On the performance of a virtual user pairing scheme to efficiently utilize the spectrum of unpaired users in NOMA
DC Field | Value | Language |
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dc.contributor.author | Shahab, Muhammad Basit | - |
dc.contributor.author | Shin, Soo Young | - |
dc.date.available | 2020-04-24T10:25:57Z | - |
dc.date.created | 2020-03-31 | - |
dc.date.issued | 2017-12 | - |
dc.identifier.issn | 1874-4907 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/444 | - |
dc.description.abstract | This paper evaluates the performance of a virtual user pairing scheme that efficiently utilizes the spectrum of unpaired users in non-orthogonal multiple access (NOMA), termed as VP-NOMA. The scheme aims at utilizing the frequency bands of those users which remain unpaired due to the non-uniform distribution of users in a cellular area. We consider a case where the cell edge users are more than the cell center users, so that complete one-to-one correspondence does not exist between all cell center and cell edge users to be accommodated/paired using conventional NOMA (C-NOMA) user pairing. Thus, some cell edge users remain unpaired, and are served using conventional multiple access (OMA) schemes. In such scenario, VP-NOMA pairs a single cell center user with two or more clustered (closely located) cell edge users over non-overlapping frequency bands, thus enabling the cell center user to efficiently use the frequency bands of these previously unpaired cell edge users. Performance of VP-NOMA in terms of ergodic sum capacity (ESC), outage probability (OP), and outage sum capacity (OSC), is analyzed through comprehensive mathematical derivations and simulations for a generalized system model. Moreover, the mathematical analysis is validated through close concordance between analytical and simulation results of ESC, OP, and OSC. (C) 2017 Elsevier B.V. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | NONORTHOGONAL MULTIPLE-ACCESS | - |
dc.subject | 5G | - |
dc.subject | DOWNLINK | - |
dc.subject | MAXIMIZATION | - |
dc.subject | SYSTEMS | - |
dc.title | On the performance of a virtual user pairing scheme to efficiently utilize the spectrum of unpaired users in NOMA | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Shin, Soo Young | - |
dc.identifier.doi | 10.1016/j.phycom.2017.10.007 | - |
dc.identifier.scopusid | 2-s2.0-85032743975 | - |
dc.identifier.wosid | 000417977900029 | - |
dc.identifier.bibliographicCitation | PHYSICAL COMMUNICATION, v.25, pp.492 - 501 | - |
dc.citation.title | PHYSICAL COMMUNICATION | - |
dc.citation.volume | 25 | - |
dc.citation.startPage | 492 | - |
dc.citation.endPage | 501 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | NONORTHOGONAL MULTIPLE-ACCESS | - |
dc.subject.keywordPlus | 5G | - |
dc.subject.keywordPlus | DOWNLINK | - |
dc.subject.keywordPlus | MAXIMIZATION | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordAuthor | User pairing | - |
dc.subject.keywordAuthor | Conventional non-orthogonal multiple access (C-NOMA) | - |
dc.subject.keywordAuthor | Virtual pairing based NOMA (VP-NOMA) | - |
dc.subject.keywordAuthor | Ergodic sum capacity (ESC) | - |
dc.subject.keywordAuthor | Outage probability (OP) | - |
dc.subject.keywordAuthor | Outage sum capacity (OSC) | - |
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