摘要
MIMO技术与空时编码结合后可以有效抵消衰落,提高频谱效率。MIMO系统的信道容量分析表明,使用多个发射天线和接收天线,可以成倍的提高系统的信道容量,表明MIMO系统空间分集性能良好。对比了MIMO系统在用空时分组码收时发天线数不同和调制方式不同时系统的误码率,仿真结果表明空时分组码可以给系统带来更好的的发射和接收分集性能。
The combination of multiuser MIMO technology and space time coding Can effectively counteract fading, Improving spectrum efficiency. The analysis of the channel capacity of MIMO system shows that, the use of multiple transmit antennas and receive antennas, system capacity can be exponentially increased.lt shows that the spatial diversity of MIMO system is good.Compared the MIMO systems with space-time block codes different sending and transmitting antenna number and different modulation mode to bit error rate performance of the system, The simulation results show that space-time block codes can bring better transmit and receive diversity perfon^aance of the system.
出处
《电子世界》
2018年第2期120-121,共2页
Electronics World
关键词
多输入多输出技术
空时分组码
信道容量
multiple-input multiple-output systems： space-time block codes： channel capacity
