Acta Metallurgica Sinica(English letters) ›› 2010, Vol. 17 ›› Issue (4): 42-46.doi: 10.1016/S1005-8885(09)60485-4

• Wireless • 上一篇    下一篇

Improved QO-STBC for three and four transmit antennas

贾明儒1,肖丽萍2   

  1. 1. 燕山大学
    2.
  • 收稿日期:2009-05-11 修回日期:2010-02-03 出版日期:2010-08-30 发布日期:2010-08-31
  • 通讯作者: 贾明儒 E-mail:jiamingru1998@sina.com

Improved QO-STBC for three and four transmit antennas

  1. College of Information Science and Engineering, Yanshan Universitys, Qinhuangdao 066004, China
  • Received:2009-05-11 Revised:2010-02-03 Online:2010-08-30 Published:2010-08-31

摘要:

A new quasi-orthogonal space-time block code (QO-STBC) based on ABBA code with lower decoding complexity and higher bit error statistics (BER) performance was proposed by U. Park recently, which can obtain full transmission rate and full diversity. In this article, the authors proposed an improved U. Park scheme based on rotational ABBA code. For eliminating the interference terms resulting from neighboring signals during signal detection, two different matrixes are used. And independent decoding can be realized when maximum-likelihood decoding at the receiver is used. Simulation results demonstrate that the BER performance is improved dramatically without increasing the decoding complexity compared with U. Park scheme.

关键词:

independent decoding, multiple antennas, QO-STBC

Abstract:

A new quasi-orthogonal space-time block code (QO-STBC) based on ABBA code with lower decoding complexity and higher bit error statistics (BER) performance was proposed by U. Park recently, which can obtain full transmission rate and full diversity. In this article, the authors proposed an improved U. Park scheme based on rotational ABBA code. For eliminating the interference terms resulting from neighboring signals during signal detection, two different matrixes are used. And independent decoding can be realized when maximum-likelihood decoding at the receiver is used. Simulation results demonstrate that the BER performance is improved dramatically without increasing the decoding complexity compared with U. Park scheme.

Key words:

independent decoding, multiple antennas, QO-STBC