Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/931452

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Title
A performance comparison of adaptive channel estimation algorithms using cyclic prefix in OFDM systems
Author/Creator
Ali, Hassan
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Electrical Engineering and Computer Science (UoNS)
Description
Cyclic prefix (CP) based adaptive channel estimation algorithms using conventional one-tap zero forcing (ZF) and minimum-mean-square-error (MMSE) equalization have been proposed for orthogonal frequency division multiplexing (OFDM) systems. In this paper, we compare performance of these schemes. Simulation results show that, at low signal-to-noise ratio (SNR), adaptive channel estimator based on one-tap MMSE equalization performs better than the adaptive channel estimator based on one-tap ZF equalization. On the other hand, at intermediate and high values of SNR, the two schemes exhibit nearly equal performance. It therefore turns out that, adaptive channel estimator based on one-tap MMSE equalization is appealing at low SNR. Conversely, the adaptive channel estimator based on one-tap ZF equalization is a simple and compatible alternative at intermediate to high SNRs.
Relation
IST Transactions on Information Technology : Theory and Applications Vol. 1, Issue 1, p. 14-18
Relation
http://www.istpress.com/browseJournals/journal/ITTA.html
Date
2010
Publisher
IST Press
Keyword(s)
adaptive channel estimation;  one tap equalization;  cyclic prefix (CP);  orthogonal frequency division multiplexing (OFDM);  zero forcing (ZF);  minimum-mean-square-error (MMSE)
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/931452
Identifier
ISSN:1913-8822
Reviewed
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Subject
"IST Transactions on Information Technology : Theory and Applications"
 
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