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AN ENERGY-EFFICIENT DEADLINE-BASED DATA GATHERING ALGORITHM IN HIERARCHICAL WSN WITH MOBILE SINK

机译:基于移动信宿的分层WSN中基于能效截止的数据融合算法

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摘要

Remarkable lifetime improvement has been revealed by controlling sink movement in Wireless Sensor Networks (WSNs). This paper proposes a framework for deadline-based and constant bit rate applications to maximize the lifetime of WSN. By dividing all sensor nodes into clusters, a Mini Data Collector (MDC) node which is responsible for data collection, is selected in each cluster. Our proposed algorithm determines a trajectory for the mobile sink to harvest data from MDCs. Indeed, the trajectory is specified according to the virtual Harvesting-Points (HPs) and the prescribed deadline. Proposing a Mixed Integer Linear Programming (MILP) analytical model to maximize the lifetime of WSN in deadline-based applications is the novelty of this paper. Comprehensive investigation on proposed algorithm parameters has been accomplished in simulation section and the superiority of the proposed algorithm to the stationary sink scheme and predefined trajectory algorithms has been revealed.
机译:通过控制无线传感器网络(WSN)中的接收器移动,可以显着提高使用寿命。本文提出了一个基于期限和恒定比特率应用的框架,以最大化WSN的寿命。通过将所有传感器节点划分为群集,可以在每个群集中选择一个负责数据收集的微型数据收集器(MDC)节点。我们提出的算法确定了移动接收器从MDC收集数据的轨迹。实际上,轨迹是根据虚拟收获点(HP)和规定的截止日期指定的。提出一种混合整数线性规划(MILP)分析模型以在基于截止日期的应用程序中最大化WSN的寿命是本文的新颖之处。在仿真部分完成了对所提出算法参数的综合研究,并揭示了所提出算法相对于静止沉陷方案和预定轨迹算法的优越性。

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