Bruhat分解、Weyl群在酉空时码中的应用  

Application of Bruhat Decomposition and Weyl Group in Unitary Space-time Coding

作　　者：程智慧 王军生 张勇 练岚香[3] 雷向勇 

机构地区：[1]北京1481信箱,北京102442 [2]中化国际招标有限公司,北京100045 [3]北京理工大学,北京100083

出　　处：《通信技术》2010年第2期40-42,45,共4页Communications Technology

摘　　要：运用了Bruhat分解和Weyl群概念基础上,通过搜寻最大平均欧氏距离的方法,提出了一种新的差分全分集酉子群调制方式,给出了基于四天线系统酉子群的PSK酉空时码近似优化,并列举了若干PSK酉时空编码的实例。仿真表明,在准静态瑞利衰落信道下,近似酉空时优化码相对于循环码性能更为优异。By using Bruhat Decomposition and based on the concept of Weyl Group, and through searching the maximum average Euclidean distance, a new differential full-diversity unitary sub-group modulation is proposed, and approximate optimization of PSK unitary space-time coding based on four antenna unitary sub-group system is given, some examples of PSK unitary space-time coding are also cited. Simulation results show that the approximate optimization unitary space-time coding has a better performance than cyclic-code in quasi-static Rayleigh fading channel.

关 键 词：Bruhat分解 WEYL群 差分酉空时调制 

分 类 号：TN91[电子电信—通信与信息系统]