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首页> 外文期刊>Industrial Informatics, IEEE Transactions on >Energy Efficient Scheduling for Cluster-Tree Wireless Sensor Networks With Time-Bounded Data Flows: Application to IEEE 802.15.4/ZigBee
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Energy Efficient Scheduling for Cluster-Tree Wireless Sensor Networks With Time-Bounded Data Flows: Application to IEEE 802.15.4/ZigBee

机译：具有时限数据流的群集树无线传感器网络的节能调度：在IEEE 802.15.4 / ZigBee中的应用

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摘要

Cluster scheduling and collision avoidance are crucial issues in large-scale cluster-tree Wireless Sensor Networks (WSNs). This paper presents a methodology that provides a Time-Division Cluster Scheduling (TDCS) mechanism based on the cyclic extension of Resource Constrained Project Scheduling with Temporal Constraints (RCPS/TC) problem for a cluster-tree WSN, assuming bounded communication errors. The objective is to meet all end-to-end deadlines of a predefined set of time-bounded data flows while minimizing the energy consumption of the nodes by setting the TDCS period as long as possible. Since each cluster is active only once during the period, the end-to-end delay of a given flow may span over several periods when there are the flows with opposite direction. The scheduling tool enables system designers to efficiently configure all required parameters of the IEEE 802.15.4/ZigBee beacon-enabled cluster-tree WSNs in the network design time. The performance evaluation of the scheduling tool shows that the problems with dozens of nodes can be solved while using optimal solvers.
机译：集群调度和避免冲突是大规模集群树无线传感器网络（WSN）中的关键问题。本文提出了一种方法，该方法基于带时间约束的资源受限项目调度（RCPS / TC）问题的循环扩展，提供了时分群集调度（TDCS）机制，该方案假设群集通信WSN受到限制。目的是要满足一组预定义的有时间限制的数据流的所有端到端期限，同时通过尽可能长地设置TDCS周期来最大程度地减少节点的能耗。由于每个群集在该周期内仅活动一次，因此当存在方向相反的流时，给定流的端到端延迟可能会跨越多个周期。调度工具使系统设计人员可以在网络设计时间内有效地配置IEEE 802.15.4 / ZigBee信标启用的集群树WSN的所有必需参数。调度工具的性能评估表明，使用最佳求解器可以解决数十个节点的问题。

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