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A Systematic Approach to Noncoherent Detection for DPSK Modulation in Multiuser Correlated Diversity Rayleigh Fading Channels

By et al. Mahesh K. Varanasi


A correlated diversity Rayleigh fading (CDRF) channel models inter-diversity fading and signal correlations. This paper considers the multiuser CDRF channel wherein several users transmit information simultaneously using signals with inter-diversity as well as inter-user correlations. Each user employs DPSK modulation. Besides allowing simple noncoherent detection without channel estimation algorithms, DPSK is a modulation method of choice when the coherence time of the channel is too short to estimate the fading coefficients accurately. Until recently, the multiuser detectors suggested for the multiuser CDRF channel have been of the post-decorrelative type with ad-hoc equal-gain combining. A systemati

Year: 1998
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