So hybrid routing protocols have better performance, ZRP Routing Protocol is one of typical representative of hybrid routing protocols.ZRP routing protocol makes hybrid use of proactive routing protocol and on-demand routing protocol, and makes them worked in different northface jackets scope, which gives full play to their advantages. In the zone of ZRP adopts proactive routing protocol, which has no the initial delay problem of on-demand routing protocol; in the inter-zone of ZRP adopts on-demand routing protocol, which avoids the interaction overhead problem of proactive cheap womens nike shoes routing protocol.Although ZRP routing protocol combines the advantages of cheap men's nike shoes proactive routing protocol and on-demand routing protocol, and avoids the disadvantage of both, but there still are some disadvantage, such as: the domain formation algorithm of ZRP is too nike running shoes simple, one node maybe belongs to many domains, one domain maybe belongs to another domain, which exist the routing redundancy situation in the routing forward. For the above shortcomings, in this paper we present an improved protocol to improve the ZRP routing protocol referred to as nike shoes IZRP. In IZRP we use of new domain generation algorithm, by introducing the concept of the number of communications nodes, we choose the more number of nodes as the central node to generate the domain, which reduced the number of domains avoided nodes' and the domains' duplicate attribution; in domain generation algorithm we choose the central nodes as the cluster header nodes, by using the improved routing algorithm, the cluster header nodes are responsible for routing forward. By this way, redundancy of routing forward is avoided, routing overhead is reduced and the routing efficiency is also improved.In accordance with the routing performance evaluation criteria, through OPNET simulation platform, we carry out the simulation on improved ZRP routing protocol and ZRP routing protocol respectively. By comparing the performance of packet delivery rate, end-to-end average packet delay, routing overhead and so on, we could verify the superiority of improved ZRP.
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