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Space-Time Blind Multiuser Detection for Multiuser DS-CDMA and Oversampled Systems

机译：多用户DS-CDMA和过采样系统的空时盲多用户检测

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摘要

Novel space-time blind multiuser detection method for multiuser DS-CDMA and oversampled systems is presented. To achieve signal recovery, Khatri-Rao product structure of the space-time channel matrix of received signals and rank-1 projection strategy are exploited. Two blind signal detection algorithms based on Khatri-Rao product decomposition are proposed. Uniqueness of the Khatri-Rao decomposition is discussed. Simulation results show that the proposed algorithms have performance close to the non-blind Zero Forcing algorithm and still work well in the case of only few antennae in the receiving end.
机译：提出了一种针对多用户DS-CDMA和过采样系统的空时盲多用户检测方法。为了实现信号恢复，利用了接收信号的时空信道矩阵的Khatri-Rao乘积结构和rank-1投影策略。提出了两种基于Khatri-Rao乘积分解的盲信号检测算法。讨论了Khatri-Rao分解的唯一性。仿真结果表明，所提出的算法性能接近于非盲零强迫算法，并且在接收端天线很少的情况下仍能很好地工作。

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