Stochastic modelling of energy harvesting for low power sensor nodes
Stochastic modelling of energy harvesting for low power sensor nodes
复制标题
低功耗传感器节点能量收集的随机建模
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
D. Fiems
中科院分区：
文献类型：
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作者：
E. D. Cuypere;K. D. Turck;D. Fiems
电池寿命是长期低功耗传感器节点的关键障碍。能量或功率收集通过将环境能量转换成电能来减轻对电池功率的消耗。然后，该能量可以被设备用于数据收集和传输。本文提出并分析了一种评估能量收集传感器节点性能的模型。考虑到能量收集、数据收集和数据传输的机会，传感器节点被建模为一个成对的嵌入式系统。该系统有两个队列，一个代表累积的能量，另一个是数据队列。通过一些数值例子，我们研究了能量信息的权衡。
Battery lifetime is a key impediment to long-lasting low power sensor nodes. Energy or power harvesting mitigates the ependency on battery power, by converting ambient energy into electrical energy. This energy can then be used by the device for data collection and transmission. This paper proposes and analyses a queueing model to assess performance of such an energy harvesting sensor node. Accounting for energy harvesting, data collection and data transmission opportunities, the sensor node is modelled as a paired queueing system. The system has two queues, one representing accumulated energy and the other being the data queue. By means of some numerical examples, we investigate the energy-information trade-off.