OB-DETA: Observation-based directional energy transmission algorithm in energy harvesting networks

Haneul Ko; Sangheon Pack

doi:10.1109/JCN.2019.000015

OB-DETA: Observation-based directional energy transmission algorithm in energy harvesting networks

Haneul Ko, Sangheon Pack

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

In directional energy transmissions, a radio frequency (RF) energy source needs to monitor each sector to achieve higher RF energy transmission efficiency. However, since the location of harvesting nodes can be dynamically changed in mobile environments, it is difficult to obtain the exact numbers of harvesting nodes and the distance between harvesting nodes and the RF energy source in all sectors within limited time. In such a situation, the operations of the RF energy source (i.e., monitoring sectors and transmitting the RF energy) can be modeled by a partially observable Markov decision process (POMDP), which has high complexity to be solved. As a practical solution, we propose an observation-based directional energy transmission algorithm (OB-DETA) that estimates the efficiency of energy transmission in sectors and transmits the RF energy to the selected sectors with high energy transmission efficiency (i.e., sectors with lots of non-fully-charged harvesting nodes around the RF energy source). Evaluation results are given to demonstrate the effectiveness of OB-DETA over the comparison schemes in terms of the RF energy transmission efficiency.

Original language	English
Article number	8718094
Pages (from-to)	168-176
Number of pages	9
Journal	Journal of Communications and Networks
Volume	21
Issue number	2
DOIs	https://doi.org/10.1109/JCN.2019.000015
Publication status	Published - 2019 Apr

Bibliographical note

Funding Information:
Manuscript received March 5, 2018; approved for publication by Dusit Tao Niyato, Division III, July 16, 2018. A preliminary version of this paper was presented at International Conference on ICT Convergence (ICTC) 2017, Jeju Island, Korea, Oct. 2017 [1]. This work was supported in part by National Research Foundation (NRF) of Korea Grant funded by the Korean Government (MSIP) (No. 2017R1E1A1A01073742) and in part by Institute for Information & Communications Technology Promotion (IITP) grants funded by the Korea government (MSIT) (No. 2015-0-00575, Global SDN/NFV Open-Source Software Core Module/Function Development). H. Ko is with Korea University and he was a visiting postdoctoral fellow in University of British Columbia, Vancouver, BC, Canada, email: [email protected]. S. Pack is with the School of Electrical Engineering, Korea University, Seoul, Korea, email: [email protected]. S. Pack is the corresponding author. Digital Object Identifier: 10.1109/JCN.2019.000015

Funding Information:
This work was supported in part by National Research Foundation (NRF) (No. 2017R1E1A1A01073742)

Publisher Copyright:
© 2011 KICS.

Keywords

Directional antenna
energy harvesting
partially observable Markov decision process (POMDP)
radio frequency (RF) energy
wireless power transmission (WPT)

ASJC Scopus subject areas

Information Systems
Computer Networks and Communications

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10.1109/JCN.2019.000015

Cite this

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title = "OB-DETA: Observation-based directional energy transmission algorithm in energy harvesting networks",

abstract = "In directional energy transmissions, a radio frequency (RF) energy source needs to monitor each sector to achieve higher RF energy transmission efficiency. However, since the location of harvesting nodes can be dynamically changed in mobile environments, it is difficult to obtain the exact numbers of harvesting nodes and the distance between harvesting nodes and the RF energy source in all sectors within limited time. In such a situation, the operations of the RF energy source (i.e., monitoring sectors and transmitting the RF energy) can be modeled by a partially observable Markov decision process (POMDP), which has high complexity to be solved. As a practical solution, we propose an observation-based directional energy transmission algorithm (OB-DETA) that estimates the efficiency of energy transmission in sectors and transmits the RF energy to the selected sectors with high energy transmission efficiency (i.e., sectors with lots of non-fully-charged harvesting nodes around the RF energy source). Evaluation results are given to demonstrate the effectiveness of OB-DETA over the comparison schemes in terms of the RF energy transmission efficiency.",

keywords = "Directional antenna, energy harvesting, partially observable Markov decision process (POMDP), radio frequency (RF) energy, wireless power transmission (WPT)",

author = "Haneul Ko and Sangheon Pack",

note = "Funding Information: Manuscript received March 5, 2018; approved for publication by Dusit Tao Niyato, Division III, July 16, 2018. A preliminary version of this paper was presented at International Conference on ICT Convergence (ICTC) 2017, Jeju Island, Korea, Oct. 2017 [1]. This work was supported in part by National Research Foundation (NRF) of Korea Grant funded by the Korean Government (MSIP) (No. 2017R1E1A1A01073742) and in part by Institute for Information & Communications Technology Promotion (IITP) grants funded by the Korea government (MSIT) (No. 2015-0-00575, Global SDN/NFV Open-Source Software Core Module/Function Development). H. Ko is with Korea University and he was a visiting postdoctoral fellow in University of British Columbia, Vancouver, BC, Canada, email: [email protected]. S. Pack is with the School of Electrical Engineering, Korea University, Seoul, Korea, email: [email protected]. S. Pack is the corresponding author. Digital Object Identifier: 10.1109/JCN.2019.000015 Funding Information: This work was supported in part by National Research Foundation (NRF) (No. 2017R1E1A1A01073742) Publisher Copyright: {\textcopyright} 2011 KICS.",

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N2 - In directional energy transmissions, a radio frequency (RF) energy source needs to monitor each sector to achieve higher RF energy transmission efficiency. However, since the location of harvesting nodes can be dynamically changed in mobile environments, it is difficult to obtain the exact numbers of harvesting nodes and the distance between harvesting nodes and the RF energy source in all sectors within limited time. In such a situation, the operations of the RF energy source (i.e., monitoring sectors and transmitting the RF energy) can be modeled by a partially observable Markov decision process (POMDP), which has high complexity to be solved. As a practical solution, we propose an observation-based directional energy transmission algorithm (OB-DETA) that estimates the efficiency of energy transmission in sectors and transmits the RF energy to the selected sectors with high energy transmission efficiency (i.e., sectors with lots of non-fully-charged harvesting nodes around the RF energy source). Evaluation results are given to demonstrate the effectiveness of OB-DETA over the comparison schemes in terms of the RF energy transmission efficiency.

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OB-DETA: Observation-based directional energy transmission algorithm in energy harvesting networks

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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