华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (12): 17-21.

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衰落信道中的串并混合型多用户检测算法

王正茂, 叶 梧, 冯穗力, 等   

  1. 华南理工大学 电子与通信工程系‚广东 广州510640
  • 出版日期:2003-12-20 发布日期:2022-07-01
  • 通信作者: 王正茂(1968-)‚男‚博士生‚主要从事多用户检测研究.
  • 作者简介:王正茂(1968-)‚男‚博士生‚主要从事多用户检测研究.

Mixed Seria-l parallel Mult-i user Detection Algorithm in Fading Channels

Wang Zheng-mao,Y e Wu, Feng Sui li,et al   

  1. Dept.of Electronic and Communication Engineering‚South China Univ.of Tech.‚Guangzhou510640‚China
  • Online:2003-12-20 Published:2022-07-01
  • Contact: 王正茂(1968-)‚男‚博士生‚主要从事多用户检测研究.
  • About author:王正茂(1968-)‚男‚博士生‚主要从事多用户检测研究.

摘要: 提出了一种基于 RLS 算法的新的决策反馈串并混合型多用户检测算法.在衰落 信道条件下‚针对系统数据传输速率的不同分成考虑码间干扰(ISI)和不考虑码间干扰两 种情形对算法进行了理论分析‚给出了一个关于误码率的理论计算公式‚并进行了计算机 仿真.所得结果表明‚该算法具有较高的准确性‚误码率较低‚成本较为低廉‚有一定的实 用价值. 

关键词: DS-CDMA 系统, 多址干扰, 多用户检测

Abstract: A new mixed seria-l parallel mult-i user detection algorithm with decision feedback was proposed on the basis of RLS algorithm.Theoretical analyses of the new algorithm in fading channels were carried out‚where the system data transfer rates were divided into two cases: one is related to ISI‚the other is not.A theoretical formula for BER (Bit Error Rate) calculation was then presented and the simulation of the algorithm was performed.The results show that the algorithm proposed here is of high correctness and low BER with low cost‚thus making the algorithm practicable. 

Key words: DS-CDMA system, mult-i access interference, mult-i user detection

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