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In this paper we propose a new approach to blind source separation that exploits the cyclostationary nature of the sources typically found in communication applications. A new adaptive algorithm is proposed that simultaneously utilizes Higher Order Statistics (HOS) and cyclic moments. The approach enables exploitation of periodicities embedded in the sources such as the carrier frequency or the symbol...
This paper addresses the problem of blind Multiple Access Interference (MAI) suppression in Direct Sequence (DS) Code Division Multiple Access (CDMA) systems. The Constant Modulus (CM) criterion is used to devise a blind adaptive DS CDMA receiver that achieves the same performance as the Minimum Mean Square Error (MMSE) receiver for high values of the Signal to Noise Ratio (SNR). The main limitation...
This paper introduces an iterative space-time soft estimator (ISSE) that performs joint channel estimation and soft data detection in time-varying multiple-input multiple-output channels. The ISSE alternates channel estimation, taking explicitly into account the channel variability, and soft data detection. We suggest to implement the latter stage as a decision feedback (DF) structure consisting of...
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