Flooding and Directed Diffusion Routing Algorithm in Wireless Sensor Networks

Data explosion and higher energy consumption in flooding routing of WSN is a considerable problem. A directed flooding routing mechanism according to the sensor nodes’ hop count is presented. In this paper a distributed algorithm to calculate the node-hop is designed and a data packets forwarding criterion using node-hop is constructed. With the methods the data packets’ broadcast scale can be controlled, the data packets can be delivered more efficiently along optimized path. In the algorithm the QoS of the routing and the robustness are considered. The simulation results show that the directed flooding routing algorithm with node hops can get the energy efficiency in the WSN and keep the simplicity and reliability of the flooding routing.