简单的MIMO模拟
假定QPSK，ML解码（SM ZF检测器除外）。

mrc.m - 最大比例组合

stc.m - 具有1和2个接收天线的Alamouti空时分组码

bf.m - 特征波束形成

sm.m - 空间复用2x2（ML解码和次优逼迫）

简单的OFDM仿真
模拟保护带，用于信道估计的循环前缀前导码符号(Simple MIMO simulations
Assumes QPSK, ML decoding (except SM ZF detector).

mrc.m - maximal ratio combining

stc.m - Alamouti space-time block code with 1 and 2 receive antennas

bf.m - Eigen-beamforming

sm.m - Spatial multiplexing 2x2 (both ML decoding and suboptimal zero forcing)

Simple OFDM simulation
Simulates guard band, cylic prefix Preamble symbol used for channel estimation)