A Distributed Fault-Tolerant Topology Control Algorithm for Heterogeneous Wireless Sensor Networks


Bagci H., KÖRPEOĞLU İ., YAZICI A.

IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS, vol.26, no.4, pp.914-923, 2015 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 4
  • Publication Date: 2015
  • Doi Number: 10.1109/tpds.2014.2316142
  • Title of Journal : IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
  • Page Numbers: pp.914-923

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.