摘要
针对实际应用中的DS/CDMA系统多为多径衰落信道下的异步DS/CDMA系统情况,通过对用于AWGN信道下的同步DS/CDMA系统中的常规盲多用户检测算法的改进,使这类算法在多径衰落信道下的异步DS/CDMA系统中仍具有很好的性能。理论分析和计算机仿真结果证实了改进方法的可行性。
Aim at the case that the practical DS/CDMA system often is asynchronous DS/CDMA system in multipath fading channel, some conventional blind multi-user detection algorithms, which were applied to synchronous DS/CDMA system in AWGN channel, are modified, and to use them to asynchronous DS/CDMA system in multipath fading channel,these modified algorithms have good performance.Theoretical analysis and computer simulation confirm that these modified methods are available.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2004年第3期235-238,共4页
Journal of University of Electronic Science and Technology of China
关键词
多址干扰
盲多用户检测
异步码分多址
LS准则
multiple access inference
blind multiuser detection
asynchronous CDMA
LS criterion
