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Sensors 2015, 15(6), 12720-12735; doi:10.3390/s150612720

An Efficient and Reliable Geographic Routing Protocol Based on Partial Network Coding for Underwater Sensor Networks

1
School of Computer and Information Engineering, Tianjin ChengJian University, 300384 Tianjin, China
2
School of Electronic Information Engineering, Tianjin University, 300072 Tianjin, China
3
School of Computer Science, Engineering and Mathematics, Flinders University, 5001 Adelaide, Australia
*
Authors to whom correspondence should be addressed.
Academic Editor: Mohamed F. Younis
Received: 19 February 2015 / Revised: 24 April 2015 / Accepted: 22 May 2015 / Published: 28 May 2015
(This article belongs to the Section Sensor Networks)
View Full-Text   |   Download PDF [815 KB, uploaded 28 May 2015]   |  

Abstract

Efficient routing protocols for data packet delivery are crucial to underwater sensor networks (UWSNs). However, communication in UWSNs is a challenging task because of the characteristics of the acoustic channel. Network coding is a promising technique for efficient data packet delivery thanks to the broadcast nature of acoustic channels and the relatively high computation capabilities of the sensor nodes. In this work, we present GPNC, a novel geographic routing protocol for UWSNs that incorporates partial network coding to encode data packets and uses sensor nodes’ location information to greedily forward data packets to sink nodes. GPNC can effectively reduce network delays and retransmissions of redundant packets causing additional network energy consumption. Simulation results show that GPNC can significantly improve network throughput and packet delivery ratio, while reducing energy consumption and network latency when compared with other routing protocols. View Full-Text
Keywords: underwater sensor networks (UWSNs); geographic routing; partial network coding; packet delivery ratio; energy consumption underwater sensor networks (UWSNs); geographic routing; partial network coding; packet delivery ratio; energy consumption
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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MDPI and ACS Style

Hao, K.; Jin, Z.; Shen, H.; Wang, Y. An Efficient and Reliable Geographic Routing Protocol Based on Partial Network Coding for Underwater Sensor Networks. Sensors 2015, 15, 12720-12735.

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