J4 ›› 2009, Vol. 36 ›› Issue (3): 563-572.

• 研究论文 • 上一篇    下一篇



  1. (1. 哈尔滨工程大学 信息与通信工程学院,黑龙江 哈尔滨  150001;
    2. 中国电子科技集团公司第54所,河北 石家庄  050081)
  • 收稿日期:2008-03-28 修回日期:2008-06-26 出版日期:2009-06-20 发布日期:2009-07-04
  • 通讯作者: 解武
  • 基金资助:


Design and performance analysis of quasi-orthogonal space-time block codes for four antennas

XIE Wu1;CAO Jia-nian1;WANG Li-ying2

  1. (1. School of Infor. and Comm. Eng., Harbin Eng. Univ., Harbin  150001, China;
    2. The 54th Research Institute of CETC, Shijiazhuang  050081,  China)
  • Received:2008-03-28 Revised:2008-06-26 Online:2009-06-20 Published:2009-07-04
  • Contact: XIE Wu



关键词: MIMO系统, 准正交空时分组码, 最大似然译码, QR分解


This paper analyzes the structure and characteristics of several types of quasi-orthogonal space-time block codes (QSTBC). It proposes two new methods for QSTBC for four antennas which enrich the family of QSTBC. Experimental results indicate that the two new QSTBC have good performance as in TBH and Jafarkhani cases, while the decoding complexity is the same as that of other QSTBC. This paper has compared the Maximum Likelihood (ML) decoding algorithm and QR decomposition decoding algorithm for the new QSTBC. Simulation results indicate that the QR decoding algorithm has good performance and can reduce the computation complexity.

Key words: MIMO systems, QSTBC, Maximum Likelihood decoding, Matrix QR decomposition


  • TN911.22