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Research Letters in Communications
Volume 2008 (2008), Article ID 485013, 5 pages
http://dx.doi.org/10.1155/2008/485013
Research Letter

Iterative Channel-Tracking Techniques for 5.9 GHz DSRC Applications

Department of Electrical and Computer Engineering, University of Windsor, Windsor, Ontario, Canada N9B 3P4

Received 25 November 2007; Accepted 15 January 2008

Academic Editor: N. Sagias

Copyright © 2008 Harb Abdulhamid et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This letter proposes a novel channel-tracking scheme to improve the performance of the dedicated short-range communication (DSRC) systems affected by rapid fluctuations in channel envelopes. The proposed technique is called “iterative (turbo) compensation.” It utilizes additional information extracted from the receivers output to further improve the accuracy of the channel estimation. Simulation results show that the iterative scheme performs better than noniterative techniques in higher constellation modulations at high vehicle speeds.