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Blind estimation of residual timing error in OFDM receivers: a non-data-aided maximum-likelihood approach

Athaudage, Chandranath R. N. & Jayalath, Dhammika (2005) Blind estimation of residual timing error in OFDM receivers: a non-data-aided maximum-likelihood approach. In IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, 2005 (IMRC 2005), 11-14 September 2005, Berlin, Germany.

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Abstract

This paper proposes a novel non-data-aided maximum likelihood (ML) approach for the estimation of the residual timing error in OFDM receivers. The novel approach effectively utilizes the finite alphabet property of the received symbol constellation to perform a near perfect residual timing error estimation. Unlike some of the current techniques, the proposed approach requires no pilots and therefore is bandwidth efficient. Moreover, the reduced complexity version of the post-FFT ML algorithm minimizes the receiver computational burden. Simulation results show that the BER degradation due to residual timing error can be almost completely recovered for both AWGN and Rayleigh fading channel scenarios.

Impact and interest:

2 citations in Scopus
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ID Code: 13769
Item Type: Conference Paper
Keywords: OFDM, Residual Timing Error
DOI: 10.1109/PIMRC.2005.1651888
ISBN: 9783800729098
Subjects: Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > COMMUNICATIONS TECHNOLOGIES (100500) > Communications Technologies not elsewhere classified (100599)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2005 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 16 Jun 2008
Last Modified: 01 Mar 2012 00:02

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