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# Channel Model Matlab Code

58 Threads found on edaboard.com: Channel Model Matlab Code

## channel model in matlab by using rayleigh fading model

i just need the matlab code for the estimation of channel in matlab code. ---------- Post added at 19:56 ---------- Previous post was at 19:36 ---------- i am doing my project on capacity analysis of under water acoustic mimo communications in that i have to do a channel (...)

## multipath fading matlab code required

hi mukul, I seems to remember that Mathworks has simulink model of the communication system with the multipath fading channel. (not 100% sure) As far as I remember it was in one of the webinar presented by mathworks engineer. (for some of the webinars you can download the code so if you are lucky and if I am not mistaken you can (...)

## Matlab code for generating Rician Random Numbers needed

i think adding DC value to the sum changes the rician numbers to rayleigh. if you remember the existence of line of sight(LOS) signal in mobile propagation which makes the channel model to be rayleigh instead of rician.

## 16 QAM and rayleigh channel with matlab

I am trying to simulate a 16 QAM modulation in rayleigh channel. However the BER is always around 0.5 no matter the Eb/No is. The channel model I am using is: ch=1/sqrt(2)*(randn(N,1)+sqrt(-1)*randn(N,1)); where N is the number of bits. noise=1/sqrt(2)*(randn(N,1)+sqrt(-1)*randn(N,1)); is the AWGN. s_hat=sqrt(snr(k)).*abs(ch).*X (...)

## Rayleigh Fading channel in MatLab

Can anybody write me how can we recover original transmited signal over a rayleight fading channel in matlab? I post the code I'm using to test it. I define the Rayleigh channel but now I don't know how to implement the filter to achieve the transmited data. :| Can please someone help me with the (...)

## Matlab code for MIMO-OFDM including BER, SNR, reyleigh. etc

hi, i need the code foe mimo ofdm deepshika if u are having it plz send at priyanka269085@gmail.com channel modeling material den plz send and i nned to plot ber curve for qpsk modulation using mimo ofdm

## matlab code for channel impulse responce

Hi can any one expalin what is channel impulse responce is how to write matlab code for it.

hi sir, thank you for your reply actually I got one to one relay to work.. i was wondering how to extend that to multiple relaying ? do I need to define n number of channels for that ?

## 2 ray equal power channel model with delay spread

Hi friends, Please i need a source code (C+= or matlab) for modelling 2 ray equal power channel model with delay spread of 5 and 20 microseconds between adjacent paths. I should appreciate your help please.

## Need help in making matlab code for indoor channel model based on FSK modulation

Hello all, I need to make a matlab code for indoor channel model (Office) based on FSK modulation scheme and calculate the BER value.Actually I am new to this thing and do not have any idea from where to start. So if anyone have matlab code for indoor channel (...)

## EbNo BER problem in noise channel model

I use the following formula to generate noise in AWGN BPSK and QPSK , but it failed in QAM16,QAM256 Any suggestion , why it failed? Es = Rc * log2M*Eb σ2 = No/2 Rc : Coding rate =1 M : constellation points Es: energy per symbol Eb: energy per bit σ : Standard deviation No : noise spectral; Eb/No (BPSK) = 1/2σ2 Eb/No

## data transmission over jakes' channel model

i need a matlab code for data transmission through jakes' simulator. do anyone have jakes' channel matlab code.

## AWGN channel model in Verilog

I?m need it too。can u analyze code as following： *******************************************************************************/ /******************************************************************************* The module generates noise,using downlink m-sequences. The x sequence is constructed using the primitive polynomial

## MMSE equalizer for MATLAB

Hello! I'm looking for MMSE equalizer matlab code for AWGN channel model , single user mode. Thank you in advance, Thommer

## multipath rayleigh fading channel modelling

hi i want matlab file or good paper in the following area: "multipath rayleigh fading channel modelling"

## Help!! Design of an OFDM channel w/ M-QAM and FEC conv

Need to simulate a wireless channel with an M-ary QAM scheme for frames/audio or both. The suggested architechute is as follows Data - Modulation - FEC coding - filter - istropic antenna - channel+Noise - antenna - filter - FEC decoding - Demodulation - Dataout. M>32 for QAM BW ~ 6Mhz If anybody has already simulated such a channel (...)

