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Synchronization Algorithms for Iterative Demodulated M-ary DS-CDMA Systems

Xiao, P and Strom, E (2002) Synchronization Algorithms for Iterative Demodulated M-ary DS-CDMA Systems In: IEEE Globecom, 2001-11-25 - 2001-11-29, San Antonio, TX.

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In this paper, we developed several algorithms to combat the impact of synchronization errors on demodulating M-ary orthogonal signaling formats in asynchronous DS-CDMA systems. The system under study resembles the uplink of an IS-95 system. The channel is assumed to be a time-varying flat Rayleigh-fading channel. Investigation shows that synchronization errors severely deteriorate the performance of multi-user detectors. We proposed an adaptive algorithm to estimate the errors in synchronization. Based on this information, remedial actions are taken to alleviate the performance degradation caused by sampling the received signals at the incorrect timing. Simulation results show considerable capacity gains when the proposed algorithms are performed to erroneously sampled signals

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Xiao, P
Strom, E
Date : 6 August 2002
DOI : 10.1109/GLOCOM.2001.965713
Contributors :
Additional Information : © 2001 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 20 Sep 2013 08:06
Last Modified : 31 Oct 2017 15:12

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