DS-CDMA通信系统中基于独立分量分析的盲多用户检测

ICA-Based Blind Multiuser Detection in DS-CDMA Communication Systems

本文研究了直接序列扩频码分多址(DS-CDMA)通信系统的多用户检测问题,提出了基于独立分量分析(ICA)方法的盲多用户检测算法,实现多用户信号的盲检测。该方法不需知道用户的扩频码就可完成多用户信号的盲检测。仿真结果验证了本文提出的方法的优良性能。

The problem of multiuser detection for direct-sequence code division multiple access (DS-CDMS) communication system is considered. A blind multiuser detection algorithm is proposed based on independent component analysis (ICA). Multiple access interference (MAI) can be suppressed based on the proposed algorithm. The advantage of the proposed algorithm is that it is able to perform multiuser detection without the users' spreading codes. Simulation results demonstrate that the proposed method offers high performance.