Reaching Fault Diagnosis Consensuson a Multiple Damage Unreliable Wireless Sensor Network

Abstract

ABSTRACT Wireless sensor networks (WSNs) are more and more frequently seen as a solution to large-scale tracking and monitoring applications, because of their low-data-rate, low-energy-consumption, and short-range link network which provides an opportunity to monitor and control the physical world to a previously unprecedented scale and resolution. In order to achieve fault-tolerance of WSN, one must deal with the consensus problem. The consensus problem occurs when the fault-free nodes in a distributed system can reach a common agreement before performing specified in instances where faults may exist. The distributed consensus is discussed in previous works. Most of consensus protocols can reach an agreement by the way of fault masking. However, few of them can detect and locate the faulty components. If the faulty components can be detected and located, then the network can be reconfigured to maintain the performance and integrity of a distributed system. In this study, a new protocol is proposed which can tolerate, detect and locate the maximum number of dual failure transmission media to solve the consensus problem in a WSN.