An optimized AODV protocol based on clustering for WSNs

Ad Hoc On-Demand Distance Vector Routing Protocol (AODV) is one of the most common reactive protocols used in Mobile Ad Hoc Networks (MANET) which also has been used in wireless sensor networks (WSNs). In AODV protocol, the flooding mechanism is used to establish routes, which consumes much energy. In this paper, an enhancement in AODV for WSNs is proposed. We leverage clustering algorithm to control the flooding for establishing routes. This will save much energy and prolong the network lifetime. Furthermore, if the data need to be transmitted more than once, a shorter route should be figured out according to the established route. The approach for shorter route is also presented. Simulations have been carried out to test the efficiency of the proposed method.