满速率、满分集空时分组码的研究  

A Study of Full Rate Full Diversity STBC

作　　者：车正泰[1] 啜钢[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《北京邮电大学学报》2008年第5期65-69,共5页Journal of Beijing University of Posts and Telecommunications

摘　　要：针对正交空时分组码(O-STBC)达不到满速率的情况,基于Tarokh的空时编码设计准则,提出了一种新的满速率准正交空时编码(Q-O-STBC)矩阵,再经过适当的调制星座旋转得到满分集Alamouti空时星座旋转(A-STCR)分组码.介绍了A-STCR编码的编码结构与译码方法,证明了该编码的有效性.对A-STCR编码的性能进行了Matlab仿真。并与其他空时分组码作了比较,证实了A-STCR分组码的性能更优越.Focusing on the case that existing orthogonal space-time block codes （O-STBC） have not achieve full rate, a type of novel transmit matrix for quasi-orthogonal space-time block code （Q-O- STBC） is proposed based on Tarokh＇s design criterion of space-time code. A full diversity space-time constellation-rotating （A-STCR） block code is obtained through appropriate modulation constellation rotating. It is introduced the encoding structure and decoding principle of A-STCR code. The validity of this coding is proved. The performance merit of A-STCR block codes is confirmed by Matlab simulations and compared with other space-time block codes.

关 键 词：空时分组码 满速率 满分集 星座旋转 

分 类 号：TN911.22[电子电信—通信与信息系统]