Sensors 2017, 17(3), 580; https://doi.org/10.3390/s17030580
Cooperative Position Aware Mobility Pattern of AUVs for Avoiding Void Zones in Underwater WSNs
Nadeem Javaid 1,*
, Mudassir Ejaz 1, Wadood Abdul 2, Atif Alamri 2, Ahmad Almogren 2, Iftikhar Azim Niaz 1 and Nadra Guizani 3
, Mudassir Ejaz 1, Wadood Abdul 2, Atif Alamri 2, Ahmad Almogren 2, Iftikhar Azim Niaz 1 and Nadra Guizani 31
COMSATS Institute of Information Technology, Islamabad 44000, Pakistan
2
Research Chair of Pervasive and Mobile Computing, College of Computer and Information Sciences, King Saud University, Riyadh 11633, Saudi Arabia
3
Department of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Jaime Lloret Mauri
Received: 2 January 2017 / Revised: 2 March 2017 / Accepted: 7 March 2017 / Published: 13 March 2017
(This article belongs to the Special Issue Advances and Challenges in Underwater Sensor Networks)
Abstract
In this paper, we propose two schemes; position-aware mobility pattern (PAMP) and cooperative PAMP (Co PAMP). The first one is an optimization scheme that avoids void hole occurrence and minimizes the uncertainty in the position estimation of glider’s. The second one is a cooperative routing scheme that reduces the packet drop ratio by using the relay cooperation. Both techniques use gliders that stay at sojourn positions for a predefined time, at sojourn position self-confidence (s-confidence) and neighbor-confidence (n-confidence) regions that are estimated for balanced energy consumption. The transmission power of a glider is adjusted according to those confidence regions. Simulation results show that our proposed schemes outperform the compared existing one in terms of packet delivery ratio, void zones and energy consumption. View Full-TextKeywords:
acoustic communication; underwater wireless sensor networks; autonomous underwater vehicle; underwater glider; cooperative routing; void zone
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Javaid, N.; Ejaz, M.; Abdul, W.; Alamri, A.; Almogren, A.; Niaz, I.A.; Guizani, N. Cooperative Position Aware Mobility Pattern of AUVs for Avoiding Void Zones in Underwater WSNs. Sensors 2017, 17, 580.
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