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满发送分集度空时编码方法

刘 陈1 ，李跃宏2 ，吴镇扬1
  

  1. 1东南大学 无线电工程系,江苏 南京，210096
    2南京邮电学院 电子工程系，江苏 南京，210003
  • 收稿日期:2004-10-04 修回日期:2004-11-26 出版日期:2006-01-31 发布日期:2006-01-31

A Family of Full Transmit Diversity Space-Time Codes

LIU Chen1, LI Yue-hong2, WU Zhen-yang1
  

  1. 1Department of Radio Engineering, Southeast University, Nanjing, 210096, China
    2 Nanjing University of Posts and Telecommunications, Nanjing, 210003, China
  • Received:2004-10-04 Revised:2004-11-26 Online:2006-01-31 Published:2006-01-31

被引次数

3

摘要： 提出了一种新的空时编码方法——对角块正交代数空时（DBOAST）分组码，该空时分组码能提供1符号/信道利用的符号传输率。介绍了新提出的DBOAST分组码的编码结构与解码方法；证明了对于准静态和快衰落信道DBOAST分组码能达到满发送分集度，具有比DAST分组码更大的编码增益；分析了含DBOAST分组码的等价信道容量；对DBOAST分组码的性能进行了仿真，并与其它空时分组码做了比较，证实了DBOAST分组码的性能优越性。

关键词: 无线通信, 多输入多输出系统, 空时编码, 分集度, 容量

Abstract:

A new family of space-time block codes is constructed, called diagonal block orthogonal algebraic space-time (DBOAST) block codes. It can transmit at a normalized rate of 1 symbol per channel use. It is proved that they can achieve the full transmit diversity with a larger coding gain than DAST block codes over quasi-static or fast fading channels. The capacity of an equivalent channel using the proposed code is analyzed. The performance merit of DBOAST block codes is confirmed by Monte Carlo simulations and compared with other space-time block codes.

Key words: wireless communication, MIMO systems, space-time codes, diversity, capacity