Tuesday, April 6, 2010

improvements on the shortcomings

Subsequently, the paper shows the analyses and the improvements on the shortcomings, such as transmission jitter generated by neighbor node selecting mechanism and optimum route mechanism, the signal frame flooding generated by local repair mechanism and security issue in the traditional AODV routing protocol used in the searching and rescue communication discount wedding dresses system that has a central node in the network and tree-topology.In this paper, to restrict the jitter of the transmission in the safe Ad hoc network, the following methods are adopted: adding received signal strength intensity threshold and dynamically selecting the optimum route to choose the lace wedding dresses stable node as the neighbor; to restrict the flooding of the signal frame, decrease the time of routing repair and enhance the reliability of the transmission by using the improved local repair mechanism which is based on the information of next one hop and next two hop nodes. And the simulation results of the cheap wedding gown dresses original and improved AODV routing protocol, which are cheap evening dresses obtained in the case of different movement speed and pause time of the nodes, show that, the improved AODV routing protocol has a custom made prom dresses better performance than the original one in discount wedding dresses end-to-end 12hot cheap prom dresses transmission delay and successful packet delivery ratio. And in the unsafe Ad hoc network, a better successful packet delivery ratio is achieved while wedding gowns dresses sacrificing some transmission delay and protocol overhead by using signal frame authentication and verification between the source node and destination node, which is cheap evening dresses aim to increase the security of the routing protocol.
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