计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (17): 98-100.

• 网络、通信、安全 • 上一篇    下一篇

使用LDC码的BI-STCM-ID系统中的星座映射分析

赵传钢1,李睿凡2

  

  1. 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
  • 收稿日期:2008-01-21 修回日期:2008-03-31 出版日期:2008-06-11 发布日期:2008-06-11
  • 通讯作者: 赵传钢

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

ZHAO Chuan-gang1,LI Rui-fan2   

  1. 1.Department of Information Science and Technology，Beijing Forestry University，Beijing 100083，China
    2.Department of Information Engineering，Beijing University Posts and Telecommunications，Beijing 100876，China
  • Received:2008-01-21 Revised:2008-03-31 Online:2008-06-11 Published:2008-06-11
  • Contact: ZHAO Chuan-gang

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摘要： 研究了BI-STCM-ID系统中的星座映射问题。证明了在使用LDC（Linear Dispersion Code）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。

Abstract: The problem of constellation mapping in BI-STCM-ID system is investigated.It is proved that，in bit-interleaved space-time coded modulation systems with iterative decoding，when linear dispersion 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.

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