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Efficient RF Energy Harvesting Algorithm based on Frequency Selective Fading Map  

Park, Ji Ho (광운대학교 유비쿼터스 통신 연구실)
Hwang, Yu Min (광운대학교 유비쿼터스 통신 연구실)
Song, Yu Chan (광운대학교 유비쿼터스 통신 연구실)
Kim, Jin Young (광운대학교 유비쿼터스 통신 연구실)
Publication Information
Journal of Satellite, Information and Communications / v.10, no.2, 2015 , pp. 24-29 More about this Journal
Abstract
Recently, with developments of various networks, devices and various services, energy efficiency has become one of the most crucial issues with respect to sustainability of mobile devices. For connecting to networks seamlessly to offer services, a scenario of RF energy harvesting which supplies energy to wireless devices with RF signals is assumed. To increase the efficiency of RF energy harvesting, this paper proposes a RF energy harvesting algorithm which is based upon a frequency selective fading map. Through the algorithm, a receiver of mobile device can get fading information at each frequency and select a frequency which has the best quality. At the end, the simulation result demonstrates its superiority by showing a 4.45dB improvement in comparison to a deep fading frequency point.
Keywords
RF energy harvesting algorithm; Frequency selective fading; Small-scale fading; Frequency diversity; Fading map;
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