A Distributed Fault-Tolerant Topology Control Algorithm for Heterogeneous Wireless Sensor Networks
IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS, vol.26, no.4, pp.914-923, 2015 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 26 Issue: 4
- Publication Date: 2015
- Doi Number: 10.1109/tpds.2014.2316142
- Journal Name: IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.914-923
- Keywords: Topology control, fault tolerance, k-connectivity, disjoint paths, heterogeneous wireless sensor networks, energy efficiency, CONNECTED DOMINATING SETS, AD HOC, ENERGY-EFFICIENT, MST
- Middle East Technical University Affiliated: Yes
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.