码分多址通信系统中线性多用户信号检测器研究

北京邮电大学学报 ›› 1998, Vol. 21 ›› Issue (s): 15-18.

码分多址通信系统中线性多用户信号检测器研究

全庆一, 胡健栋

北京邮电大学电信工程学院, 北京 100876

出版日期:1998-09-10

Research on the Linear Multiuser Signal Detector forDS-CDMA Communication Systems

Quan Qingyi, Hu Jiandong

School of Telecommunication Engineering,Beijing University of Posts and Telecommunications, Beijing 100876

Online:1998-09-10

摘要/Abstract

摘要： 提出了通过非线性优化求解线性多用户检测器中线性变换矩阵的一种方法, 并分析了基于这种线性变换矩阵的检测器性能.计算结果表明, 在理想功率控制条件下, 这种检测器的误比特率小于传统多用户信号检测器和解相关多用户信号检测器的误比特率; 在抗远-近效应方面, 这种检测器强于传统检测器, 而弱于解相关检测器.

关键词: 直接序列扩频多址连接, 多用户信号检测器, 信号检测

Abstract: A method of calculating the matrix in linear multiuser signal detector is presented , and the performance of the detector which uses the above-mentioned method of generating the matrix is analysed. Numerical results show that 1) under ideal power control, in aspect of bit-error rate, the optimum linear multiuser signal detector is better than the conventional and decorrelated multiuser signal detectors; 2) in aspect of “near-far” resistance, the optimum linear multiuser signal detector is better than the conventional one, and is worse than the decorrelated detector.

Key words: DS-CDMA communications, multiuser signal detectors, signal detection

中图分类号:

TN929.5

全庆一, 胡健栋. 码分多址通信系统中线性多用户信号检测器研究[J]. 北京邮电大学学报, 1998, 21(s): 15-18.

Quan Qingyi, Hu Jiandong. Research on the Linear Multiuser Signal Detector forDS-CDMA Communication Systems[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 1998, 21(s): 15-18.

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