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Article: Cross-Layer power allocation in nonorthogonal multiple access systems for statistical QoS provisioning

TitleCross-Layer power allocation in nonorthogonal multiple access systems for statistical QoS provisioning
Authors
Keywords5G
Delay QoS requirement
Effective capacity
NOMA
Power allocation
Issue Date2017
Citation
IEEE Transactions on Vehicular Technology, 2017, v. 66, n. 12, p. 11388-11393 How to Cite?
AbstractPower allocation is a critical issue in the physical layer of power-domain nonorthogonal multiple access (NOMA) systems. However, existing power allocation schemes have not considered the delay quality of service (QoS) requirement in the datalink layer of users, and hence may not ensure the desired delay QoS requested by the services in the upper layers. Different from existing works, we apply the statistical QoS theory into NOMA systems and formulate the physical-datalink cross-layer power allocation problem as a stochastic optimization problem under different delay QoS constraints. Also, we show that the formulated problem is quasi-concave and propose a bisection-based cross-layer power allocation algorithm. Simulation results show that the proposed algorithm is able to converge to the optimal solution obtained by exhaustive search. Also, the proposed scheme outperforms existing fixed NOMA and time-division multiple access based schemes in terms of max–min effective capacity.
Persistent Identifierhttp://hdl.handle.net/10722/316474
ISSN
2023 Impact Factor: 6.1
2023 SCImago Journal Rankings: 2.714
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLiu, Gang-
dc.contributor.authorMa, Zheng-
dc.contributor.authorChen, Xianhao-
dc.contributor.authorDing, Zhiguo-
dc.contributor.authorRichard Yu, F.-
dc.contributor.authorFan, Pingzhi-
dc.date.accessioned2022-09-14T11:40:32Z-
dc.date.available2022-09-14T11:40:32Z-
dc.date.issued2017-
dc.identifier.citationIEEE Transactions on Vehicular Technology, 2017, v. 66, n. 12, p. 11388-11393-
dc.identifier.issn0018-9545-
dc.identifier.urihttp://hdl.handle.net/10722/316474-
dc.description.abstractPower allocation is a critical issue in the physical layer of power-domain nonorthogonal multiple access (NOMA) systems. However, existing power allocation schemes have not considered the delay quality of service (QoS) requirement in the datalink layer of users, and hence may not ensure the desired delay QoS requested by the services in the upper layers. Different from existing works, we apply the statistical QoS theory into NOMA systems and formulate the physical-datalink cross-layer power allocation problem as a stochastic optimization problem under different delay QoS constraints. Also, we show that the formulated problem is quasi-concave and propose a bisection-based cross-layer power allocation algorithm. Simulation results show that the proposed algorithm is able to converge to the optimal solution obtained by exhaustive search. Also, the proposed scheme outperforms existing fixed NOMA and time-division multiple access based schemes in terms of max–min effective capacity.-
dc.languageeng-
dc.relation.ispartofIEEE Transactions on Vehicular Technology-
dc.subject5G-
dc.subjectDelay QoS requirement-
dc.subjectEffective capacity-
dc.subjectNOMA-
dc.subjectPower allocation-
dc.titleCross-Layer power allocation in nonorthogonal multiple access systems for statistical QoS provisioning-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TVT.2017.2725641-
dc.identifier.scopuseid_2-s2.0-85023610360-
dc.identifier.volume66-
dc.identifier.issue12-
dc.identifier.spage11388-
dc.identifier.epage11393-
dc.identifier.isiWOS:000418399000061-

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