基于Alamouti码的线性ZF接收器设计

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A1amouti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．

Design of Linear ZF Receiver for Alamouti Codes

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.