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Maximum stability data gathering trees for mobile sensor networks

机译:移动传感器网络的最大稳定性数据收集树

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摘要

We describe a benchmarking algorithm (Max.Stability-DG algorithm) to determine the sequence of data gathering trees for maximum stability in mobile sensor networks such that the number of tree discoveries is the theoretical global minimum. The Max.Stability-DG algorithm assumes the availability of the complete knowledge of future topology changes and works based on a simple greedy principle: whenever a new data gathering tree is required at time instant t, we determine a spanning tree that exists for the longest time since t, transform the spanning tree to a rooted data gathering tree and use it until it exists. The whole procedure is repeated until the end of the session to obtain a sequence of longest-living stable data gathering trees. We prove the correctness of the Max.Stability-DG algorithm and also evaluate the performance of the Max.Stability-DG trees (compared to minimum-distance spanning tree-based data gathering trees) through extensive simulations under diverse operating conditions.
机译:我们描述了一种基准测试算法(Max.Stability-DG算法),用于确定数据收集树的顺序,以实现移动传感器网络中的最大稳定性,从而使树的发现数成为理论上的全局最小值。 Max.Stability-DG算法假定可获得对未来拓扑变化的全面了解,并基于简单的贪婪原理进行工作:每当在时刻t需要新的数据收集树时,我们都会确定存在时间最长的生成树从t开始的时间,将生成树转换为有根的数据收集树,并使用它直到存在。重复整个过程,直到会话结束为止,以获得一系列寿命最长的稳定数据收集树。我们通过在各种操作条件下进行广泛的仿真,证明了Max.Stability-DG算法的正确性,并评估了Max.Stability-DG树的性能(与基于树的最小距离的数据收集树相比)。

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