Research on Mechanism Optimization of ZRP Cache Information Processing in Mobile Ad Hoc Network

In the research area of mobile ad hoc network, ZRP which integrates advantages of proactive routing protocols and on-demand routing protocols has been the crucial research now. In this paper, the principle and the cache mechanism of ZRP are analyzed. In allusion to the problems of late-deletion and early-deletion in ZRP, the optimized A-ZRP which associates the routing information priority with the latest access time is proposed. It improves information store format of cache in the routing table. Finally, the simulation experiment shows that A-ZRP shows advantages to ZRP in terms of the radius of routing zone, routing overhead, delivery fraction and packet delay based on the same transmission load and node movement. In A-ZRP, the processing of path discovery is reduced, the routing overhead is decrease and the performance of the delivery fraction and the packet delay are improved. The routing protocol performance of mobile ad hoc ZRP is improved.