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A simplified protocol for energy self-sufficient sensors in an IEEE 802.15.4 ZigBee WSN.pdf
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上传时间: 2010-11-18
详细说明： Abstract—For the application of wireless sensor network technology in an energy self-sufficient condition monitoring appliance, we propose a new hybrid network topology to combine the advantages of the ZigBee standard with the need for lowest power consumption when applying an energy harvesting solution for a subset of the sensor nodes. For a research project on a wireless condition monitoring system, we developed a prototype implementation of a partly energy self-sufficient wireless sensor network. We adapted the ZigBee network protocols so that the energy consumption of the self-sufficient nodes is reduced albeit a ZigBee conform communication with the rest of the network is still ensured. In this paper, the prototype system is presented and the problem when applying a full ZigBee stack is stated. We propose to shift parts of the network functionality from the end-devices to the (mains- or battery powered) routers and show actual measurement results and calculated values to indicate the improvements of this adapted hybrid topology. Index Terms—IEEE 802.15.4, industrial sensor network applications, sensor networks, ZigBee, energy saving, network protocol, energy self-sufficient, wireless condition monitoring ...展开收缩
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