Comparison research on the regular flooding route protocol and directional flooding route protocol in the DTN

DTN network is a new type of wireless mobile ad hoc networks. In recent years it has been a hotly debated. To enable transfer the packets between nodes efficiently,proposing a directional flooding algorithm: Based on ∝ angle mechanism in DREAM, rectangular mechanism and distance mechanism in LAR for determining to find the domain;General flooding protocol and improved directional flooding protocol are stimulated and compared by NS2 network stimulation tool. Stimulation result show that the directional flooding routing reduce the network overhead, and save network resources,and reduce the delay between the nodes,and improve the network transmission efficiency.