An efficient energy management for solar-powered wireless visual sensor networks = 태양 에너지로 동작하는 무선 비주얼 센서 네트워크의 효율적인 에너지 관리

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Energy harvesting is required for uninterrupted operation of WVSNs (Wireless Visual Sensor Net-works) in many applications. Solar energy is considered one of the effective energy harvesting sources for WVSN applications. In this paper, we propose an efficient energy management scheme for solar-powered WVSNs. The proposed scheme aims to maximize the overall quality of captured video while maximizing the network operation time. Our energy management is based on the prediction of energy supply and de-mand. We predict solar energy supply and demand using information from the weather forecasting center and previous events occurrence statistics at each node. The controlling knobs for the node-level and clus-ter-level energy management are video sampling rates and transferring the energy and video data among nodes with wired links The simulation results show that the proposed method achieves higher sampling quality of video data and longer WVSN operation time by 26.66% on average (up to 33.14%) compared to the greedy energy distribution approaches.
Advisors
Kyung, Chong-Minresearcher경종민
Description
한국과학기술원 : 전기및전자공학과,
Publisher
한국과학기술원
Issue Date
2013
Identifier
513256/325007  / 020113093
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학과, 2013.2, [ iv, 37 p. ]

Keywords

energy consumption; event occurrence; solar energy harvesting; 소모 에너지; 사건 발생; 태양 에너지 획득; 태양 에너지 하베스터; 무선 비주얼 센서 네트워크; wireless visual sensor network

URI
http://hdl.handle.net/10203/181048
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=513256&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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