標題: A Blind Maximum-SINR Synchronization Technique for OFDM Systems
作者: Chin, Wen-Long
Chen, Sau-Gee
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 2008
摘要: This work presents a blind synchronizer for orthogonal frequency-division multiplexing (OFDM) systems based on signal-to-interference-and-noise-ratio (SINR) maximization. Due to the incurred losses from inter-symbol interference (ISI) and inter-carrier interference (ICI) introduced by synchronization errors, the SINR of the received data drops drastically. By taking advantage of this characteristic, both the symbol time and carrier frequency offsets are intuitively estimated by maximizing the SINR metric. For the SINR metric, we propose a blind SINR estimation, which does not need prior knowledge of the channel profiles and transmitted data. As such, the proposed maximum-SINR (MSINR) synchronization algorithm is non-data-aided (NDA) so that the transmission efficiency can be improved. Moreover, to reduce the computational complexity, the early-late gate (ELG) technique is proposed for the implementation of the synchronizer. Simulation results exhibit better performance for the MSINR algorithm than conventional techniques in multipath fading channels.
URI: http://hdl.handle.net/11536/30732
http://dx.doi.org/10.1109/GLOCOM.2008.ECP.849
ISBN: 978-1-4244-2324-8
ISSN: 1930-529X
DOI: 10.1109/GLOCOM.2008.ECP.849
期刊: GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE
Appears in Collections:Conferences Paper


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