MIMO(Multiple．Input Multiple。Output)技术指的是在发射机和接收机分别

配置多根天线并同时进行数据收发处理的无线传输技术。由于它具有较高的频谱

效率和较强的抗衰落能力，因此它被普遍认为是下一代无线通信系统的关键技术

之一。本文对MIM0技术的研究分为三个部分，第一部分针对点对点的MIMO

系统，后两个部分针对点对多点的MIMO系统。-The radio transmission technology that uscs multiple transmit and multiple

receive antenIlas砒both ends of transmission is known its MIM0(Multiple．Input

Multiple-Output)．It is one of the key technologies of the next generation wireless

communications,due to its potential for high spectral e伍ciency and increased

diversity gains．Tllis dissertation includes three parts：the first one deals with the point

to point MIMO system and the last two discuss the point to multiple—point MIMO

s3，stem．