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dc.contributor.authorArzykulov, Sultangali
dc.contributor.authorNauryzbayev, Galymzhan
dc.contributor.authorCelik, Abdulkadir
dc.contributor.authorEltawil, Ahmed
dc.date.accessioned2021-12-12T11:55:52Z
dc.date.available2021-12-12T11:55:52Z
dc.date.issued2021
dc.identifier.citationArzykulov, S., Nauryzbayev, G., Celik, A., & Eltawil, A. M. (2021). Hardware and Interference Limited Cooperative CR-NOMA Networks Under Imperfect SIC and CSI. IEEE Open Journal of the Communications Society, 2, 1473–1485. doi:10.1109/ojcoms.2021.3091606
dc.identifier.issn2644-125X
dc.identifier.doi10.1109/OJCOMS.2021.3091606
dc.identifier.urihttp://hdl.handle.net/10754/673989
dc.description.abstractThe conflation of cognitive radio (CR) and non-orthogonal multiple access (NOMA) concepts is a promising approach to fulfill the massive connectivity goals of future networks given the spectrum scarcity. Accordingly, this paper investigates the performance of a cooperative CR-NOMA network in the presence of system impairments and interference. Our analysis is involved with the derivation of the end-to-end outage probability for primary and secondary networks by accounting for channel state information (CSI), hardware imperfections, and residual interference caused by successive interference cancellation errors as well as coexisting primary/secondary users. Moreover, a mathematically tractable upper bound on spectral efficiency (SE) with its high-SNR approximations are derived. Besides, we propose an optimal power allocation scheme for CR-NOMA users to guarantee their outage and SE fairness. The numerical results validated by Monte Carlo simulations show that the CR-NOMA network provides a superior outage performance over orthogonal multiple access. Furthermore, the higher level of system imperfections leads to the performance degradation of the CR-NOMA networks. As imperfections become more severe, the CR-NOMA is observed to deliver relatively inferior outage and SE performance as compared to the perfect system scenario.
dc.description.sponsorshipThis work was supported in part by the King Abdullah University of Science and Technology (KAUST), in part by the Communication and Computing Systems Lab, and in part by the Nazarbayev University Faculty Development Competitive Research Program under Grant 240919FD3935.
dc.publisherIEEE
dc.relation.urlhttps://ieeexplore.ieee.org/document/9462327/
dc.relation.urlhttps://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9462327
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCognitive radio
dc.subjectcooperative non-orthogonal multiple access
dc.subjectoutage probability (OP)
dc.subjectspectral efficiency
dc.subjecthardware impairment
dc.titleHardware and Interference Limited Cooperative CR-NOMA Networks Under Imperfect SIC and CSI
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Science and Engineering (CEMSE) Division
dc.identifier.journalIEEE Open Journal of the Communications Society
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Nazarbayev University, Nur-Sultan, Kazakhstan
dc.identifier.volume2
dc.identifier.pages1473-1485
dc.identifier.arxivid2004.10499
kaust.personArzykulov, Sultangali
kaust.personCelik, Abdulkadir
kaust.personEltawil, Ahmed Mohamed
refterms.dateFOA2021-12-12T11:58:07Z
kaust.acknowledged.supportUnitCompetitive Research


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This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/
Except where otherwise noted, this item's license is described as This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/