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多载波码分多址(M C-CDMA)系统能够支持无线通信业务中的多媒体业务,因此它是很有发展前景的。但是,M C-CDMA的系统性能受到单用户多码自相干和多用户相干的影响。为了解决这种问题,本文引入了一种最小均方误差解相干(MM SE-SIC)接收机,对多用户多径传输情况下的M C-CDMA系统进行了一定的改进。
Multi-carrier code division multiple access (MC-CDMA) systems are capable of supporting multimedia services in wireless communications and are therefore promising. However, the system performance of M C-CDMA is affected by single-user multi-code self-coherence and multi-user coherence. In order to solve this problem, this paper introduces a receiver of least mean square error coherent (MM SE-SIC) to improve M C-CDMA system under multi-user multipath transmission.