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应用科学学报 ›› 2005, Vol. 23 ›› Issue (6): 573-576.

• 论文 • 上一篇    下一篇

一种用于频率选择性信道的高速率单载波空时分组码系统

杨绿溪, 钱轶群, 杨兵   

  1. 东南大学无线电工程系, 江苏南京 210096
  • 收稿日期:2004-06-29 修回日期:2004-11-22 出版日期:2005-11-30 发布日期:2005-11-30
  • 作者简介:杨绿溪(1964-),男,安徽桐城人,教授,博导,E-mail:lxyang@seu.edu.cn
  • 基金资助:
    国家自然科学基金(60272046);重大基金(60496310);国家"863"高技术研究发展计划资助项目(2002AA123031);教育部博士点基金(20020286014);江苏省自然科学基金(BK2005061)资助项目

High-Rate Single-Carrier Space-Time Block Coding for Frequency-Selective Fading Channels

YANG Lu-xi, QIAN Yi-qun, YANG Bing   

  1. Department of Radio Engineering, Southeast University, Nanjing 210096, China
  • Received:2004-06-29 Revised:2004-11-22 Online:2005-11-30 Published:2005-11-30

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96

被引次数

3

摘要： 针对4根发射天线的宽带无线通信系统,提出一种两路复用的单载波空时分组编码方案.每一路信号均利用2根发射天线并采用满速率的正交空时分组码.本编码方案的码率为2,且只要求信道在两个连续的块内保持恒定.在接收端需要2根接收天线以分离两路空时编码信号,采用的干扰抵消和频域均衡算法具有较低的计算复杂度,且两路信号的检测均实现了满发射分集增益.

关键词: 发射分集, 空时分组编码, 单载波频域均衡, 干扰抵消

Abstract: For broadband wireless communication systems with 4 transmitting antennas, a two-stream multiplexed space-time block-coding scheme is proposed.Each stream employs two transmitting antennas and adopts full-rate orthogonal space-time block coding.The proposed coding scheme achieves a code rate of 2 and requires the channels to be stationary over only two consecutive blocks.Two antennas are needed at the receiver to separate the two space-time block coded streams.Interference cancellation and frequency-domain equalization at the receiver have low complexity while offering full transmission diversity gain for both streams.

Key words: space-time block coding (STBC), transmit diversity, single-carrier frequency-domain equalization (SC-FDE), interference cancellation

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