Based On The Security Of The Aodv Routing Protocol

In recent years, as the wireless communication technology being rapidly developed and the scope of the application of Ad Hoc continuously expanding.AODV is considered as the best protocol in domain, but the security is not being considered in it.Therefore, how to design a security routing protocol that fully guarantee the security and reliability of routing and optimize the energy consumptions of nodes and based on AODV is a hot topic worthing being continuously discussed.The disseratation was made reseach on the security of AODV protocol and the protocol based on the improving of security of AODV.A security routing protocol ------DCAODV that adopted a double testmechanism based on neighbors cetification and binomial distribution probability recursive verification for the routing lookup process,and optimized the reconstruction of route for the routing maintenance phase. In order to avoid the attacks of unreliable notes,a function that made certification for the replying process in routing lookup process was added to DCAODV.The neighbor verification can reduce the relevance between the complexity of verification and the scale of network. It can decrease the number of nodes in the authentication algorithm in the large-scale networks; The binomial distribution probability recursive based on the neighbors certification can also increase the reliability of replying notes.In order to alleviate the burden of reconstruct routing after route interrupt,DCAOV protocol optimized the routing construction.The simulation result indicated that the DCAODV protocol basicly satisfied the security request of the network route of Ad Hoc.