摘要
在多径衰落环境中,MIMO系统能够极大地提高无线通信系统的容量和可靠性,发射/接收天线选择方法能以很小的性能损失换取射频成本的大幅度降低,使MIMO系统不完全受射频成本的限制.为快速选择出使系统容量最优的发射/接收天线子集,该文提出一种新的快速简单的天线选择算法.仿真结果表明,该算法降低了计算复杂度,在获得很高的系统容量的同时,大大降低了系统误码率.
Multiple Input Multiple Output systems can greatly improve the capacity and reliability of wireless communication in multi-path fading environments. The transmission/receiving antenna selection method can substantially reduce the RF cost with a little system performance loss, thus eliminating the limit of RF cost to MIMO system. A fast antenna selection algorithm was proposed in order to quickly select transmission/receiving antenna subset with optimal system capacity. Simulation results indicate that the proposed algorithm not only decreases the computational complexity and bit error rate（ BER）, but also obtains high system capacity.
出处
《应用科技》
CAS
2008年第1期40-43,共4页
Applied Science and Technology
关键词
MIMO
信道容量
递减算法
CBM算法
MIMO
channel capacity
decremental selection algorithm
CBM selection algorithm
