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OFDM(Orthogonal Frequency Division Multiplexing)和MIMO(Multiple-Input-Multiple-Output)技术是解决未来宽带无线通信系统中多径衰落信道和带宽效率两大技术难点的关键技术,文章研究了MIMO—OFDM系统及常用的空时编码方式的性能特点,并对空时编码技术与MIMO—OFDM系统相结合对通信系统性能的影响作了深入的研究。
OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple-Input-Multiple-Output) are the key technologies to solve the two technical difficulties of multipath fading channel and bandwidth efficiency in future broadband wireless communication systems. In this paper, MIMO-OFDM system and The commonly used performance of space-time coding method, and the effect of the combination of space-time coding technology and MIMO-OFDM system on communication system performance is deeply studied.