Reputation-based Energy Efficient Opportunistic Routing for Wireless Sensor Network

Abstract

Selection of the best next-hop in Opportunistic Routing (OR) is a crucial task in wireless sensor networks (WSN). To increase the throughput, network lifetime and reliability of WSN, there is a need of an optimal OR protocol. To improve the reliability of network, reputation management is important. Reputation management gives a chance to nodes to transmit data on secure and reliable routes. This paper gives a new reputation based OR metric and protocol, in which the next hop selection is based on its reputation. The proposed OR metric considers the reputation level as a primary selection parameter for next-hop. New OR metric relies on energy efficiency and packet delivery ratio of next-hop. Proposed OR protocol selects all middle position neighbors as next-hop and potential forwarder will be decided on the basis of new OR metric. Energy consumption is considered to be dynamic. The protocol has been compared with Middle Position Dynamic Energy Opportunistic Routing (MDOR), and Trust and Location Aware Routing Protocol (TLAR). Simulation results depict that the proposed OR protocol optimized the throughput and network lifetime.