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Energy saving in the optimization of the planning of fixed WiMAX with relays in hilly terrains: Impact of sleep modes and cell zooming

dc.contributor.authorVelez, Fernando J.
dc.contributor.authorOliveira, João
dc.contributor.authorRobalo, Daniel Luís Silveira
dc.contributor.authorHolland, Oliver
dc.contributor.authorAghvami, A. Hamid
dc.date.accessioned2024-04-15T08:35:34Z
dc.date.available2024-04-15T08:35:34Z
dc.date.issued2012-08
dc.description.abstractLayered and cooperative elements such as femto-cells and relays can improve performance or energy efficiency in mobile networks; however, they consume energy per se and their durations in operational state must therefore be minimised. This paper investigates the use of relays in WiMAX network deployments and concentrates on the cost/revenue performance and energy efficiency trade-off in such cases. Specifically, it investigates the performance achievable by networks that are deployed in various sectorization configurations with and without relays, and matches this to varying traffic loads at different times of the day to maximise the use of sleep modes, where possible, by relays, also in consideration of coverage requirements. It does this for scenarios based on pioneering propagation measurements in the hilly area of Covilhã, Portugal. Results show that through the maximal use of power saving by relays at low traffic times, considerable energy savings in the relays' power consumption are achievable, typically 47.6%. These savings are shown to map to a financial saving for the operator of 10% in the operation and maintenance cost. However, it is also demonstrated that such solutions have to be used cautiously so as to maintain coverage requirements and not decrease the profit in challenging propagation scenarios such as investigated in this paper.pt_PT
dc.description.sponsorshipFCT; ICT-ACROPOLIS; COST IC 0905 TERRA; COST IC 0902; COST IC 1004pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFernando J. Velez, João Oliveira, Daniel Robalo, Oliver Holland and A. Hamid Aghvami, “Energy Saving in the Optimization of the Planning of Fixed WiMAX with Relays in Hilly Terrains: Impact of Sleep Modes and Cell zooming,” (invited paper) in Proc. of ISWCS 2012 – The Ninth International Symposium on Wireless Communication Systems (invited Session on Green Wireless Communications), Paris, France, Aug. 2012.pt_PT
dc.identifier.doi10.1109/ISWCS.2012.6328436pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/14380
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIEEEpt_PT
dc.relationStrategic Project - LA 8 - 2011-2012
dc.relationOPPORTUNISTIC-CR - Opportunistic Aggregation of Spectrum and Cognitive Radios: Consequences on Public Policies
dc.relationPROENERGY-WSN: Prototypes for Efficient Energy Self-sustainable Wireless Sensor Networks
dc.relationPlanning and Optimisation for the Coexistence of Mobile and Wireless Networks Towards Long Term Evolution
dc.relation.publisherversionhttps://ieeexplore.ieee.org/document/6328436pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nd/4.0/pt_PT
dc.subjectBroadband communicationpt_PT
dc.subjectWiMAXpt_PT
dc.subjectCellular planningpt_PT
dc.subjectEconomicspt_PT
dc.subjectRelayspt_PT
dc.subjectGreen communicationspt_PT
dc.subjectCell zoomingpt_PT
dc.titleEnergy saving in the optimization of the planning of fixed WiMAX with relays in hilly terrains: Impact of sleep modes and cell zoomingpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleStrategic Project - LA 8 - 2011-2012
oaire.awardTitleOPPORTUNISTIC-CR - Opportunistic Aggregation of Spectrum and Cognitive Radios: Consequences on Public Policies
oaire.awardTitlePROENERGY-WSN: Prototypes for Efficient Energy Self-sustainable Wireless Sensor Networks
oaire.awardTitlePlanning and Optimisation for the Coexistence of Mobile and Wireless Networks Towards Long Term Evolution
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FEEI%2FLA0008%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEEA-TEL%2F115981%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEEA-TEL%2F122681%2F2010/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/256624/EU
oaire.citation.conferencePlaceParis, Francept_PT
oaire.citation.endPage595pt_PT
oaire.citation.startPage591pt_PT
oaire.citation.titleISWCS 2012 – The Ninth International Symposium on Wireless Communication Systems (invited Session on Green Wireless Communications)pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
oaire.fundingStreamFP7
person.familyNameVelez
person.familyNameRobalo
person.givenNameFernando J.
person.givenNameDaniel
person.identifier.ciencia-id1510-E247-C9DB
person.identifier.orcid0000-0001-9680-123X
person.identifier.orcid0000-0002-2425-1555
person.identifier.ridN-8884-2013
person.identifier.scopus-author-id24332960100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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