To generate a Rayleigh fading channel model, you first generate real and image part of the independent Gaussian process, then you need design a filter to have the spretrum similar to Jakes model, i.e, to have the Bessel function as the auto-correlation. Passing through the I, Q Gaussian process to this filter, you oculd get the Rayleigh (...)

## Problem with code for implementing MMSE equalizers in Matlab

I was trying to implement a MMSE equalizer in matlab, and come across the following code on the web. The problem is, whenever I searched, I found out that they use tap size the same as the size of discrete channel model. But I have, lets say a channel of h= (the size is 1x100) But

## Matlab nakagami Fading Channel Simulation?

matlab nakagami Fading channel Simulation? help me......:cry:

## rake receiver..for channel tracking using particle filtering

hello can anyone send me matlab code for rake receiver model... for channel tracking using particle filtering in unresolvable multipath environments thanx

## How to model a poisson channel ?

Hi all, I want to transmit a signal over a poison channel. Can anyone tell me how to model a poisson channel? I would also be grateful if you can give me the matlab code. Thank you in advance, d

## Urgent help needed for code

Hi. i am new in communication field.... i am given a task to write a code in matlab. i have to write a code for first to modulate a sorce n then pass it through channel, i have to do it for 4 constellation points i.e source--->modulation---->channel. but i have no idea how to do dis.... kindly (...)

## Wireless Channel Modelling

Dear all, I have simulated WiMAX Transmitter and receiver in matlab. Now I want to introduce channel effect between tx and Rx. Pls guide me to model the channel in matlab. How can I add Fading effect and Delay Spread in channel using matlab. How will I estimate (...)

## channel simmulation and design

Hi friends, can you send me matlab code to find impulse response and tapped delay model. with example. Please friends help to me.. i need urgently.

## BPSK rayleigh fading using Jakes model

i have to generate BER uncoded BPSK in rayleigh fading channel by using Jakes model in matlab anyone have matlab code for Jakes model?? :cry::cry::cry:

## Need Matlab code for un-coded baseband BPSK simulation model

this is a simple code for M - PSK modulation try it, if you need other help, contact me or you can join our groups: and the second %adding a rectangular pulse shaping; clc; clear all;close all; disp('M-Array PSK Modulation')

## Rayleigh fading Simulation using Matlab

Sorry but have you found any matlab code regarding fast fading Rayleigh channel? Now I'm trying to simulate BER performance of BPSK with time-variant Rayleigh channel with different Doppler freqs! I want to simulate BER performance using Clarke fading channel model with several Doppler (...)

## can u help 4 BER performance in MIMO?I need matlab codes for this......

hi,Eb/N0 VS BER...modulation s BPSK... And channel assumption s rayleigh fading...after that have to work for Multiple feedback SIC.....

## simulation of a new modulation scheme in fading channel using MATLAB functions

Hi I want to simulate a new modulation scheme named DCSK for Differential Chaos Shift Keying. this modulation does not use sinusoidal signals as base signals, but uses chaotic signals (a noise-like signal). for each symbol to be sent, we have a signal consisted of N real samples. I want to pass this signals through a fading channel and I wan

## How to generate the testbench for signal process algorithim?

Systemview have large channel model lib + related comm sig generators. Can see time/spectrum/BER displays easy.

## Any good reference on communication system simulation?

OK! want the model for AWGN, and fading channel, matlab, simulink provides complete simulation model for rayleigh fading channel and for AWGN. After finishing your simulation with simulink you can make a exe file from your structure. Also you can tell matlab to give you it's C source (...)

