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2005 Robust, FFT-Based, Single Carrier, Multiuser, SDPSK/DPSK Block Demodulation in the Presence of Symbol Synchronization Jitter
Ahmad A. Masoud
Commun. Inf. Syst. 5(3): 289-304 (2005).

Abstract

In this paper a robust, single carrier, multi-user, DSP-based implementation of an OFDM, differential phase shift keying (DPSK) block demodulator is suggested. It is shown that a direct, DSP-based implementation of the above system using a single FFT symbol is highly susceptible to artifacts induced by symbol timing errors (symbol synchronization jitter, SSJ). A dual symbol, FFT-based implementation is suggested to alleviate the effect of timing error on the demodulation process, even eliminate some of the SSJ-induced artifacts. The countermeasures used in the implementation do not assume any statistical model of SSJ nor are they dependant on a symbol synchronization scheme. Also a dual version of the demodulator is derived for an important, but less known, modulation technique called symmetric DPSK (SDPSK).

Citation

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Ahmad A. Masoud. "Robust, FFT-Based, Single Carrier, Multiuser, SDPSK/DPSK Block Demodulation in the Presence of Symbol Synchronization Jitter." Commun. Inf. Syst. 5 (3) 289 - 304, 2005.

Information

Published: 2005
First available in Project Euclid: 8 June 2006

zbMATH: 1162.94318
MathSciNet: MR2230528

Rights: Copyright © 2005 International Press of Boston

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Vol.5 • No. 3 • 2005
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