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http://dx.doi.org/10.12815/kits.2018.17.4.159

Energy Efficiency of Decoupled RF Energy Harvesting Networks in Various User Distribution Environments  

Hwang, Yu Min (Dept. of Wireless communications Eng., Univ. of Kwangwoon)
Sun, Young Ghyu (Dept. of Wireless communications Eng., Univ. of Kwangwoon)
Shin, Yoan (Dept. of Electronic Eng., Univ. of Soongsil)
Kim, Dong In (Dept. of Information and Communication Eng., Univ. of Sungkyunkwan)
Kim, Jin Young (Dept. of Wireless communications Eng., Univ. of Kwangwoon)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.17, no.4, 2018 , pp. 159-167 More about this Journal
Abstract
In this paper, we propose an algorithm to optimize energy efficiency in a multi-user decoupled RF energy harvesting network and experiment on the trend of energy efficiency change assuming users' various geographical distribution scenarios. In the RF energy harvesting network where both wireless data transmission and RF energy harvesting are simultaneously performed, the energy efficiency is a key indicator of network performance, and it is necessary to investigate how various factors can affect the energy efficiency. In order to increase energy efficiency effectively, we can confirm that users' distributions are important factors in the RF energy harvesting network from the simulation results.
Keywords
Decoupled Radio Frequency-Energy Harvesting Network; Energy Efficiency; Convex Optimization; User Distribution; Lagrange Dual Problem;
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