移动Ad hoc网络中基于自适应策略的稳定链路选择算法
doi: 10.3724/SP.J.1146.2006.01270
Adaptive Strategy Based Stable Link Selection Algorithm for Mobile Ad hoc Networks
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摘要: 该文提出了一种基于自适应策略的稳定链路选择算法,定义了稳定邻居度量和本地运动度量两种稳定测度。在此基础上,通过引入模糊隶属度函数得出稳定测度的重要性权值,利用重要性加权的方法即可根据网络状况自适应地得到链路的稳定概率,从而为选择最稳定链路及路由提供依据。仿真结果表明该算法能很好地适应当前的网络状况,明显优于基于LF因子和基于剩余生命时间的链路选择算法,稳定性能显著提高。Abstract: An adaptive strategy based stable link selection algorithm is proposed in this paper, in which the stable neighbor metric and local movement metric are defined. On the basis, by use of the weighting method and weighting coefficients of the two metrics that are acquired by the fuzzy membership function, the stability probability of each link can be computed adaptively so as to find the most stable link or route in a route discovery. The simulation results show that the algorithm can effectively adapt to the network conditions, and outperforms the longevity factor based algorithm and the residual lifetime based algorithm in selecting stable links.
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