使用TAST码的BI-STCM-ID系统中的星座映射分析  

Analysis of constellation labeling for bit-interleaved space time coded modulation with TAST code

作　　者：赵传钢[1] 李睿凡[2] 

机构地区：[1]北京林业大学信息学院,北京100083 [2]北京邮电大学信息工程学院,北京100876

出　　处：《计算机应用》2008年第B06期104-106,共3页journal of Computer Applications

基　　金：国家科技支撑项目(2006BAD10A03)

摘　　要：研究了BI-STCM-ID系统中的星座映射问题。证明了在使用TAST空时编码方案的BI-STCM-ID系统中,基于最大化编码增益的高维星座映射设计优化问题等价于基于最大化欧式距调和均值的一维星座映射设计优化问题。The problem of constellation mapping in BI-STCM-ID system is investigated. It is proved that, in bitinterleaved space-time coded modulation systems with iterative decoding, when threaded algebraic space-time code is used, the problem of optimization of multi-dimensional constellation based on the criterion of maximization of coding gain can be reduced to that of optimization of one dimensional constellation based on the criterion of maximization of harmonic mean of Euclidean distance of constellation point.

关 键 词：空时编码调制 星座映射 TAST码 

分 类 号：TN911.22[电子电信—通信与信息系统]