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Low-complexity blind multiuser detection of DS-CDMA signal in dispersive channels
Authors:Zhiqiang Lin  Xiaohu You  Yong Wang
Affiliation:National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096
Abstract:The problem of blind multiuser detection in dispersive channels of Code-Division Multiple-Access (CDMA) in the presence of both Multiple-Access Interference (MAI) and In-terSymbol Interference (ISI) is considered. In practice, it is showed that by incorporating the desired user's signature waveform and the auxiliary vector, the information of the user can be identified using the suboptimal subspace method. The major contribution of this paper is to propose a minimum-mean-square-error detector with the suboptimal subspace-based blind technique for joint suppression of MAI and ISI in the dispersive CDMA channels.
Keywords:Code-division multiple-access  Multiuser detection  Multiple-access interference  Intersymbol interference
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