## convolution code for 2/3 rate using matlab

oh !!!! :!: thats a problem ... hea !! where is the mdl file u didnt upload dude? any ways try experimenting with a diffrent puncture pattern or a diffrent data pattern and reduce the channel noise ...!!! hope it helped u -helios

## Channel environment, impulse response question

Hello! I have implemented in matlab some classical channel equalization methods (I used AWGN,BPSK). I have to make BER vs SNR simulations and should do this in different channel environments (rural, hilly, urban..etc). I'm looking for the corresponding impulse response values for them, but so far I didn't find any. Please help me, (...)

## Looking for material to learn OFDM and MIMO

The main challeng in MIMO is that you can use it as Multiplixing ( which mean transmitting different data information on each antenna which mean higher throghput) and Diversity ( which mean transmitting the same data information on each antenna which can improve the channel condition)........you must be careful when using MIMO system because the ch

You can use communications blockset in matlab. There is Rayleigh Fading channel block in blockset and you can simulate implementing a simple simulink model.

## Need help to fix this Dent Model..

Im a a new user of matlab and used this Dent model as my reference. I try a lot of code and command to fix the error and missing code but it seems getting worst. If there is anyone who are really helping and advance in matlab and willing to help me. I wish you guys always happy and god bless you. p/s the (...)

## Is BER = 1 on Matlab in channel simulation good?

Hi I have a project about simulation channel in communication using matlab and I calculate the BER, it was BER=1, I would ask if this value good or bad in the channel. thanks

## ds-cdma simulation model in matlab

This is matlab program "h_block" gives a complex matrix of order 512 by 1 "h" just reshape it into a matrix of order 1 by 512 I want to ask is this is the correct way to define rayleigh channel by the pathloss is defined to be 1,one.

## How to show the performance of LDPC codes in respect to AWGN?

in the matlab code you have channel model in m file try some model than see the result

## Multicode Multicarrier CDMA (MTC-MC CDMA/MC-MC CDMA)

Please can any one send me the matlab code for simulate the Multicode Multicarrier CDMA (MTC-MC CDMA//MC-MC CDMA) using Walsh-Hadamard code, Gold code & Kasami code in Rayleigh fading channel + AWGN with BPSK?? Thanks!

## urgent matlab help confuse.....

simple question >>> when we model Rayleigh channel we use in matlab this command h = 1/sqrt(2)*; % Rayleigh channel also we can use the distribution of Rayleigh channel which is very known p(gama)=(1/gama_ave).*esp(-gama/gama_ave); so what is relation between two commands ? thanks

## digital system with rayleigh channel in simulink

Hello folks, just discovered this valuable forum through google. I searched the forum regarding Rayleigh channel modeling and all I found was matlab m files, so I'm chancing it and hope you might be able to help. I'm currently designing a simulink model for adaptive digital audio transmission, in an AWGN (...)

## need help for changing BPSK to QPSK in BER Zero-Forcing eq.

here is i have a matlab code as follow : --------------------------------------------------------------------------------------------- clear N = 10^6; % number of bits or symbols Eb_N0_dB = ; % multiple Eb/N0 values K = 4; for ii = 1:length(Eb_N0_dB) % Transmitter ip = rand(1,N)>0.5; % generating 0,1 with equal proba

## Rayleighchan properties in wireless lan

hi all... I am currently working on the task of writing matlab code for simulation of wireless lan. I want to add fading in the channel. I use rayleighchan function in matlab. But i dont understand its properties (doppler frecuency, path gain, etc). Which properties that need to be set? Can anyone help me? Sorry for bad (...)

## White Gaussian Noise Generator on MATLAB

Hey there, I'm already aware of the in-built matlab functions for generating random numbers and noise (randn, rand, awgn etc.) It may be an easy solution but I guess I'm unable to see it clearly, so I thought I'd ask for some help here My task is to create a software model of an LDPC Decoder, Encoder and the sort. While (...)

## WIMAX using STBC technique model in MATLAB

you can start to make ur own block diagram e.g:input-->channel coding-->modulation--STBC ENcodeR-->OFDM MODULATOR-->guard interval-->fading etc and you can make it easily

## Monte Carlo simulation of mutual information MIMO Rayleigh, Ricean

Rician Fading model is available here Rayleigh Fading model is available here