文章基本信息

标题：Optimal power allocation for harvesting based wireless control systems: To listen or not to listen to channel information
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作者：Steffi Knorn ; Anders Ahlén ; Subhrakanti Dey 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2022
卷号：55
期号：13
页码：252-257
DOI：10.1016/j.ifacol.2022.07.268
语种：English
出版社：Elsevier
摘要：AbstractThis paper studies a wireless sensor system, where packeted information is transmitted to a receiver over a fading channel. The sensor's transmission energy can be chosen within a given interval. To obtain the current channel gain information, the sensor may listen to a pilot signal from the receiver and estimate the channel, which requires energy. When the sensor does not listen to the pilot signal, the transmission energy has to be estimated solely based on other information like the channel gain distribution and past channel information. The sensor is equipped with an energy harvester and a rechargeable battery to temporarily store the harvested energy. The paper derives the optimal energy allocation policy, shows structural properties of the optimal solution and derives a heuristic suboptimal energy allocation policy. The performance of the optimal policy is compared with several other simple policies through numerical examples.
关键词：Keywordsenergy harvestingfading channelsoptimal energy allocationMarkov decision process