digital communication -need ber of qam,8,16,32,64 qam

[subhabrataray13]

digital communication

I badly need ber of qam,8,16,32,64 qam ,gmsk in awgn and rayleigh channel.please help and reply quick.

 

[Aya2002]

digital communication

do you need programs?

please see this group:
**broken link removed**

also if you need programs, i can help you by Matlab

 

[subhabrataray13]

Re: digital communication

yes i need the codes....please help..! here is my email subhabrataray1@gmail.com
please help

 

[Aya2002]

Re: digital communication

See the following Matlab program for 64-QAM: you can modify it according to your request !!!



clc;

clear all;close all;

disp('M-Array QAM Modulation')

%create a random digital message

M=64; %alphabet size

x=randint(input('Number of binary bit stream = '),1,M);

y=modulate(modem.qammod(M),x);



%% transmit signal through an AWGN Channel

ynoisy=awgn(y,input('SNR in dB = '),'measured');

scatterplot,grid;

figure(2)

pwelch

%% Create scattet plot from noisy data



scatterplot(ynoisy),grid;

%% Demodulate ynoisy to recover the message.

z=demodulate(modem.qamdemod(M),ynoisy);

figure(4);

subplot(2,1,1);

stem(x(1:10),'filled'),grid;

subplot(2,1,2);

stem(z(1:10),'filled'),grid;

%%

%Check symbole erroe rate.

[num ty]=symerr(x,z)



Regards.

 

[gayathri123]

Re: digital communication

hai aya2002,
i need to know which latest verion of MATLAB . its very urgent.

 

[Aya2002]

digital communication

really i dont know but i think 2009a and you can see the mathwork web site