.

the journal could be on electrical engineering, communication , wireless, antenna

the email or the web site for the journal

actually there is no problem in money

but i need know is there any free journal exist in this world?

Hi

I’m looking for a solution for 2 way audio connectivity between a remote site with wireless headphones and a PC. In the remote site there is only possible to get power from a POE (Power Over Ethernet). The PC contains our own backend software and application.

Is there a solution based on Wi-Fi headphones?

What suggested communication software to use (WebRTC?)

Any other ideas?

Thanks

Doron

Hi, I am not a physician but curious about the bipolar activity in the brain whether a focal turbulent activity and having a fixed place in the cortex or a wandering turbulent activity in the brain.

In literature is it correlated with some two polar EEG activities which have antagonist effect for the person or is it a psychological interpretation of person according to his mood for an irregular activity in the brain.

If the activity could be defined with its place and type, is it possible to distract the activity pattern through an invasive thin rod which has an electromagnetic effect to affect the electrical deviation of the neuronal activity causing bipolarity? or via wireless way such as TMS?

Thank you,

For channel modeling, we use various probability density function (pdf) models. So, wireless channel modeling with machine learning is better than pdf models like Rayleigh, lognormal?

This is just like the EAS of NDRRMC. It will strongly vibrate your phone for a bad weather update.

MATLAB Monte Carlo simulation is very common and important for UWOC. How did you realize the Matlab Monte Carlo simulation of underwater wireless optical communication? Source code sharing?

Hello,

I need to collect RSSI and CSI data of Wi-Fi device using matlab or any programs on Linux or Windows.

please someone can help me to do it, this is my email mohcenelmakkaoui@gmail.com.

best regards.

In wireless communication channel modeling, capacity is calculated based on computed H matrix and SNR value.

H matrix is calculated through a different models - COST..WINNER..etc.

I am wondering how to calculate SNR at different locations of UE In a cell?

many papers assume a certain SNR before capacity calculation.

How one can calculate SNR in an urban macro environment in presence of scatterers with different BS-UE positions in distance and angle?

I am looking for SNR calculation throughout a cell for MIMO wireless channel using directive antennas.

In the sense of antennas, their characteristics that makes them usable in broadcasting and wireless application

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Physical training is considered as a low-cost intervention to generate cardioprotective benefits and to promote physical and mental health, while reducing the severity of acute respiratory in-fection symptoms in older adults. However, lockdown measures during COVID-19 have limited people’s opportunity to exercise regularly. The aim of this study was to investigate the effect of eight weeks of Fitness and Dance training, followed by four weeks of COVID-19-induced de-training, on cardiac adaptations and physical performance indicators in older adults with mild cognitive impairment (MCI). Twelve older adults (6 males and 6 females) with MCI (age, 73 ± 4.4 y; body mass, 75.3 ± 6.4 kg; height, 172 ± 8 cm; MMSE score: 24–27) participated in eight weeks of a combined Fitness-Dance training intervention (two sessions/week) followed by four weeks of training cessation induced by COVID-19 lockdowns. Wireless Polar Team Pro and Polar heart rate sensors (H10) were used to monitor covered distance, speed, heart rate (HR min, avg and max), time in HR zone 1 to 5, strenuousness (load score), beat-to-beat interval (max RR and avg RR) and heart rate variability (HRV-RMSSD). One-way ANOVA was used to analyze the data of the three test sessions (T1: first training session, T2: last training session of the eight-week training program, and T3: first training session after the four-week training cessation). Statistical analysis showed that eight weeks of combined Fitness-Dance training induced beneficial cardiac adaptations by decreasing HR (HR min, HR avg and HR max) with p < 0.001, ES = 0.5–0.6 and Δ = −7 to−9 bpm, and increasing HRV related responses (max and avg RR and RMSSD), with p < 0.01 and ES = 0.4. Consequently, participants spent more time in comfortable HR zones (e.g., p < 0.0005; ES = 0.7; Δ = 25% for HR zone 1) and showed reduced strenuousness (p = 0.02, Δ = −15% for load score), despite the higher covered total distance and average speed (p < 0.01; ES = 0.4). However, these changes were reversed after only four weeks of COVID-19 induced detraining, with values of all parameters returning to their baseline levels. In conclusion, eight weeks of combined Fitness-Dance training seems to be an efficient strategy to promote cardioprotective benefits in older adults with MCI. Importantly, to maintain these health benefits, training has to be continued and detraining periods should be reduced. During a pandemic, home-based exercise programs may provide an effective and efficient alternative of physical training.

