说明：  MIMO-OFDM系统链路仿真，其中收发天线数为2x2，OFDM符号子载波数为64，MIMO检测算法采用迭代检测算法，有助于理解MIMO-OFDM系统，以及迭代接收机原理
(MIMO-OFDM system link emulation, wherein the number of transceiver antenna 2x2 OFDM symbol number of subcarriers is 64, the MIMO detection algorithms using iterative detection algorithm helps to understand the MIMO-OFDM system, and the iterative receiver principle)