Title: SSARP: a sound speed adaptive routing protocol for large-scale underwater acoustic sensor networks

Authors: Yen-Da Chen; Chun-Chih Li; Chan-Ying Lien; Ching-Hung Wang; Kuei-Ping Shih

Addresses: Department of Computer Information and Network Engineering, Lunghwa University of Science and Technology, Taoyuan 333, Taiwan ' Department of Computer Science and Information Engineering, Tamkang University, Tamshui 251, Taipei, Taiwan ' Department of Computer Science and Information Engineering, Tamkang University, Tamshui 251, Taipei, Taiwan ' Department of Computer Science and Information Engineering, Tamkang University, Tamshui 251, Taipei, Taiwan ' Department of Computer Science and Information Engineering, Tamkang University, Tamshui 251, Taipei, Taiwan

Abstract: In this paper, an important property of acoustic signal that the speed of acoustic signal varies with water depth has been considered to explore a new routing protocol in UASNs. It implies that the shortest end-to-end delay path may not be the shortest path directly from the source to the sink. Based on this property, a per-hop based routing protocol, named sound speed adaptive routing protocol (SSARP), is proposed. SSARP takes the acoustic speed in different water depth into consideration. SSARP can find a path with a short end-to-end delay to transmit the data. The simulation results also verify that SSARP actually reduces the end-to-end delay and outperforms other routing protocols in terms of end-to-end delay.

Keywords: sound speed; underwater sensor networks; acoustic communication; adaptive routing protocols; underwater acoustics; acoustic sensor networks; per-hop based routing; water depth; simulation; end-to-end delay.

DOI: 10.1504/IJAHUC.2014.064417

International Journal of Ad Hoc and Ubiquitous Computing, 2014 Vol.16 No.3, pp.149 - 160

Received: 13 Apr 2013
Accepted: 14 Apr 2013
Published online: 25 Aug 2014 *

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