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.
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.
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|Item Type:||Conference Paper|
|Keywords:||OFDM, Residual Timing Error|
|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:||29 Feb 2012 14:02|
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