基于负载平衡的无线ad-hoc网络路由  

Load-balanced Routing in the Wireless ad hoc Network

作　　者：陈凌[1] 鹿凯宁[1] 

机构地区：[1]天津大学网络中心,天津300072

出　　处：《计算机工程》2002年第z1期202-206,共5页Computer Engineering

摘　　要：ad-hoc无线移动网络是一种无基础通信设施的网络,网络中没有专门的路由器,但所有的结点都能够自由移ad-hoc动,并可以动态地和其他结点相连。为了使非通信范围内的移动结点之间进行通信,文章使用了一种有效的路由协议来实现结点间的路由寻找,从而使信息能够在结点间及时传输。研究了基于负载平衡的路由协议()。ad-hocLBARLBAR用结点活跃度来表示移动结点的负载情况。中关于从信源到信宿的所有路径的路由消息都通过建立消息机制传送LBAR到信宿传递的消息中包括了所有路径上的结点活跃度的值。信宿根据收集的所有可能路径的相关消息选出最佳路径,并,向信源发送应答。链路发生断裂时,LBAR还可通过冗余路径提供到达信宿的有效路由。仿真验证了文章的路LBARGloMosim由思想,仿真结果显示,提高了网络包投递和平均端端延迟方面的性能。A wireless ad hoc network is an infrastructureless mobile network that has no fixed routers. In a typical ad hoc environment, all nodes are capable of moving and connecting dynamically to carry out a given task. A critical challenge in the design of ad hoc networks is the development of efficient routing protocols that can provide high-quality communication between the mobile nodes that may not be within the wireless range of each other. This paper studies the load balance in the wireless ad hocnetwork and presents the load-balanced ad hoc routing protocol for communication .Node activity is used to measure the load on a mobile node, messages include node activity information of all nodes are on the traversed path. The destination chooses the path with the best-cost value based on the information of node activity .When link breaks, LBAR provides efficient path maintenance to patch up broken links. The GloMosim simulation study is conducted to evaluate the performance of the proposed scheme. The results show that LBAR improves the performance of packet delivery and average end-to-end delay in ad-hoc network.

关 键 词：无线AD hoc网络:路由 负载平衡 路径寻找 路径保持 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]