根据路由的触发方式不同,移动Ad Hoc网络路由协议可分为先验式、按需式和混合式路由协议三类。主要对混合式路由协议ZRP进行研究,通过网络仿真工具NS2对该协议的分组投递率、路由开销及端对端时延进行仿真,并与Ad hoc网络典型路由协议DSDV和AODV的仿真结果进行比较。分析结果表明,ZRP路由协议结合了Ad hoc网络AODV和DSDV协议的优点,在提高分组投递率的同时,路由开销得到了有效的控制,并且在一定程度上缩短了端对端时延,对Ad hoc路由协议的研究具有重要的意义。
According to the different routing trigger modes,Ad Hoc network routing protocols could fall into three categories including proactive,on-demand and hybrid routing protocols.This paper mainly discusses and analyzes hybrid ZRP routing protocol.Simulation with NS-2 is done on packet delivery ratio,routing overhead and end-to-end delay of hybrid ZRP routing protocol,and comparison of this protocol with typical routing protocol DSDV and AODV in Ad hoc network made.Experiment and analysis indicate that ZRP,combined with the advantages of AODV and DSDV protocols in Ad hoc network,could improve packet delivery ratio while effectively control the routing overhead,and meanwhile,the end-to-end delay is also reduced to some extent.This is of great significance to the research of Ad hoc routing protocols.