Abstract-This paper addresses fault-tolerant topology control in a heterogeneous wireless sensor network consisting of several resource-rich supernodes used for data relaying and a large number of energy constrained wireless sensor nodes. We introduce the k-degree Anycast Topology Control (k-ATC) problem with the objective of selecting each sensor's transmission range such that each sensor is k-vertex supernode connected and the maximum sensor transmission power is minimized. Such topologies are needed for applications that support sensor data reporting even in the event of failures of up to k − 1 sensor nodes. We propose two solutions for the k-ATC problem: a greedy centralized algorithm that produces the optimal solution and a distributed and localized algorithm that incrementally adjusts sensors' transmission range such that the k-vertex supernode connectivity requirement is met. Simulation results are presented to verify our approaches.
The work presented in REF depicts a distributed fault tolerant topology control in static and mobile wireless sensor network.
Fault-Tolerant Topology Control for Heterogeneous Wireless Sensor Networks
2007 IEEE Internatonal Conference on Mobile Adhoc and Sensor Systems
2007 IEEE Internatonal Conference on Mobile Adhoc and Sensor Systems
Computer Science