A Generlaized Energy-Aware Data Centric Routing for Wireless Sensor Network

Recently, an energy aware data centric routing protocol (EAD), was proposed and its performance outperforms other existing routing protocols such as LEACH. However, EAD has an inherited problem that only closed nodes to the sink will be chosen as gateways which eventually leads into isolating the rest of the network´s nodes even though they still have enough power to communicate with the sink. In this paper, we generalized the EAD protocol (EAD_General) such that any node in the network can be a gateway node. Hence, an additional phase is added to dynamically select gateways. In this phase, gateway nodes will be selected among candidate gateways based on their energy. The simulation results show significant improvement of the proposed protocol in terms of longer network lifetime, higher throughput and lower energy consumptions compared to original EAD.