摘要
当使用两个发射天线发射2个信号,而接收器只有一个接收天线时,Alamouti码可以实现2N个拥有全速率的分集度.提出基于Alamouti码的简易线性ZF接收器.对于不等能量星座,基于Alamouti码的简易线性ZF接收器与基于Alamouti码的ML接收器相比,计算复杂度更小.而简易线性ZF接收器与ML接收器的性能差异非常小.
When Alamouti codes transmits two symbols in two time intervals by two transmit antennas and the receiver has N receive antenna, it can achieve the diversity order of 2N with full data rate. In this paper, we propose a simple linear ZF receiver for Alamouti codes. For Alamouti codes and unequal energy constellations, the proposed simple linear ZF receiver can save more computational complexity than the ML receiver. The performance difference between the proposed simple linear ZF receiver and the ML receiver is trivial.
出处
《怀化学院学报》
2012年第8期31-35,共5页
Journal of Huaihua University
关键词
Alamouti码
ML接收器
线性ZF接收器
Alamouti Code
ML （maximum likelihood） receiver
linear ZF （zero forcing） receiver
