摘要
该文研究了寻找正交空时分组码输出信号最大比率合并组合形式的配方方法,证明了一般正交空时分组码都可以采用配方的方法得到最大接收比率的组合形式。由于正交性,各输出支路可以独立地进行极小距离判决译码,其译码性能与用从各接收天线得到的接收矢量直接进行极大似然译码的性能完全相同,而译码复杂度却大为降低。
A squaring method to find the maximal-ratio receive combining scheme of the orthogonal space-time block codes is presented. Furthermore, it is proved that this method can be used as a general method for the orthogonal space-time block codes. Considering the orthogonality, the minimum distance decisions for each output branch can be made respectively. The performance using this method is the same as that using the maximum likelihood decoding criterion while the complexity of decoding is much lower.
出处
《电子与信息学报》
EI
CSCD
北大核心
2002年第4期473-478,共6页
Journal of Electronics & Information Technology
基金
国家自然科学基金(69872008)
