Simulation and analysis of multicast routing protocol in Ad Hoc network based on link stability
Zhou Yongta
(Educational Technology and Information Center, Guangdong Nanhua Vocational College of Industry and Commerce，Guangzhou 510507，China)
Abstract： Based on the analysis of the existing typical Ad Hoc network multicast routing protocol MAODV,aiming at the low utilization rate of protocol messages and the limited amount of information collected,the improved protocol SMAODV is proposed.HELLO response mechanism is used to improve the message utilization,to complete the data collection required by the protocol,build and maintain the route based on the link stability,and select the better route according to the comprehensive measurement of the link stability vector.In addition,the active link handover mechanism is adopted,that is,the prediction idea is used to actively switch the link before the link failure,so as to reduce the cost of repairing or even reconstructing the route caused by the link failure.The experimental results show that the proposed scheme is correct and feasible,and has better comprehensive performance in various network environments.
Key words : Ad Hoc network; multicast routing protocol; MAODV; link stability；the active link switching
