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Economic trade-off in the optimization of carrier aggregation with enhanced multi-band scheduling in LTE-Advanced scenarios

2015-03Journal article Open access
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dc.contributor.authorRobalo, Daniel
dc.contributor.authorVelez, Fernando
dc.date.accessioned2024-03-25T14:29:30Z
dc.date.available2024-03-25T14:29:30Z
dc.date.issued2015-03
dc.description.abstractThis work proposes Long Term Evolution-Advanced (LTE-A) integrated Common Radio Resource Management (iCRRM) for inter-band carrier aggregation (CA) between band 7 (2.6 GHz) and band 20 (800 MHz), considering bandwidths of 5 and 20 MHz. The iCRRM entity performs component carrier (CC) scheduling and increases user’s quality of service and experience while considering mobile video traffic. The performance from a new enhanced multi-band scheduling (EMBS) algorithm is compared to the one from a basic multi-band scheduler (BMBS), an integer programming-based general multi-band scheduling (GMBS) and the case without CA. EMBS involves reduced optimization scheduling complexity and allows the allocation of UEs to one or both CCs simultaneously, whereas both BMBS and GMBS only support one CC per UE. Simulations results have shown that, for 5 MHz CCs and cell radius equal to 1,000 m, with EMBS and GMBS, the 3GPP and ITU-T’s 1% packet loss ratio (PLR) threshold is only exceeded above 58 UEs (goodputs of 7.48 and 7.40 Mbps, respectively), while with BMBS only 54 UEs (6.9 Mbps) are supported. Without CA, the minimum obtained PLR is approximately 2%. For CCs with bandwidth of 20 MHz, only EMBS has been considered. The PLR threshold is not exceeded up to 40 users and the value of QoE raises from 2.86 (for 5-MHz bandwidth) to 3.96, while a gain of 9.56 occurs in supported goodput, increasing from 7.48 to 71.53 Mbps. Results from the cost/revenue trade-off have shown substantial improvements by using CA. Although the profit increases as the price per megabyte increases, it is verified that prices can be much lower if a bandwidth of 20 MHz is available. Assuming values for the supported goodput under the PLR ≤1% range and 20 MHz CCs, it has been shown that the percentage of profit decreases at a considerably higher rate (compared to 5-MHz bandwidth), due to the lower rate of decrease from the curve for costs. Considering PLR ≤1%, the profit curve for 20 MHz CCs at 0.001 € /MByte is similar to the one for 5 MHz CCs and price of 0.01 € /MByte for the smallest cell sizes (few hundreds of meters) but starts to decrease faster for larger cells.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDaniel Robalo and Fernando J. Velez, “Economic Tradeoff in the Optimization of Enhanced Multi-Band Scheduling for Carrier Aggregation in LTE-Advanced Scenarios,” EURASIP Journal on Wireless Communications and Networking – Special Issue on Technical Advances in the Design and Deployment of Future Heterogeneous Networks, vol. 2015(189), no. 1, Mar. 2015, pp. 1-19, doi: 10.1186/s13638-015-0371-9.pt_PT
dc.identifier.doi10.1186/s13638-015-0371-9pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/14312
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherEURASIPpt_PT
dc.relation2013 - Strategic Project
dc.relationInstituto de Telecomunicações
dc.relation.publisherversionhttps://jwcn-eurasipjournals.springeropen.com/articles/10.1186/s13638-015-0371-9pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nd/4.0/pt_PT
dc.subjectEconomic trade-offpt_PT
dc.subjectOptimizationpt_PT
dc.subjectCarrier aggregationpt_PT
dc.subjectEnhanced multi-band schedulingpt_PT
dc.subjectLTE-Advancedpt_PT
dc.titleEconomic trade-off in the optimization of carrier aggregation with enhanced multi-band scheduling in LTE-Advanced scenariospt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitle2013 - Strategic Project
oaire.awardTitleInstituto de Telecomunicações
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FEEI%2FLA0008%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEEA%2F50008%2F2013/PT
oaire.citation.issue1pt_PT
oaire.citation.titleEURASIP Journal on Wireless Communications and Networkingpt_PT
oaire.citation.volume2015pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameRobalo
person.familyNameVelez
person.givenNameDaniel
person.givenNameFernando J.
person.identifier.ciencia-id1510-E247-C9DB
person.identifier.orcid0000-0002-2425-1555
person.identifier.orcid0000-0001-9680-123X
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.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc5bd0129-e570-4489-a490-98a4809bb661
relation.isAuthorOfPublicationeb831c87-4af4-4978-ba42-43d4d55dbe1f
relation.isAuthorOfPublication.latestForDiscoveryeb831c87-4af4-4978-ba42-43d4d55dbe1f
relation.isProjectOfPublicationc854cbfd-109b-4235-b56b-5c42e367905c
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