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A Multiple-Symbol Turbo Detector for Coded M-DPSK Over Time-Varying Rayleigh Flat Fading Channels

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2 Author(s)
Klenner, P. ; Dept. of Commun. Eng., Bremen Univ., Bremen ; Kammeyer, K.-D.

In the past few years, a number of publications concentrated on developing soft-in-soft-out algorithms for coded noncoherent detection, thereby enabling iterative processing and avoiding the need of channel estimation. This paper focuses on iterative noncoherent detection of convolutionally coded M- DPSK signals for time-variant Rayleigh flat fading channels without the receiver having channel state information (CSI). Specifically we show that a noncoherent soft demodulator for minimum-shift keying, which was previously reported in the literature, lends itself quite naturally for soft demodulation of DPSK. We present an extension of this receiver in terms of per- survivor processing and examine the influence of different symbol labelings.

Published in:

Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th

Date of Conference:

25-28 Sept. 2006

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