Reliability analysis of Wireless Sensor Network

Wireless sensor network (WSN) is a distributed system which possesses time varying wireless connectivity without any infrastructural backbone. Scarce energy and computation power of individual nodes, unattended and harsh operation environment, self configuration after random deployment etc complexities are known characteristic features of a WSN. Despite aforesaid constraints WSN has been evolved as a tool to bridge the gap between physical world of sensors/actuators and the virtual world of information and services. In some typical scenarios of many potential fieldspsila e.g. environmental monitoring, space explorations, military, agricultural, medical etc to name a few, WSN has been emerged as a promising technology. Sensing the environment and sending the sensed information to a remote place via sink are two primary jobs of a sensor network. These jobs are required to be done with greater reliability because some major decisions depend on the information received from WSN. The issue of quantifying reliability for a WSN is addressed in this paper.