{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T09:52:22Z","timestamp":1753869142309,"version":"3.41.2"},"reference-count":73,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2022,6,8]],"date-time":"2022-06-08T00:00:00Z","timestamp":1654646400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Trans Emerging Tel Tech"],"published-print":{"date-parts":[[2022,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This article considers non\u2010orthogonal multiple access (NOMA) enabled full\u2010duplex (FD) underlay cognitive relay networks (ie, NOMA\u2010FDCRNs) with partial relay selection scheme. The secondary network, where NOMA is used, consists of a secondary base station (SBS) sending messages to two secondary users (SUs), that is, a near SU (SU1) and a far SU (SU2), by utilizing a dedicated relay selected from a set of FD decode\u2010and\u2010forward nodes. We obtain analytical expressions for the outage probabilities (OPs) of the SUs and then deduce the asymptotic OP expressions as well. Further, expressions are obtained for the optimal power allocation (OPA) coefficients at the SBS and at the relay that separately maximizes the throughput of the secondary network in NOMA\u2010FDCRN. Furthermore, the jointly optimal power allocation (JOPA) coefficients that maximize the throughput are also determined. The analyses consider (i) imperfect successive interference cancelation conditions, (ii) the tolerable interference limit of the primary receiver, (iii) the secondary nodes' maximum transmit power values, (iv) interference generated by the primary transmitter, and (v) the residual self\u2010interference (RSI) at the FD relay. It is shown that the proposed OPA coefficients at the SBS and the JOPA can mitigate the impact of RSI and significantly improve the OP and throughput performance. The numerical results show that the proposed JOPA approach provides 32% and 106% improvement of throughput compared to random power allocation (RPA) and equal power allocation (EPA) strategies, respectively. The OP of SU1 and SU2 reduce by 68% and 73%, respectively, under the proposed JOPA compared to RPA, while compared to EPA, the OP of SU1 and SU2 reduce by 96% and 97%, respectively.<\/jats:p>","DOI":"10.1002\/ett.4569","type":"journal-article","created":{"date-parts":[[2022,6,9]],"date-time":"2022-06-09T05:40:57Z","timestamp":1654753257000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Optimal power allocation for non\u2010orthogonal multiple access enabled full\u2010duplex underlay cognitive relay networks under partial relay selection"],"prefix":"10.1002","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9846-1782","authenticated-orcid":false,"given":"V","family":"Aswathi","sequence":"first","affiliation":[{"name":"Department of Electronics and Communication Engineering National Institute of Technology Calicut Kozhikode Kerala India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4399-3885","authenticated-orcid":false,"given":"A V","family":"Babu","sequence":"additional","affiliation":[{"name":"Department of Electronics and Communication Engineering National Institute of Technology Calicut Kozhikode Kerala India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,6,8]]},"reference":[{"key":"e_1_2_11_2_1","unstructured":"SeriesM.IMT vision\u2014Framework and overall objectives of the future development of IMT for 2020 and beyond recommendation ITU\u2010R M; 2083 Geneva Switzerland: International Telecommunication Union;2015."},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/OJCOMS.2020.3010270"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1109\/MWC.2017.1700069"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1109\/OJCOMS.2020.2969899"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2017.1500657CM"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1109\/LWC.2020.2994355"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2018.1700845"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2012.6146495"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2015.2441064"},{"key":"e_1_2_11_11_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13638-019-1629-4"},{"key":"e_1_2_11_12_1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2019.2959001"},{"issue":"11","key":"e_1_2_11_13_1","article-title":"Performance analysis of cooperative non\u2010orthogonal multiple access with improved time switching simultaneous wireless information and power transfer protocol","volume":"30","author":"Amin AA","year":"2020","journal-title":"Trans Emerg Telecommun Technol"},{"issue":"5","key":"e_1_2_11_14_1","article-title":"Cooperative non\u2010orthogonal multiple access with SWIPT over Nakagami\u2010m fading channels","volume":"30","author":"Kader MF","year":"2020","journal-title":"Trans Emerg Telecommun Technol"},{"key":"e_1_2_11_15_1","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2004.839380"},{"key":"e_1_2_11_16_1","doi-asserted-by":"publisher","DOI":"10.1109\/JSTSP.2010.2093210"},{"key":"e_1_2_11_17_1","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2018.1700687"},{"key":"e_1_2_11_18_1","doi-asserted-by":"publisher","DOI":"10.1109\/MWC.2018.1700113"},{"key":"e_1_2_11_19_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2014.2338297"},{"key":"e_1_2_11_20_1","doi-asserted-by":"crossref","unstructured":"Van HoaH BaoVNQ.Outage performance of cooperative underlay cognitive radio with non\u2010orthogonal multiple access. 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