北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2006, Vol. 29 ›› Issue (5): 71-74.doi: 10.13190/jbupt.200605.71.wangqx

• 研究报告 • 上一篇    下一篇

MIMO-CDMA系统中改进的分层空频接收方案

王启星, 李宝金, 常永宇, 杨大成   

  1. 北京邮电大学 电信工程学院, 北京 100876
  • 收稿日期:2005-09-01 修回日期:1900-01-01 出版日期:2006-10-30 发布日期:2006-10-30
  • 通讯作者: 王启星

Improved Layered Space-Frequency Scheme
for MIMO-CDMA Systems

WANG Qi-xing, LI Bao-jin, CHANG Yong-yu, YANG Da-cheng   

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2005-09-01 Revised:1900-01-01 Online:2006-10-30 Published:2006-10-30
  • Contact: WANG Qi-xing

摘要:

为有效克服多输入多输出(MIMO-CDMA)系统中的干扰,提出了一种用于单载波MIMO-CDMA系统的分层空频接收方案。传统的分层接收方案由于进行大量的伪逆和排序运算,使得复杂度很高以至于难以实现。根据实际情况,该改进方案充分利用均衡系数的计算特性,只进行一次伪逆和一次排序运算。仿真结果从系统性能和复杂度上证实该方案的有效性。

关键词: 多输入多输出, 分层空频接收方案, 单载波频域均衡器

Abstract:

Multiple input multiple output architecture is one of the most promising techniques to improve the quality and capacity of future wireless communication systems. In this paper we proposed an improved layered space-frequency scheme for the broadband MIMO-CDMA systems. The proposed scheme opens the way of detecting multi-antenna signals in the frequency domain. Simulation results show that the proposed layered space-frequency scheme can obtain better tradeoff between performance and complexity than conventional ones.

Key words: multiple input multiple output, layered space-frequency scheme, single carrier frequency domain equalizer

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