MIMO-OFDM不同信道估计的对比

MIMO-OFDM不同信道估计的对比:%------------------------------------------
% EE359 final project, Fall 2002
% Channel estimation for a MIMO-OFDM system
% By Shahriyar Matloub              
%------------------------------------------

clear all;
%close all;
i=sqrt(-1);
Rayleigh=1;
AWGN=0;                             % for AWGN channel
MMSE=0;                             % estimation technique
Nsc=64;                             % Number of subcarriers
Ng=16;                              % Cyclic prefix length
SNR_dB=[0 5 10 15 20 25 30 35 40];  % Signal to noise ratio
Mt=2;                               % Number of Tx antennas
Mr=2;                               % Number of Rx antennas
pilots=[1:Nsc/Ng:Nsc];              % pilot subcarriers
DS=5;                              % Delay spread of channel
iteration_max=200;