摘要
在得到莱斯衰落下正交空时分组码接收信噪比的基础上,分析了在莱斯衰落信道条件下引入正交空时分组码的多天线系统的符号差错性能。理论分析及仿真结果表明在接收天线数量一定的情况下,增加发送天线的数量可以带来更大的分集增益,莱斯系数均值对系统的影响是一致的。
On the basis of studying the received signal - to - noise rate of orthogonal space - time block codes over Rician fadeing environment,the symbol error of the multi- antenna system is analyzed in the paper, Theroy analysis and simulations show that the diversity gain increases when the number of transmit antenna increase and the number of receiver antenna remains unchanged and the mean of Ricain coefficient have unalterable effect on the system.
出处
《现代电子技术》
2007年第1期26-28,共3页
Modern Electronics Technique
关键词
空时分组码
莱斯衰落
分集技术
信噪比
space - time block codes
Rician fading
diversity technology