About 18 months ago we bought a 16 channels TBSI wireless system for our lab in Manchester (UK). It works very well, and we almost finished an exciting project with it. However, in unfortunate circumstances the PC I was running the experiments went on fire. So, I tried to re-install it on a new machine but the installation CD for NEUROWARE now appears corrupted.

Does anyone know how to get TBSI software now that product has been discontinued and the company acquired by Harvard Bioscience? It is for the F1 system.

Best

Riccardo

What will be the effect of LORA Node when we put inside Closed Metallic Box?

LORA - 868Mhz

or what will be the Maximum Speed and Range we can get from it?

From my understanding, common industrial standards such as Qi Wireless Charging will use frequencies ranging from 80 to 300 kHz. However, there is research carried out on higher frequencies as well. What are the advantages and drawbacks when it comes to using higher frequencies?

Hello researchers,

I am a PhD student researcher , I am working on the optimization of the deployment of RFID systems in wireless body networks, as a first step I simulated a WBAN network composed of 10 nodes and a coordinator in with Castalia 3. 2, I have worked with Castalia on changing the values of the MAC layer parameters (access periods) and the radio layer parameters (type of moudulation) but the performance has not been improved much.

now I am looking to improve the performance of BAN network studied, some researchers proposed me to work on a mathematical modeling to maximize the packet reception rate Throughput) and minimize the energy consumption according to the optimal position of coordinator at the body. They proposed to me to perform the calculation with Matlab.

My question is what are the steps to follow to realize the theoretical part: I propose you the steps and please, if I have a mistake thank you to correct it:

- proposal of a multi-objective modeling : mathematical formulation of the objectives and constraints

- proposal of an optimization algorithm

- implementation on matlab of mathematical model and algorithm

i want to know what i have to do after defining the mathematical model (multiobjective optimization problem ? from the definition of the mathematical formulas to the implementation with Matlab of the calculation model, do you have a document or a tutorial to follow ?

Best regards and thanks

Hello researchers,

I am a PhD student researcher , I am working on the optimization of the deployment of RFID systems in wireless body networks, as a first step I simulated a WBAN network composed of 10 nodes and a coordinator in with Castalia 3. 2, now I am looking to improve the performance of BAN network studied, some researchers proposed me to work on a mathematical modeling to maximize the packet reception rate and minimize the energy consumption according to the optimal position of coordinator at the body, Do you think that the calculations of Throughput and Consumed energy are feasible in Matlab and is this idea is effective for the improvement of WBAN performances ?

Best Regards

Hello researchers, Hello Castalia3.2 researchers

I am a beginner with Castalia, I work on optimization of RFID systems used in wireless body networks. I simulated a WBAN with 10 nodes and one coordinator under Castalia using the standard modules of Castalia 3.2 (MAC,Radio, pathloss wireless channel), just i have defined the necessary parameters (omnetpp.ini) like the example BANtest in Castalia.

Now, i want to work on the improvement and a new implementation of the BaselineBANMAC module (BAN protocol) and the radio module to find good results for latency, consumed energy and Throughput (Received Packet).

Do have any idea to help me or can you propose to me works that i can consult or researchers that I can contact to start an implementation under Castalia, my goal is to know how I can improve a WBAN network and how start an implementation of the two new modules: MAC Layer (IEEE 802.15.6) and radio layer.

Thank you in advance

what is the mean doppler shift for fixed wireless transmitter and receiver?

is it 0 or not?

Suppose I want to send a wireless message to 1 receiver (case-1); and I want to send the same message to 100 receivers (case-2). (Like sending a email/text message to multiple recipients by adding the recipients in the same email/message recipient's address).

So, will case-2 require same time as case-1? Or time of case-2 = 100 * time of case-1 ?

Or anything else ?

Please help me out with your valuable information.

Thank you very much.

Currently, I am working on a Rail-Structure-Interaction live research project using wireless sensors, which need to be compared with numerical analysis.

I am trying to find the amount of force transfer from rail to the sleeper, sleeper to deck and deck to Elastomeric bearing and then to the pier.

Any Idea or reference for Instrumentation will be of great help.

Thanks in advance.

