Prev: Simulink block properties
Next: FFTW in mex (compiling errors)
From: Andy on 29 Jan 2010 06:20
Hi guys, i need a code for simulation of ofdm under Zero Forcing and MMSE channel.

Thanks in advance
From: angelo on 11 Feb 2010 06:52
On 29 Gen, 12:20, "Andy " <champ_aak...(a)hotmail.com> wrote:
> Hi guys, i need a code for simulation of ofdm under Zero Forcing andMMSEchannel.
>
> Thanks in advance

hi i am doing the same and i have same problem!
i am doing my master thesis on LTE.i am trying to implement mmse and
svd estimation but i have some probleme

this is my mmse code,could some how help me?it doesn't work.

i have my pdp and its length is L.

SNR = 1/(noiseVar);
beta=1;
power_delay_profile=[power_delay_profile zeros(1,fftlen-(L))];
power_delay_profile=fft(power_delay_profile);
power_delay_profile=diag(power_delay_profile(carriers));

% Calculate frequency correlation matrix
R_hh =power_delay_profile;
R_hy = R_hh + (((beta/SNR)* eye(length(carriers))));
% Calculate LMMSE estimate
h_LMMSE = (R_hh*inv(R_hy)) * h_LS;



please help!

this is the paper i refer
http://www.sps.ele.tue.nl/members/C.K.Ho/paper/Robust%20MMSE%20channel%20estimation%20in%20OFDM%20systems%20with%20practical%20timing%20synchronization.pdf
 | 
Pages: 1
Prev: Simulink block properties
Next: FFTW in mex (compiling errors)