应用科学学报 ›› 2003, Vol. 21 ›› Issue (1): 9-12.

• 论文 • 上一篇    下一篇

一种新的CDMA系统低扩频比下的低复杂度接收机

曾嵘, 赵春明   

  1. 东南大学移动通信国家重点实验室 江苏 南京 210096
  • 收稿日期:2001-11-14 修回日期:2002-02-28 出版日期:2003-03-10 发布日期:2003-03-10
  • 作者简介:曾嵘(1976-),男,江苏淮安人,博士生;赵春明(1959-),男,江苏江都人,教授,博导.
  • 基金资助:
    国家863资助项目(863-317-03-01-02-04-20/MII-C3G-02-04-002)

A Novel Low Complexity Receiver in the Low Spreading Factor for the CDMA System

ZENG Rong, ZHAO Chun-ming   

  1. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
  • Received:2001-11-14 Revised:2002-02-28 Online:2003-03-10 Published:2003-03-10

摘要: 针对降低路径间干扰,将传统的Rake接收机同均衡器相结合,提出了一种CDMA系统低扩频比下的低复杂度接收机结构.计算机仿真表明该Equalizer-Rake接收机同传统的Rake接收机和同等复杂度的chip均衡器相比性能有较大改善.

关键词: 路径间干扰, 低扩频比, Equalizer-Rake接收机

Abstract: In the CDMA system, the inter-path interference (IPI) becomes very serious when the spreading factor is low. In order to decrease IPI, a low complexity receiver structure in the low spreading factor for the CDMA system which combines the conventional Rake with chip equalizer is proposed. Computer simulation shows that the Equalizer-Rake receiver performs better than Rake and chip equalizer with equal complexity.

Key words: Equalizer-Rake receiver, inter-path interference (IPI), low spreading factor

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