FAULT DETECTION AND RESTORATION APPLICATION FOR WIRELESS SENSOR AND ACTOR NETWORKS

Abstract: In this paper, a Least-Disruptive topology Repair (LeDiR) algorithmic rule is presented. LeDiR may be a localized and distributed algorithmic rule that leverages existing route discovery activities within the network and imposes no extra pre-failure communication overhead. Wireless Sensor and Actor Networks (WSANs) is a network formed with the group of sensors and actors. Those sensors and actors are connected by wireless medium to perform distributed sensing and exploit tasks. In such a network, sensors gather data concerning the physical world, whereas actors take choices and so perform acceptable actions upon the surroundings that permit remote, machine-controlled interaction with the surroundings. This paper overcomes these shortcomings and presents a Least-Disruptive topology Repair (LeDiR) algorithm. LeDiR relies on the local view of a node about the network to devise a recovery plan that relocates the least number of nodes and ensures that no path between any pair of nodes is extended. LeDiR is a localized and distributed algorithm that leverages existing route discovery activities in the network and imposes no additional prefailure communication overhead. The performance of LeDiR is analysed mathematically and validated via extensive simulation experiments.

Keywords: LeDiR, WSANs, DCR, DARA