Improved Multipath Robustness of DFH Modulation in the Underwater Acoustic Channel

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Luca Cazzanti, Dianne Egnor, Geoffrey S. Edelson, Arindam Das

Abstract - We characterize performance improvement of differential frequency hopping modulation under two techniques that mitigate the multipath effects of the underwater acoustic channel: blind adaptive equalization and beamforming. We report results on data collected at-sea during the RACE08, SPACE08 and WHOI09 experiments, and show that the biterror rate improves with the application of these two techniques. Future improvements may combine joint single-element, blind equalization and beamforming (multi-element) approaches to leverage their respective strengths.

BibTex -
TITLE = {Improved Multipath Robustness of {DFH} Modulation in the Underwater Acoustic Channel},
AUTHOR = {L. Cazzanti and D. Egnor and G. S. Edelson and A. Das},
BOOKTITLE = {Proc.{IEEE/MTS}{OCEANS} Conference},
ADDRESS = {Seattle, {USA}},
MONTH = {September},
YEAR = {2010}}