码分多址通信系统中线性多用户信号检测器研究  

Research on the Linear Multiuser Signal Detector for DS CDMA Communication Systems

作　　者：全庆一[1] 胡健栋 

机构地区：[1]北京邮电大学电信工程学院

出　　处：《北京邮电大学学报》1998年第A00期15-18,共4页Journal of Beijing University of Posts and Telecommunications

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．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.

关 键 词：信号检测 DS-CDMA 多址通信系统 

分 类 号：TN914.5[电子电信—通信与信息系统] TN911.23[电子电信—信息与通信工程]