A distributed tault-tolerant topology control algorithm for heterogeneous wireless sensor networks
Date
2015-04Source Title
IEEE Transactions on Parallel and Distributed Systems
Print ISSN
1045-9219
Publisher
Institute of Electrical and Electronics Engineers
Volume
26
Issue
4
Pages
914 - 923
Language
English
Type
ArticleItem Usage Stats
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Abstract
This paper introduces a distributed fault-tolerant topology control algorithm, called the Disjoint Path Vector (DPV), for heterogeneous wireless sensor networks composed of a large number of sensor nodes with limited energy and computing capability and several supernodes with unlimited energy resources. The DPV algorithm addresses the k-degree Anycast Topology Control problem where the main objective is to assign each sensor's transmission range such that each has at least k-vertex-disjoint paths to supernodes and the total power consumption is minimum. The resulting topologies are tolerant to k - 1 node failures in the worst case. We prove the correctness of our approach by showing that topologies generated by DPV are guaranteed to satisfy k-vertex supernode connectivity. Our simulations show that the DPV algorithm achieves up to 4-fold reduction in total transmission power required in the network and 2-fold reduction in maximum transmission power required in a node compared to existing solutions.
Keywords
Topology controlFault tolerance
K-connectivity
Disjoint paths
Heterogeneous wireless sensor networks
Energy efficiency