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An adaptive propagation-delaytolerant MAC protocol for underwater acoustic sensor networks
| Venue: | In Proceedings of MTS/IEEE OCEANS 2007 |
| Citations: | 34 - 0 self |
BibTeX
@INPROCEEDINGS{Guo_anadaptive,
author = {Xiaoxing Guo and Michael R. Frater and Michael J. Ryan},
title = {An adaptive propagation-delaytolerant MAC protocol for underwater acoustic sensor networks},
booktitle = {In Proceedings of MTS/IEEE OCEANS 2007},
year = {},
pages = {2007}
}
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Abstract
Abstract — Underwater acoustic sensor networks (UASN) can be employed in a vast range of applications, retrieving accurate and up-to-date information from underneath the ocean’s surface. Although widely used by terrestrial sensor networks, radio frequencies (RF) do not propagate well underwater. Acoustic channels are therefore employed as an alternative to support longdistance and low-power communication in underwater sensor networks even though acoustic signals suffer from long propagation delay and have very limited bandwidth. In this paper, we introduce an adaptive propagation-delay-tolerant collision-avoidance protocol (APCAP) for the MAC sublayer of UASN. The protocol includes an improved handshaking mechanism that improves efficiency and throughput in UASN where there is a large propagation delay. The mechanism guarantees nodes that can potentially interfere with a forthcoming transmission are properly informed. In addition, it also allows a node to utilise its idle time whilst waiting for messages to propagate, which is otherwise wasted by most existing MAC protocols. The simulation results indicate that where employed by UASN, APCAP exhibits good performance and outperforms the other MAC protocols examined in this paper.
Keyphrases
adaptive propagation-delaytolerant mac protocol underwater acoustic sensor network mac protocol acoustic signal mac sublayer improved handshaking mechanism forthcoming transmission good performance long propagation delay underwater sensor network terrestrial sensor network up-to-date information low-power communication adaptive propagation-delay-tolerant collision-avoidance protocol vast range limited bandwidth ocean surface abstract underwater acoustic sensor network simulation result radio frequency acoustic channel idle time whilst large propagation delay