I need a tesla coil at least like 3 or 4 times larger than what I currently have (a 15V/2A output) it WORKS but my LED must be like within an inch of the keychain sized tesla coil! …all the kits are to build SMALL SAME SIZE OUTPUTS OR ARE WAY TO BIG (and dangerous, not to mention expensive as hell too!!!)!!!

Please if anyone has some guidance or hep on how to know like if i make 1 from scratch how do i know how may turns of Wire do I need in my coil and things like resistor sizes and ALL of that if it is not in a ore assembled "kit" but again, they do not build what I need, or build WAY TO COMPLICATED and dangerous stuff to even attempt to be honest...)

Two very recent papers that illustrate the potential of OWC to support Tb/s communications:

1) A Tb/s Indoor Optical Wireless Access System Using VCSEL Arrays

2) A Tb/s Indoor Optical Wireless Backhaul System Using VCSEL Arrays

Hello great researchers,

I am working on a wireless pressure monitoring project where sensing part is actually an LC resonance sensor and I am using a planar coil as a reader to get wireless contact between sensor and reader. Reader coil is connected with a Vector Network Analyzer (VNA) where I am measuring the S11 parameters in log magnitude form. Currently I am able to detect the resonance frequency of the sensor from a distance of 3mm between sensor and reader but I want to increase this distance up to 5-10 cm but I am struggling in this. Can someone help me to find out a solution that how I can increase the coupling range between sensor and reader. I have flexibility at the reader size.

Thanks in advance,

Farooq

I want to publish my chapters from my thesis in the field of WSANs. Anyone of you suggests to me any best publisher which can do this.

Connectivity and Routing of Wireless Sensor and Actor Networks.

Dear sir

In wireless charging electrical vehicle design, what are the basic requirements and what are standards are taking.

In world wide or Indian standard what are the specification, please provide any papers or material sir

Thank you sir

I need the data for mmWave channel measurement for my work. I explored a few papers by the NYU Wireless group and other researchers, who had done the channel measurements and presented the best fitting channel models for mmWave communication. It will be very useful if one knows where can I get access to the measurement data.

Thank you in advance.

Wireless energy

Dear All, You are welcome to submit your work to the special issue of Applied Sciences titled: "Novel Research on Optical and Wireless Sensors for Industrial Applications".

The issue aims to discuss and present recent developments in sensing techniques especially attractive from the industrial point of view. Topics like distributed sensors and sensor networks, environmental sensing, wireless monitoring, sensing devices and techniques, non-GPS positioning or big data management are of particular interest, however, other industry-sensing oriented research papers are also welcome for submission. More information can be found on: https://www.mdpi.com/journal/applsci/special_issues/Novel_Research_on_Optical_and_Wireless_Sensors_for_Industrial_Applications

Keep well and have a very good New Year!

Is there someone who has a research paper?

Preferably for frequencies around 700 Mhz, 868 Mhz, 900 Mhz.

I am a research scholar, working on wearable antenna design for wireless and biomedical application. I have 2 questions.

1. simulations are being done for some designs and obtaing gain less than 7dB for all my designs(slotted patch with partial ground plane). In on-body scenario, this simulated 7dB may decrease. so i want to know the value of gain in practical wearable environment (especially in WBANs).

2. In some cases, i am getting -ve gain and directivity or -ve value for radiation efficiency with good S11 value (-30 to -40dB). I unable to find the solution for this. Here, substrate material is polyimide.

Hi researchers, I'm a PhD student , i'm working on the multi-objective optimization of RFID systems used in wireless body networks. Are there some who can help me with scientific papers that talk about a mathematical modeling of the multiobjective optimization problem of this type of problem. Knowing that I have found works that talk about multiobjective optimization of RFID systems, but these studies don't talk about multiobjective optimization in a wireless body network rather they talk about optimization in an RFID network.

Hi RG,

I'm looking for a blood pressure device/module/kit which outputs raw data (serial or wireless, digital or analog). Usually, the information from these devices is on-screen only or, if Bluetooth, connected to an app that does not permit you to access the raw data.

I need to develop an instrument that measures the pressure data from the sphygmomanometer and processes it in a microcontroller to send it elsewhere.

I couldn't find this kind of solution anywhere. I'm already thinking of buying an analogical sphygmomanometer and hacking a pressure sensor in it. What do you think?

