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Title: Scoped bellman-ford geographic routing for large dynamic wireless sensor networks
Authors: Zhang, X
Hong, J
Lu, SL
Xie, L
Cao, JN 
Keywords: Bellman-Ford
Geographic routing
Void (hole)
Wireless sensor network
Issue Date: 2008
Source: Journal of computer science and technology, 2008, v. 23, no. 6, p. 944-956 How to cite?
Journal: Journal of Computer Science and Technology 
Abstract: Routing is a fundamental problem in wireless sensor networks. Most previous routing protocols are challenged when used in large dynamic networks as they suffer from either poor scalability or the void problem. In this paper, we propose a new geographic routing protocol, SBFR (Scoped Bellman-Ford Routing), for large dynamic wireless sensor networks. The basic idea is that each node keeps a view scope of the network by computing distance vectors using the distributed Bellman-Ford method, and maintains a cost for routing to the sink. When forwarding a packet, a node picks the node with minimum cost in its routing table as a temporary landmark. While achieving good scalability, it also solves the void problem in an efficient manner through the combination of Bellman-Ford routing and cost-based geographic routing. Analytical and simulation results show that SBFR outperforms other routing protocols not only because of its robustness and scalability but also its practicality and simplicity.
ISSN: 1000-9000
DOI: 10.1007/s11390-008-9197-9
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