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dc.contributor.authorWang, Anyue
dc.contributor.authorLei, Lei
dc.contributor.authorLagunas Targarona, Eva
dc.contributor.authorPérez Neira, Ana Isabel
dc.contributor.authorChatzinotas, Simeon
dc.contributor.authorOttersten, Bjorn
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2020-02-25T13:44:37Z
dc.date.available2020-02-25T13:44:37Z
dc.date.issued2019
dc.identifier.citationWang, A. [et al.]. On fairness optimization for NOMA-enabled multi-beam satellite systems. A: IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications. "2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) took place September 8-11, 2019 in Istanbul, Turkey". Institute of Electrical and Electronics Engineers (IEEE), 2019, p. 1-6.
dc.identifier.isbn978-1-5386-8110-7
dc.identifier.urihttp://hdl.handle.net/2117/178612
dc.description© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
dc.description.abstractIn a multi-beam satellite communication system, traffic requests are typically asymmetric across beams and highly heterogeneous among terminals. In practical operations, it is important to achieve a good match between the offered and requested traffic, i.e., to improve the performance of Offered Capacity to requested Traffic Ratio (OCTR). Due to satellites' payload constraints and limited flexibilities, it is a challenging task for resource optimization. In this paper, we tackle this issue by formulating a max-min resource allocation problem, taking fairness into account such that the lowest OCTR can be maximized. To exploit the potential synergies, we introduce Non-Orthogonal Multiple Access (NOMA) to enable aggressive frequency reuse and mitigate intra-beam interference. Although NOMA has proven its capabilities in improving throughput and fairness in 5G terrestrial networks, for multi-beam satellite systems it is unclear if NOMA can help to enhance the OCTR performance, and hence is worth quantifying how much gain it can bring. To solve the problem, we design a suboptimal algorithm to firstly decompose the original problem into multiple convex subproblems by fixing power allocation for each beam, and secondly adjust beam power to improve the minimum OCTR in iterations. Numerical results show the convergence of the proposed algorithm and the superiority of the proposed NOMA scheme in max-min OCTR.
dc.format.extent6 p.
dc.language.isoeng
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Satèl·lits i ràdioenllaços
dc.subject.lcshArtificial satellites in navigation
dc.subject.other5G mobile communication
dc.subject.otherConvex programming
dc.subject.otherInterference suppression
dc.subject.otherIterative methods
dc.subject.otherMinimax techniques
dc.subject.otherMulti-access systems
dc.subject.otherRadiofrequency interference
dc.subject.otherResource allocation
dc.subject.otherSatellite communication
dc.subject.otherTelecommunication traffic
dc.subject.otherWireless channels
dc.titleOn fairness optimization for NOMA-enabled multi-beam satellite systems
dc.typeConference report
dc.subject.lemacSatèl·lits artificials en navegació
dc.identifier.doi10.1109/PIMRC.2019.8904429
dc.identifier.dlIEEE Catalog
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://ieeexplore.ieee.org/document/8904429
dc.rights.accessOpen Access
local.identifier.drac26999496
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/TEC2017-90093-C3-1-R/ES/INTERFAZ RADIO PARA SISTEMAS HIBRIDOS TERRESTRE%2FSATELITE DE 5G Y FUTUROS/
local.citation.authorWang, A.; Lei, L.; Lagunas, E.; Perez, A.; Chatzinotas, S.; Ottersten, B.
local.citation.contributorIEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications
local.citation.publicationName2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) took place September 8-11, 2019 in Istanbul, Turkey
local.citation.startingPage1
local.citation.endingPage6


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