A Simple On-demand Routing Protocol for Wireless Sensor Networks

Monitoring and reporting to observers immediately when interested events happen are a kind of important application of wireless sensor networks. Therefore, the paper proposes a simple on-demand (SOD) routing protocol, in which the dynamic sink node algorithm improves the uniformity of power consumption, and the diffusion algorithm decreases the traffic of route generation and resumption. Allowing for bursting and real-time data transmission, SOD binds the route request and the first reading up to provide immediate data transmission as well as route generation. Simulation and experiment show that SOD is simple, power-efficient and real-time.