Malicious node detection through trust aware routing in wireless sensor networks

Wireless sensor network are constituted by a large number of tiny size sensors and distributed randomly for gathering information. These types of networks have remarkable applications and demand worldwide. The wireless sensor network has been suffered with variety of attacks because of its design and deployment nature. The previous traditional approaches including cryptography, authentication cannot work properly against node misbehavior attacks. To solve this problem, we propose a Trust Aware Wireless Routing Protocol (TAWRP) for detection and isolation of malicious nodes in network. The main aim of TAWRP is to establish an optimal route with trusted nodes and effectively forward the packets from source to destination with minimum packet loss. The performance of TAWRP is evaluated in terms of packet delivery ratio and routing overhead. The results clearly showed that TAWRP can achieve high delivery ratio and efficient in routing overhead in the presence of malicious nodes.