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应用科学学报 ›› 2004, Vol. 22 ›› Issue (3): 303-307.

• 论文 • 上一篇    下一篇

基于线性变换的MMSE盲多用户检测

胡艳军1,2, 范清清2, 朱近康1   

  1. 1 中国科学技术大学个人通信与扩频实验室 安徽合肥 230027;
    2 安徽大学电子工程与信息科学系 安徽合肥 230039
  • 收稿日期:2003-05-16 修回日期:2003-09-03 出版日期:2004-09-30 发布日期:2004-09-30
  • 作者简介:胡艳军(1967-),女,安徽淮南人,教授,博士;朱近康(1943-),男,四川内江人,教授,博导.
  • 基金资助:
    面向21世纪教育振兴行动计划;安徽省自然科学基金(03042208)资助项目

Blind Multiuser Detection Based on Linear Transform and MMSE for CDMA Systems

HU Yan-jun1,2, FAN Qing-qing2, ZHU Jin-kang1   

  1. 1. Personal Communication Network & Spread Spectrum Lab University of Science and Technology of China, Hefei 230027, China;
    2. Department of Electronics Engineering and Information Science, Anhui University, Hefei 230039, China
  • Received:2003-05-16 Revised:2003-09-03 Online:2004-09-30 Published:2004-09-30

PDF

57

被引次数

5

摘要： 提出了一种基于线性变换和预测的盲多用户检测方法,可同时消除MAI和ISI.它仅利用了某特定用户的扩频序列,先进行线性变换和线性预测,再进行MMSE检测.由于不进行直接信道估计,避免了信道估计误差,使算法的准确性得到了提高.

关键词: 码分多址, 盲多用户检测, 最小均方误差检测, 线性变换

Abstract: A blind multiuser detector based on linear transform and prediction for CDMA systems is proposed. It can eliminate MAI and ISI simultaneously. Using only the spreading sequences of the desired user, we first process the received signals by linear prediction. Next, MMSE detectors are obtained without explicit channel estimation. This avoids any channel estimation error, and the resulting method is more accurate.

Key words: MMSE, CDMA, blind multiuser detection, linear transform

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