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Hybrid Contention-Based Geographic Routing in Wireless Sensor Networks

Le, Dinh Thanh and Nguyen, Dai Tho and Ho, Thuan (2011) Hybrid Contention-Based Geographic Routing in Wireless Sensor Networks. In: Second International Symposium on Information and Communication Technology (SoICT 2011), 13-14 October 2011, Hanoi, Vietnam.

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Beaconless and contention-based geographic routing is an attractive approach to resource-constrained wireless sensor networks. Aggressive contention is the most cost-efficient form of contention-based geographic routing since it uses no control packet. Nevertheless, to avoid duplicated data packets, aggressive contention must set restriction on the contention area. Consequently, its packet delivery rate is limited. On the other hand, non-aggressive contention maximizes packet delivery rate by making use of full contention area. As the compensation, control packets have to be used and additional delay is introduced. In this paper, we propose Hybrid Contention-Based Geographic Routing (HCGR) - a protocol that takes full aggressive contention and uses non-aggressive contention for recovering aggressive contention from failure. If aggressive contention succeeds, non-aggressive contention is suppressed. In cases where aggressive contention fails, non-aggressive contention is taken place to deliver data packets. Thus, HCGR can maximize packet delivery rate while keeping its overheads reasonably low. We implement HCGR and single-form protocols in the network simulator ns-2, conduct extensive simulations and present simulation results.

Item Type: Conference or Workshop Item (Paper)
Subjects: Electronics and Communications > Communications
Electronics and Communications
Information Technology (IT)
Divisions: Faculty of Information Technology (FIT)
Depositing User: Dr. Dai Tho Nguyen
Date Deposited: 29 Dec 2016 08:29
Last Modified: 06 Jan 2017 07:15

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