System performance research and analysis of MIMO-OFDM based on space-time block codes

This paper gives the system model and the STBC encoding and decoding schemes in MIMO-OFDM system according to STBC coding theories. It focuses on researching and simulating the MIMO-OFDM system's performances, which had added STBC. We had analyzed and simulated BER performance of the system with different number of transceiver antennas. At the same time, BER performance of the system with different modulation modes such as QPSK, 8PSK, and 16QAM also was analyzed and simulated. Finally, conclusions are given.