Trust Aware Routing For Wireless Sensor Networks

A Wireless sensor network (WSN) is usually composed of a large number of spatially distributed autonomous sensor nodes(SNs) to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants. A WSN deployed in the WSN has the capability to read the sensed information and transmit or forward information to base stations or a sink node through multihop routing. Due to dynamic and unpredictable changing behaviour of nodes, there liable data delivery is a challenging task. For WSNs, the traditional cryptographic and authentication-based solutions cannot be adopted due to their associated cost and in capability to count er nodes misbehaviour attacks. Here we develop a new trust ensuring mechanism with multi contextual aspects including the interactions between the WSN nodes and their energy levels. Furthermore, a minimum hop count mechanism is also proposed to select a path with less processing delay. Since the energy is also an important factor, this approach focused to reduce the overall energy consumption also. The performance is measured through the performance metrics namely, packet deliver ratio, Malicious Detection Rate (MDR), and False Positive Rate (FPR