路由协议.pdf

32 20 2006 10 Vol.32 20 Computer Engineering October 2006 ·· 2006 A TP393 ( 200092) Directed Diffusion CNS2 Directed Diffusion Routing Protocol and Simulation of Wireless Sensor Network WANG Yongling, GUO Aihuang (Electronics and Information Engineering School, Tongji University, Shanghai 200092) AbstractThe routing protocol is one of the key researching techniques for wireless sensor network, and the data-centric routing protocol is the hotspot of study at present. Based on locality updating mechanism, the data-centric Directed Diffusion protocol is improved. In different simulation scenes of different parameters, the improved protocol depicted by C++ is simulated on the NS2 platform. Compared with the performance of Directed Diffusion protocol, the improved protocol has less delay and overhead. Key wordsWireless sensor network; Routing protocol; Locality; Simulation Flooding SPIN(Sensor Protocols for Information via Negotiation) [1] [2] DD(Directed Diffusion) DD [3] DD