MIMO-OFDM不同信道估計的對比:%------------------------------------------
% 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;