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Sensors 2018, 18(1), 165;

A Localization-Free Interference and Energy Holes Minimization Routing for Underwater Wireless Sensor Networks

Department of Electronics, Quaid-i-Azam University, Islamabad 44000, Pakistan
Department of Electronics, University of Peshawar, Peshawar KPK 25000, Pakistan
Department of Computer System and Technology, Faculty of Computer Science and Information Technology, University of Malaya, Kualalumpur 50603, Malaysia
School of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UK
COMSATS Institute of Information Technology, Park Road, Islamabad 44000, Pakistan
Department of Computer Science, Abdul Wali Khan University, Mardan 23200, Pakistan
Collage of Computer Science, King Khalid University, Abha 61421, Saudi Arabia
Authors to whom correspondence should be addressed.
Received: 2 November 2017 / Revised: 13 December 2017 / Accepted: 18 December 2017 / Published: 9 January 2018
(This article belongs to the Special Issue Advances and Challenges in Underwater Sensor Networks)
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Interference and energy holes formation in underwater wireless sensor networks (UWSNs) threaten the reliable delivery of data packets from a source to a destination. Interference also causes inefficient utilization of the limited battery power of the sensor nodes in that more power is consumed in the retransmission of the lost packets. Energy holes are dead nodes close to the surface of water, and their early death interrupts data delivery even when the network has live nodes. This paper proposes a localization-free interference and energy holes minimization (LF-IEHM) routing protocol for UWSNs. The proposed algorithm overcomes interference during data packet forwarding by defining a unique packet holding time for every sensor node. The energy holes formation is mitigated by a variable transmission range of the sensor nodes. As compared to the conventional routing protocols, the proposed protocol does not require the localization information of the sensor nodes, which is cumbersome and difficult to obtain, as nodes change their positions with water currents. Simulation results show superior performance of the proposed scheme in terms of packets received at the final destination and end-to-end delay. View Full-Text
Keywords: underwater; routing; protocol; interference; energy holes; adaptive transmission range underwater; routing; protocol; interference; energy holes; adaptive transmission range

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Khan, A.; Ahmedy, I.; Anisi, M.H.; Javaid, N.; Ali, I.; Khan, N.; Alsaqer, M.; Mahmood, H. A Localization-Free Interference and Energy Holes Minimization Routing for Underwater Wireless Sensor Networks. Sensors 2018, 18, 165.

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