MANETs中基于节点移动度的虚连接的路由  

Routing of virtual connection based on node mobility degree in MANETs

作　　者：丁颖 黄继海 DING Ying;HUANG Jihai(Zhengzhou Institute of Technology,Zhengzhou 450044,China)

机构地区：[1]郑州工程技术学院,河南郑州450044

出　　处：《现代电子技术》2017年第20期67-71,76,共6页Modern Electronics Technique

基　　金：国家自然科学基金(61540055);河南省基础与前沿技术研究计划项目资助(152300410006)

摘　　要：由于移动自组织网络MANETs中节点的快速移动,使得维持源节点与目的节点间的通信路径成为一项挑战性工作。节点的高速移动导致通信链路频繁断裂。为此,提出基于节点移动度的虚连接的路由(MDVRP)。虚路由为一条动态的逻辑路由,其由一系列的特定地理区域构成。每个区域内的节点依据自己的移动度设置转发数据包的定时器,移动度越小,具有优先转发数据包权。MDVRP通过虚路由策略,在源节点与目的节点间建立了多条传输路通,每个节点能独立选取下一跳转发节点,并利用节点移动度,择优选取转发数据包下一跳节点,从而提高链路的稳定性。仿真结果表明,提出的路由协议在端到端传输时延、路由开销以及数据包传输率性能均得到提高。Since the node in mobile Ad Hoc networks(MANETs)moves fast,which makes the maintaining of communica?tion routing between source node and destination node become a significant challenge,and results in frequently break of commu?nication links,a routing of virtual connection based on node mobility degree,which is marked as MDVRP(mobility degree ofnode?virtual router protocol).The virtual routing is a dynamically?created logical routing that is constructed with a series of par?ticular geographical areas.The timers of forwarding data packet of nodes in each region are set according to their mobility de?gree.The smaller the mobility degree of node is,the earlier the priority of forward data packet obtains.The MDVRP is used toestablish more transmission paths between source node and destination node.Each node is able to independently determine itsnext forwarding node according to the stability degree of the node,so as to improve the stability of the link.The simulation re?sults show that the proposed MDVRP has good performance in term of end?to?end transmission delay,routing overhead and trans?mission ratio of delivered packet.

关 键 词：移动自组织网络 路由协议 移动节点 虚路由 虚连接 

分 类 号：TN915-34[电子电信—通信与信息系统]