{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T10:44:14Z","timestamp":1777632254796,"version":"3.51.4"},"reference-count":25,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2018,11,19]],"date-time":"2018-11-19T00:00:00Z","timestamp":1542585600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61501347"],"award-info":[{"award-number":["61501347"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Trans Emerging Tel Tech"],"published-print":{"date-parts":[[2018,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Nonorthogonal multiple access (NOMA), which is an effective technique to achieve high spectral efficiency, has been emerging as a candidate for the fifth\u2010generation multiple access. In addition, NOMA reflects a transition on the forms of power allocation comparing with the orthogonal multiple access (OMA). In this paper, two relay selection schemes are considered to evaluate the achieved performance of a NOMA\u2010based relaying network, ie, the max\u2010min relay selection (MMRS) and the two\u2010stage relay selection (TSRS) schemes. Exact expression analyses for the system outage probability using the MMRS and TSRS schemes are derived to evaluate the system performance under Nakagami\u2010<jats:italic>m<\/jats:italic> fading. The existence of the error floor, caused by the estimation error, is confirmed by the detailed analysis of the asymptotic result. By comparing NOMA with OMA, and comparing the MMRS scheme with the TSRS scheme, one can reveal that cooperative NOMA under Nakagami\u2010<jats:italic>m<\/jats:italic> fading and imperfect channel estimation can maintain superior performance gain than OMA.<\/jats:p>","DOI":"10.1002\/ett.3535","type":"journal-article","created":{"date-parts":[[2018,11,20]],"date-time":"2018-11-20T04:49:12Z","timestamp":1542689352000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["On cooperative NOMA relay selection under Nakagami\u2010<i>m<\/i> fading and imperfect channel estimation"],"prefix":"10.1002","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6860-0297","authenticated-orcid":false,"given":"Yangyang","family":"Zhang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Integrated Service Networks Xidian University  Xi'an China"}]},{"given":"Jianhua","family":"Ge","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Service Networks Xidian University  Xi'an China"}]},{"given":"Erchin","family":"Serpedin","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering Texas A&amp;M University  College Station TX"}]},{"given":"Redha M.","family":"Radaydeh","sequence":"additional","affiliation":[{"name":"Electrical Engineering Program, Department of Engineering and Technology Texas A&amp;M University\u2010Commerce  Commerce TX"}]},{"given":"Yifan","family":"Hu","sequence":"additional","affiliation":[{"name":"State Grid Zhumadian Power Supply Company  Henan China"}]}],"member":"311","published-online":{"date-parts":[[2018,11,19]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2016.2586143"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2017.2655044"},{"key":"e_1_2_7_4_1","doi-asserted-by":"crossref","unstructured":"YeY LiY WangD LuG.Power splitting protocol design for the cooperative NOMA with SWIPT. 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