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Sungsoo Park, Jihaeng Heo, Beomju Kim, Wonsuk Chung, Hano Wang, and Daesik Hong,"Optimal Mode Selection for Cognitive Radio Sensor Networks with RF Energy Harvesting", IEEE PIMRC, Sep. 2012
[IEEE PIMRC]Status : | Presented |
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Date : | 2012-09 |
Title : | Optimal Mode Selection for Cognitive Radio Sensor Networks with RF Energy Harvesting |
Authors : | Sungsoo Park, Jihaeng Heo, Beomju Kim, Wonsuk Chung, Hano Wang, and Daesik Hong |
Conference : | IEEE PIMRC |
Abstract : | This paper investigates an optimal mode selection policy for cognitive radio sensor networks powered by RF energy harvesting. The RF energy harvesting enables the sensor node to operate with a potentially perpetual lifetime. We assume that the sensor node harvests RF energy received from the primary network, and it cannot carry out RF energy harvesting and opportunistic spectrum access at the same time. Therefore, the sensor node should decide whether to access the spectrum or to harvest RF energy in each time slot to maximize an expected total throughput. We develop the optimal mode selection policy by casting this decision making problem in the framework of partially observable Markov decision process (POMDP). Numerical results show that the developed optimal policy finds a balance between obtaining the immediate throughput and harvesting the RF energy for future use. |
URL : | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6362711 |
Download : | http://mirinae.yonsei.ac.kr/?module=file...50dc5fdbba |
Sungsoo Park; Jihaeng Heo; Beomju Kim; Wonsuk Chung; Hano Wang; Daesik Hong; , "Optimal mode selection for cognitive radio sensor networks with RF energy harvesting," Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on , vol., no., pp.2155-2159, 9-12 Sept. 2012
doi: 10.1109/PIMRC.2012.6362711
keywords: {Cognitive radio;Energy harvesting;Markov processes;Radio frequency;Sensors;Throughput;Wireless sensor networks;cognitive radio;energy harvesting;microwave power transmission;telecommunication power supplies;wireless sensor networks;RF energy harvesting;cognitive radio sensor networks;optimal mode selection policy;partially observable Markov decision process;Cognitive radio;RF energy harvesting;opportunistic spectrum access;partially observable Markov decision process (POMDP);sensor networks;}
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6362711&isnumber=6362488
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