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DPSK Receiver with Implicit Diversity for the Linearly Frequency-Selective Rayleigh Fading Channel

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Abstract

A simple DPSK receiver for the linearly frequency-selective fading channel is presented. The channel is modelled as an f-power series truncated to the first two terms [1], [2]. Two specifically designed time invariant filters are used to remove the channel-induced ISI and separate the two implicit diversity branches. The received samples from each filter are then differentially decoded and linearly combined. Analytical and simulation results for binary DPSK demonstrate that this receiver shows significant improvement over the conventional receiver, which uses matched filtering and a product demodulator.

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Authors and Affiliations

  1. Department of Electrical and Electronic Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand

    Wing Seng Leon & Desmond P. Taylor

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  1. Wing Seng Leon
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  2. Desmond P. Taylor
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Correspondence to Desmond P. Taylor.

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Leon, W.S., Taylor, D.P. DPSK Receiver with Implicit Diversity for the Linearly Frequency-Selective Rayleigh Fading Channel. International Journal of Wireless Information Networks 9, 275–286 (2002). https://doi.org/10.1023/A:1021056029878

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