Recently I’m interested in algorithm about TSCH mode in 802.15.4e, I’m wondering if it’s possible multi-radio mechanism is allowed in communication between motes(or sensors) in wireless network.

Here I treat multi-radio as transmit data on multi channels at the same time to achieve larger throughput， i.e. we can achieve 2Mbps at most at one channel, but with multi-radio, like 5, we can achieve 5*2=10Mbps data rate at most.

I’m not sure if it works, it also seems difficult for antenna design, which is expected to be simple or at low cost.

Hi researchers, I'm a PhD student , i'm working on the multi-objective optimization of RFID systems used in wireless body networks. Are there some who can help me with scientific papers that talk about a mathematical modeling of the multiobjective optimization problem of this type of problem. Knowing that I have found works that talk about multiobjective optimization of RFID systems, but these studies don't talk about multiobjective optimization in a wireless body network rather they talk about optimization in an RFID network.

Are there any papers that link the multiobjective optimization of RFID networks with the multiobjective optimization of wireless body networks?

Thank you in advance

Recently, I was studying the knowledge about wireless rechargeable networks and found that a mobile charger can charge multiple sensor nodes simultaneously. Is there a situation where a node can be charged by multiple chargers at the same time? Please give me some references, thanks very much!

We have performed the DWC of electric vehicles in network topological order, where charge was transferred among paired EV(s). I need journal suggestion for its paper publication.

I'm about to star my thesis on wireless charging. I want to develop a system for a smart city, where there are many stations for electric vehicles (cars,buses,drones e.t.c.) to charge in order to travel longer distances. I want to use inductive charging because, firstly "smart city" and secondly for the convenience of disabled people.(electric wheelchairs batteries today can last for up to 8 hours, which is pretty good but it still separates them from society).

Before i start working on this, i found that wireless charging using radio waves via rectena now can charge cellphones up to 12 meters! I need some advice on which mean from the two i should work (basically please tell me if charging an electric car by using radio raves sounds stupid).

Respected Sir,

I am a follower of your project. I am a research scholar. I wanted to know software and hardware which you have used for your project. Is there any toolbox available for wireless optical communication (FSO)?

Thank you for your time and waiting for your reply

Thank you.

I am little bit confused in reading the curve , outage probability (CDF) versus capacity. kindly explain.

In MIMO optical wireless, locating all photodiodes (PDs) in one side of the smartphone or user equipment may lead to high correlation between the elements of channel gain matrix. This will cause ill-condition channel matrix and high BER. Hence, the aim is to break this symmetry. Multi-directional Receiver (MDR) is one practical solution that has been investigated in the following paper and compared with the traditional method of locating all PDs on one side of the user's device.

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8790655

Please let me know your opinion on this paper.

Thanks in advance.

Dear all,

I need to simulate a wireless visual sensor network in NS-3 simulator and i need to change the field of view of camera nodes but i don't know how, did any one have an idea?

Thanks in advance.

In the Random Access procedure which is performed by MAC layer it selects preambles from set A and B with equal probablility for each set.As there is only 64 number of preambles why it has to be divided into two groups.is there any significance for each group?

Dear all,

I have a stupid question as follow:

I read some papers related to the comparison between the capacity region between some types of wireless Medium Access Control (MAC) such as TDMA, FDMA. For example, if the capacity region of TDMA is larger than that of FDMA, can we say that the communication protocols using TDMA are more reliable than FDMA? How do we convert the data rate to reliable communication?

Thank you very much.

This field being new to me, I have tried reading random research papers but it couldn't help me much.I want to know about entire setup starting from field generation in driver coil till power delivery to load.

Hi everyone,

This is my first time posting a question on Research Gate, hope someone can help me.

I just wonder if phase noise and I/Q imbalance the same thing in wireless receivers?

Both these two things are originated from the local oscillator.

Thank you,

Van Ly

I want names or links of some authentic books for understanding basic concepts, latest technical challenges and future research directions. I read the book "Wireless Device-to-Device Communications and Networks"- by Lingyang Song, Dusit Niyato, Singapore Zhu Han, Ekram Hossain. But want some more books for reading .Kindly provide some links to get authentic books/ chapters on latest research updates on device to device communication.

South Korea, China, and the United States started racing for 5G network deployment. NYU Wireless Working on 6G, then what about India ? Is there any Lab in India ?