Green Wireless Power Transfer Networks
| Autor: | Qingzhi Liu, Przemyslaw Pawelczak, Michal Golinnski, Martijn Warnier |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
FOS: Computer and information sciences
Computer Networks and Communications Computer science Energy management 02 engineering and technology Energy conservation Energy on demands Computer Science - Networking and Internet Architecture Idle 2015 Human & Operational Modelling Radio frequency radiation Inductive power transmission 0202 electrical engineering electronic engineering information engineering NO - Networked Organisations Wireless power transfer Electrical and Electronic Engineering Next generation networking Networking and Internet Architecture (cs.NI) Reduced energy business.industry 020208 electrical & electronic engineering Transmitter Electrical engineering 020206 networking & telecommunications Control planes Electric rectifiers Transmitters Power (physics) Next generation networks Support devices ELSS - Earth Life and Social Sciences Green wireless Telecommunications business Energy (signal processing) |
| Zdroj: | IEEE Journal on Selected Areas in Communications, 5, 34, 1740-1756 |
| ISSN: | 0733-8716 |
| DOI: | 10.1109/jsac.2016.2520178 |
| Popis: | A Wireless Power Transfer Network (WPTN) aims to support devices with cable-less energy on-demand. Unfortunately, wireless power transfer itself-especially through radio frequency radiation rectification-is fairly inefficient due to decaying power with distance, antenna polarization, etc. Consequently, idle charging needs to be minimized to reduce already large costs of providing energy to the receivers and at the same time reduce the carbon footprint of WPTNs. In turn, energy saving in a WPTN can be boosted by simply switching off the energy transmitter when the received energy is too weak for rectification. Therefore in this paper we propose, and experimentally evaluate, two "green" protocols for the control plane of static charger/mobile receiver WPTN aimed at optimizing the charger workflow to make WPTN green. Those protocols are: 'beaconing', where receivers advertise their presence to WPTN, and 'probing' exploiting the receiver feedback from WTPN on the level of received energy. We demonstrate that both protocols reduce the unnecessary WTPN uptime, however trading it for the reduced energy provision, compared to the base case of 'WPTN charger always on'. For example, our system (in our experiments) saves at most approx. 80% of energy and increases 5.5 times the efficiency with only approx. 17% less energy possibly harvested. Comment: submitted for possible publication. http://www.es.ewi.tudelft.nl/reports/ES-2015-01.pdf |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|