摘要
本文提出了一种在子载波分组上进行空时编码的随机信号映射MIMOOFDM系统。采用已有的快衰落信道上的空时码在每个分组上编码,随机映射后在多个天线上发送,接收端就能够获得大部分的空间和频率分集。仿真表明系统在MIMO多径衰落信道中能够获得好的性能。
A system using STTC to code on subcarrier groups in RSM MIMO OFDM is proposed. Using STC for fast fading channels to code on each subcarrier groups, random signal mapping codes are transmitted on every antenna, and then the receiver end can collect a large part of the space diversities and the frequency diversities. Simulation results show that the system have good performance on multi-path MIMO fading channels.
出处
《电路与系统学报》
CSCD
北大核心
2008年第4期130-134,共5页
Journal of Circuits and Systems
基金
自然基金重大项目资助课题(60496311)
