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Blind block synchronization algorithms in cyclic prefix systems

Su, Borching and Vaidyanathan, P. P. (2008) Blind block synchronization algorithms in cyclic prefix systems. In: 2008 IEEE International Symposium on Circuits and Systems. IEEE International Symposium on Circuits and Systems. IEEE , pp. 137-140. ISBN 978-1-4244-2078-0.

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In orthogonal frequency division multiplexing (OFDM) systems, symbol synchronization is a critical step for successful data transmission. While this task is done in most current systems by using training symbols, a few studies have been dedicated to solving the problem blindly, that is, where training symbols are not available. Blind symbol synchronization problem is especially important in many blind channel estimation algorithms in the literature which assume that OFDM symbol synchronization is perfect. In this paper, a broader version of the blind symbol synchronization problem is studied, namely, blind block synchronization in cyclic-prefix (CP) systems. The proposed algorithm for this broader problem covers the blind symbol synchronization problem in OFDM systems. Unlike previously reported algorithms which are based on obtaining sufficient statistics of received samples, the proposed algorithm is capable of identifying the correct block boundaries using much less received data in absence of noise. Simulation results of the proposed algorithm not only verify the declared property but also demonstrate improvement in accuracy of symbol synchronization over previously reported algorithms in presence of noise.

Item Type:Book Section
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Vaidyanathan, P. P.0000-0003-3003-7042
Additional Information:©2008 IEEE. Work supported in parts by the NSF grant CCF-0428326 and the Moore Fellowship of the California Institute of Technology.
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Caltech Moore FellowshipUNSPECIFIED
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INSPEC Accession Number10048453
Series Name:IEEE International Symposium on Circuits and Systems
Record Number:CaltechAUTHORS:20100722-135837385
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19167
Deposited By: Tony Diaz
Deposited On:30 Jul 2010 17:39
Last Modified:08 Nov 2021 23:50

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