Performance validation of MAC protocols in underwater acoustic networks

Authors:
Qichao Zhao;Andrew Lambert;Craig R. Benson
Affiliations:
The University of New South Wales, Canberra, Australia;The University of New South Wales, Canberra, Australia;The University of New South Wales, Canberra, Australia
Venue:
Proceedings of the Eighth ACM International Conference on Underwater Networks and Systems
Year:
2013

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Abstract

Underwater acoustic networks (UWANs) offer potential in a wide range of applications, but conventional MAC protocols do not work well due to the long propagation delays relative to packet duration. Even for some innovative MAC protocols that show promise, there remains much uncertainty as to their actual performance under anything other than carefully selected scenarios. In some cases the only published results are simulations undertaken by the protocol proposer, resulting in a lack of independent verification. In this paper we detail independent simulation results for several MAC protocols in underwater acoustic networks, compare these to previously published results and accepted theory and analyze the impact of the large propagation delay on different protocols. The limitations of existing published simulations are then addressed, providing a basis for improved simulations in the future. Finally we review progress towards validation of acoustic MAC simulations, and highlight ways in which real-world tests can be improved.