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Charging Your Smartphones on Public Commuters via Wireless Energy Transfer

Xu, Wenzheng; Liang, Weifa; Hu, Su; Lin, Xiaola; Peng, Jian

Description

Smartphones now become an indispensable part of our daily life. However, their continuing operations consume lots of battery energy. For example, a fully-charged smartphone usually cannot support its continuing operation for a whole day. A fundamental problem related to this energy issue is how to prolong the smartphone lifetime so that it can last as long as possible to meet its user needs. Wireless energy transfer has been demonstrated as a promising technique to address this challenge. In...[Show more]

dc.contributor.authorXu, Wenzheng
dc.contributor.authorLiang, Weifa
dc.contributor.authorHu, Su
dc.contributor.authorLin, Xiaola
dc.contributor.authorPeng, Jian
dc.coverage.spatialNanjing, China
dc.date.accessioned2016-06-14T23:21:19Z
dc.date.created14-16 December 2015
dc.identifier.isbn9781467385909
dc.identifier.urihttp://hdl.handle.net/1885/103839
dc.description.abstractSmartphones now become an indispensable part of our daily life. However, their continuing operations consume lots of battery energy. For example, a fully-charged smartphone usually cannot support its continuing operation for a whole day. A fundamental problem related to this energy issue is how to prolong the smartphone lifetime so that it can last as long as possible to meet its user needs. Wireless energy transfer has been demonstrated as a promising technique to address this challenge. In this paper, we study the smartphone charging problem, using wireless chargers deployed on public commuters, e.g., subway trains, to charge energy-critical smartphones when their users take subway trains to work or go home. Since the residual energy of different smartphones are significantly different, the charging satisfactions of different users are essentially different too. In this paper we formulate this charging problem as a novel optimization problem that allocates limited wireless chargers on subway trains to charge energy-critical smartphones such that the overall charging satisfaction of mobile users is maximized, for a given monitoring period (e.g., one day). Specifically, we first devise a 1 over 3-approximation algorithm if the travel trajectory of each smartphone user in the monitoring period is given; otherwise, we devise an online algorithm dealing with dynamic energy-critical smartphone charging requests. We finally evaluate the performance of the proposed algorithms through experimental simulations with a real dataset of subway-taking in San Francisco. The experimental results show that the proposed algorithms are very promising, and 93.9% of energy-critical user smartphones can be satisfactorily charged in one-day monitoring period
dc.publisherIEEE
dc.relation.ispartofseries2015 IEEE 34th International Performance Computing and Communications Conference (IPCCC)
dc.sourceCharging Your Smartphones on Public Commuters via Wireless Energy Transfer
dc.titleCharging Your Smartphones on Public Commuters via Wireless Energy Transfer
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2015
local.identifier.absfor080201 - Analysis of Algorithms and Complexity
local.identifier.absfor100510 - Wireless Communications
local.identifier.ariespublicationu4334215xPUB1607
local.type.statusPublished Version
local.contributor.affiliationXu, Wenzheng, Sichuan University
local.contributor.affiliationLiang, Weifa, College of Engineering and Computer Science, ANU
local.contributor.affiliationHu, Su, Sun Yat-Sen University
local.contributor.affiliationLin, Xiaola, Sun Yat-Sen University
local.contributor.affiliationPeng, Jian, Sichuan University
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage8
local.identifier.doi10.1109/PCCC.2015.7410303
local.identifier.absseo970108 - Expanding Knowledge in the Information and Computing Sciences
local.identifier.absseo890104 - Mobile Telephone Networks and Services
dc.date.updated2016-06-14T09:04:17Z
CollectionsANU Research Publications

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