Trust and packet load balancing based secure opportunistic routing protocol for WSN

Opportunistic routing in wireless networks has grown the popularity because it utilizes the broadcasting abilities of wireless links. Wireless sensor networks (WSN) also adopted opportunistic routing in recent years. In WSN, most important objectives of the researchers are to maintain the data integrity, availability and reliability with minimum energy consumption. If any WSN user have to achieve all of these objectives than, he has to ensure the security of the network first. Existing cryptographic schemes are not efficient for WSN, because of high energy consumption. This paper presents a new trust and packet load balancing based opportunistic routing (TPBOR) protocol. The proposed protocol is energy efficient and secure by utilizing the trusted nodes in the routing process. Also the proposed protocol balance the overall network traffic and distribute the traffic load equally in the network. The simulation results show that proposed OR protocol has significantly improves the network performance and reduces the end-to-end delays as compared to existing packet load balancing trust based routing protocols for WSN.