应用科学学报 ›› 2006, Vol. 24 ›› Issue (4): 341-344.

• 论文 • 上一篇    下一篇

LSCM_SUB在半盲多用户检测器中的应用

刘胜美1,2, 赵春明1, 李灿伟2   

  1. 1. 东南大学移动通信国家重点实验室, 江苏南京 210096;
    2. 南京邮电大学通信与信息学院, 江苏南京 210003
  • 收稿日期:2005-03-31 修回日期:2005-11-07 出版日期:2006-07-31 发布日期:2006-07-31
  • 作者简介:刘胜美,博士生,研究方向:多用户检测技术、OFDM中峰均比问题,E-mail:smliu@njupt.edu.cn;赵春明,教授,博导,研究方向:扩频通信、编解码等,E-mail:cmzhao@seu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(60496311);国家自然科学基金资助项目(60472104);江苏省高校自然科学计划研究项目资助课题(104KJB510094)

LSCM_SUB Algorithm Applied to Semi-blind Multi-user Detection

LIU Sheng-mei1,2, ZHAO Chun-ming1, LI Can-wei2   

  1. 1. The National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China;
    2. The Mobile Communications Laboratory, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2005-03-31 Revised:2005-11-07 Online:2006-07-31 Published:2006-07-31

摘要: 提出了应用于CDMA上行链路多用户检测器中的半盲LSCM_SUB算法.它首先利用非盲算法消除所有小区内干扰用户的影响,接着再利用LSCM_SUB算法抵消剩余的干扰.仿真实验表明,与盲LSCM算法及解相关算法相比较,该SB_LSCM_SUB算法的性能明显优于其他几种经典的盲恒模算法及解相关算法.

关键词: LSCMA, 多用户检测, SB_LSCM_SUB, LSCM_SUB

Abstract: The semi-blind LSCM-SUB (SB-LSCM-SUB) algorithm applied in the semi-blind MUD (Multi-user detection) of CDMA is studied.Compared to the blind CM algorithm and the decorrelation algorithm, the proposed semi-blind LSCM-SUB algorithm exhibits better SIR and BER performance, and is more robust when the system is heavily loaded.

Key words: MUD, SB-LSCM-SUB, LSCM-SUB, LSCMA

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