摘要
为了降低MIMO系统的射频链路成本同时保证其性能增益,该文在两跳MIMO中继系统中分析了理想和几种优化的天线选择策略,并分别在放大转发和译码转发两种中继方式下得出了系统中断概率表达式。最后,通过对不同天线选择策略下系统中断概率的数值仿真对比其系统性能,得出了适用于实际通信系统的低复杂度的最佳策略。
In order to reduce the cost of RF links in MIMO system while guaranteeing the performance gain,several ideal and optimized transmit antenna selection strategies under two-hop MIMO relaying system are analyzed in this paper.Outage probability expressions are obtained respectively in both amplify-and-forward relaying and decode-and-forward relaying systems.In the end,system performances under each strategy are compared through the results of numerical simulation,and the optimal strategies with low complexity are suggested to be applied to the actual wireless communication system.
出处
《现代电信科技》
2011年第1期61-65,共5页
Modern Science & Technology of Telecommunications
关键词
天线选择策略
译码转发
放大转发
MIMO中继系统
中断概率
transmit antenna selection
decode-and-forward
amplify-and-forward
MIMO relaying
outage probability
