New Data-Centric QoS Routing Protocol for Wireless Sensor Networks
Yang Shaojun · Chuangan jishu xuebao · 2006
This paper proposes a link estimation scheme,and presents a new data-centric QoS routing algorithm based on directed diffusion,called DDQP.DDQP focuses mainly on two QoS domains,namely,timeliness and reliability;it improves transmission reliability and conserves energy consumption by using cross-layer scheme which is our routing protocol exploits the statistical nature of wireless communication of sensor networks;it decreases network congestion and balances the energy consumption on each node by using back-pressure re-routing.Simulation experimental results show that DDQP is more energy efficient than DD.