MANETs稳定性路由的移动自适应策略研究  

Study of Mobility-Adaptive Strategy for Stability-Based Routing of MANETs

作　　者：胡曦[1] 汪晋宽[1] 王翠荣[1] 

机构地区：[1]东北大学信息科学与工程学院,沈阳110819

出　　处：《计算机学报》2011年第1期96-104,共9页Chinese Journal of Computers

基　　金：国家自然科学基金(60874108)资助

摘　　要：在移动Ad Hoc网络中,节点移动造成网络拓扑实时变化,并增加了路由的复杂性.已有稳定性路由算法往往关注于建立一条相对稳定的路由,而忽略了路由建立后稳定路由对于节点移动的适应性.针对这一问题,首先提出了一种针对稳定性路由的移动自适应策略,该策略主要包括3个关键技术:路由建立过程中稳定性参数的双向评估、节点移动状态改变时的异步通告和链路稳定性更新以及基于链路稳定性的多径路由维护.然后在此基础上,设计了一种具有移动自适应特性的稳定性路由算法.仿真结果表明:提出的移动自适应策略及稳定性路由算法能进一步提高路由性能,更好地适应动态多变的移动Ad Hoc网路环境.The motion of node leads to the real-time changes of the topology of mobile ad hoc networks, and increases the complexity of routing. The existing stability-based routing algoithms always focus on how to establish a stable route, which have ignored the adaptability of the established stable route to the motions of nodes. Aiming at this problem, a mobility-adaptive strategy for stability-based routing is proposed firstly. This strategy mainly contains three key technologies： the bidirectional evaluation of the stability parameter during route discovery process; the asynchronous information and the link stability update when node changes its motion state; and the multi-path route maintenance based on link stability. Then based on the mobility- adaptive strategy, a mobility-adaptive stability-based routing algorithm is also proposed. The simulation results show that the proposed mobility-adaptive strategy and stability-based routing algorithm can improve the routing performances further, and adapt to the dynamic mobile ad hoc network environment better.

关 键 词：移动AD HOC网络 稳定性路由 移动自适应 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]