一种MANET中基于位置信息的ZRP路由协议  

Location-aided ZRP in MANET

作　　者：施荣华[1] 罗棋峰[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《湖南大学学报（自然科学版）》2009年第8期38-42,共5页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(60773013);湖南省自然科学基金资助项目(07JJ5078)

摘　　要：首先介绍了移动自组网和现有的一些路由协议,然后分析了移动自组网中ZRP协议并提出了一种新的改进的协议L-ZRP.L-ZRP是一种基于位置信息的ZRP协议.为了避免路由发现的盲目性,L-ZRP只在节点位置变化大于一定程度时才启动路由发现.通过目的节点的位置信息,L-ZRP能够确定一个包转发域,以此来限制包转发的范围.在L-ZRP中,分组中所携带的位置信息在节点移动造成位置明显改变时也能够及时更新.这些特点使得L-ZRP能够适应节点的移动性.最后使用NS2对L-ZRP协议进行了仿真,通过对仿真结果的分析显示L-ZRP在减少路由开销和平均端到端时延、提高包投递率方面都有明显的改善.This paper begins with the introduction of MANET and some current routing protocols, then analyzes the ZRP protocol in MANET and proposes a new improved protocol L-ZRP. L-ZRP is a kind of ZRP based on location information. In order to avoid the blindness of the route discovery, L-ZRP only starts the route discovery when the variation of the node location is greater than the certain extent. Through the location information of the destination node, L-ZRP could determine the packet forwarding domain so that it could limit the scope of the packet forwarding. In L-ZRP, the location information in the packets could also update promptly when the mobility of the node creates the obvious change of the position. These characteristics have enabled L-ZRP to adapt the mobility of the node. Finally, simulations are done by using NS2 for the L-ZRP. Through the analysis of the simulation result, it has demonstrated that L-ZRP has obvious improvement in the reduction of the routing overhead, the average end-to-end delay and the packet delivery ratio.

关 键 词：路由协议ad HOC网络 区域路由协议 L-ZRP 位置信息 包转发域 

分 类 号：TN929.5[电子电信—通信与信息系统]