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Sensors 2016, 16(9), 1444; doi:10.3390/s16091444

A Network Coding Based Hybrid ARQ Protocol for Underwater Acoustic Sensor Networks

College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
Author to whom correspondence should be addressed.
Academic Editor: Jaime Lloret Mauri
Received: 14 July 2016 / Revised: 17 August 2016 / Accepted: 5 September 2016 / Published: 7 September 2016
(This article belongs to the Section Sensor Networks)
View Full-Text   |   Download PDF [925 KB, uploaded 7 September 2016]   |  


Underwater Acoustic Sensor Networks (UASNs) have attracted increasing interest in recent years due to their extensive commercial and military applications. However, the harsh underwater channel causes many challenges for the design of reliable underwater data transport protocol. In this paper, we propose an energy efficient data transport protocol based on network coding and hybrid automatic repeat request (NCHARQ) to ensure reliability, efficiency and availability in UASNs. Moreover, an adaptive window length estimation algorithm is designed to optimize the throughput and energy consumption tradeoff. The algorithm can adaptively change the code rate and can be insensitive to the environment change. Extensive simulations and analysis show that NCHARQ significantly reduces energy consumption with short end-to-end delay. View Full-Text
Keywords: ARQ; fountain codes; network coding; underwater acoustic sensor network ARQ; fountain codes; network coding; underwater acoustic sensor network

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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. (CC BY 4.0).

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Wang, H.; Wang, S.; Zhang, E.; Zou, J. A Network Coding Based Hybrid ARQ Protocol for Underwater Acoustic Sensor Networks. Sensors 2016, 16, 1444.

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