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, cilt.26, ss.914-923, 2015 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 26 Konu: 4
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1109/tpds.2014.2316142
  • Dergi Adı: IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
  • Sayfa Sayısı: ss.914-923

Özet

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.