采用时序控制的ZigBee网络节能

A. Viswanathan, T. Boult
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引用次数: 16

摘要

本文讨论了无线传感器网络(wsn)的功耗降低问题,提出了一种符合IEEE 802.15.4的ZigBee协议的应用级解决方案。ZigBee协议仅对不路由数据包的终端节点支持功耗最低的“睡眠”操作模式。这极大地限制了ZigBee无线传感器网络的应用。本文提出了一种基于zigbee的节能网络设计方案,该方案在应用级对所有网络节点使用多模式调度程序,使整个网络上下运行。这允许所有节点“深度睡眠”,从而增加每个节点的生命周期,从而增加整个网络的生命周期。使用基于速率单调的调度程序进行网络模拟的结果,调度整个网络中各个节点的操作时间,将设备设置为最低功耗操作模式-睡眠模式-在不需要执行操作的所有其他时间。当网络被唤醒时,一个特定的计划传输所需的所有节点都被唤醒并重建ZigBee网络。本文从模拟中给出了功耗估计,显示了与标准ZigBee相比的显著优势
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Power Conservation in ZigBee Networks using Temporal Control
This paper addresses power reduction in wireless sensor networks (WSNs), proposing an application-level solution for the IEEE 802.15.4 compliant ZigBee protocol. ZigBee protocol supports the least power-consuming 'sleep' mode of operation only for end-nodes that do not route packets. This significantly limits ZigBee's WSN applications. This paper presents a ZigBee-based power-conserving network design in which a multi-mode scheduler can be used at the application-level for all network nodes that brings the whole net up and down. This allows all nodes to 'deep sleep', hence increasing the per-node lifetime, leading to an increased overall network lifetime. Results of network simulations with a rate monotonic-based scheduler, schedules operating times for various nodes in the entire network, setting the devices to the lowest power operating mode - sleep mode - for all other times when no operation needs to be performed. When the network wakes up, all nodes necessary for a particular scheduled transmission awake and rebuild the ZigBee network. The paper presents power savings estimates from simulations showing significant advantages over standard ZigBee
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