No tutorial on MIMO :( :(

[humayun]

I didn't find any tutorial on MIMO on this Website
I would request the administrator to please upload one!

Thanks!

[charan langton]

Working on it.

[humayun]

OK. & I'm anxiously waiting to see it in your easy-to-understand style
I've read your OFDM tutorial and I liked it!

[imran]

dear CONGRATS for creating such a useful tutorials... 2 thumbs up for you

I am having trouble downloading tutorial 11 on link budjet, 18 and 19 on phase locked loop and 24 on turbo coding and MAP decoding both parts. Please help me out

[junaidhussain023]

hello every one can some one plzzzzzzz help me in the code why not getting the bit error rate curve for qpsk in OFDM

clc;
clear all
rand('seed',0);
randn('seed',0);

packets =100;
Bps=4;
DecodeDepth=28;
n=4;
k=2;
bits=12;
rate=1/2;
cons= 7;
gen=[171 133];
N_fft=64;

SNR_arry = 0:5:25

for snr_i=1:length(SNR_arry);

snr=SNR_arry(snr_i)

X=n*bits;

%for i=1:packets

msg=randint(1,X);

trel=poly2trellis(cons,gen);

cn = convenc(msg,trel);

rp= reshape(cn,length(cn)/k,k);

dec=bi2de(rp,'left-msb');

X_mod=pskmod(dec,Bps);

ifft_sig =ifft(X_mod,N_fft);

ifft_sig=ifft_sig(';

%%%%%%%%%%%% GI %%%%%%%%%%%%

cp = ifft_sig(49:64);
cp= [cp ifft_sig];
cp=cp(';

%%%%%%%%% NOISE %%%%%%%%%%%%%%%%%%%%%%

noise=randn(size(cp))+j*randn(size(cp))*1/sqrt(2);
H= cp+noise;
% power=sum(abs(X_mod).^2)/length(X_mod);
% pwsig=10*log10(power);
% nipower=pwsig-snr;
% H=wgn(1,length(cp),nipower,'complex');

%%%%%%%%%%%%%%% Remove CP %%%%%%%%%%%%%%%%%%%%%%%%%

GR = H(17:end);

%%%%%%%%%%%%% FFT %%%%%%%%%%%%%%%%%%%%%%%%%%%%

ff_sig = fft(GR,N_fft);

%%%%%%%%%%%%%%%%Demodulation%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

dem = pskdemod(ff_sig,Bps);
bi=de2bi(dem,'left-msb');
bi=bi(';

%%%%%%%%%%%%%%%%%% Decode %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

x_decod=vitdec(bi,trel,DecodeDepth,'trunc', 'hard');
decod=x_decod(1:48);
[row,column]=size(msg);

BER=0;
biterror=0;
for i=1:row
for j=1:X
if decod(i,j)~=msg(i,j)
biterror=biterror+1;
end
end
end
BER(snr_i)=biterror/(row*X)
%[num(snr_i),rat(snr_i)]=biterr(msg,decod);
% err =xor(msg,decod);
%rat=err(snr_i)/length(msg);
yy=semilogy(snr_i,BER,'b-');
grid on
% end
end

[mazdaspring]

Nov 21, 2010 22:26:02 GMT -5 charan langton said:

Working on it.

Hi,

Have you manage to do MIMO tutorial yet? Please upload it when you finish. Would you be able to let me know roughly when it will be done. Thank you so much for your help and building this useful blog.

[wireless]

hey ieee is providing a free tutorial on mimo check this website and fill in the details to view the tutorial. think it might be helpful

www.comsoc.org/form/tutorial-registration-mimo-systems-wireless-communications

[mazdaspring]

Mar 10, 2011 12:00:08 GMT -5 wireless said:

hey ieee is providing a free tutorial on mimo check this website and fill in the details to view the tutorial. think it might be helpful

www.comsoc.org/form/tutorial-registration-mimo-systems-wireless-communications

Do you know how to save these video from the website? I want to keep it to watch it in the future.