Downlink Performance Evaluation of NOMA Systems Based on Different OFDM Waveforms

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dc.authoridKabalci, Yasin/0000-0003-1240-817X
dc.contributor.authorKabalci, Yasin
dc.contributor.authorAli, Muhammad
dc.date.accessioned2024-11-07T13:23:54Z
dc.date.available2024-11-07T13:23:54Z
dc.date.issued2019
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description1st Global Power, Energy and Communication Conference (IEEE GPECOM) -- JUN 12-15, 2019 -- Nevsehir, TURKEY
dc.description.abstractNon-orthogonal multiple access (NOMA) schemes have emerged as an inspiring technology for next generation mobile communication systems. This paper firstly confirms the superiority of NOMA systems over orthogonal multiple access (OMA) schemes by considering orthogonal frequency division modulation (OFDM) waveform. Further, it is verified that coded NOMA systems based on low-density parity-check (LDPC) coding outperform uncoded NOMA systems in terms of bit error rate (BER) performance metric with respect to transmit power. To show the performance of OMA and NOMA systems, two cells each having a single base station (BS) are constructed. For simplicity, two devices are considered in OMA cell while four devices are used in NOMA cell which utilize multiple user superposition transmission (MUST) technique (downlink power-domain version of NOMA). Later, performance of the system is analyzed in terms of throughput and peak-to-average power ratio (PAPR) for downlink scenario. Lastly, performance of the considered system for different waveforms such as OFDM, weighted over lap and add (WOLA) and filtered OFDM (F-OFDM) is compared. According to obtained simulation results, WOLA waveform generally outperforms OFDM and F-OFDM waveforms in throughput, however, slight better results are being shown by F-OFDM waveform in high PAPR values.
dc.description.sponsorshipNevsehir Haci Bektas Veli Univ,IEEE,IEEE Reg 8,IEEE Turkey Sect,IEEE Ind Applicat Soc,IEEE Ind Elect Soc,IEEE Power & Energy Soc,Aalborg Univ,Univ Nova Lisboa,Gazi Univ
dc.identifier.endpage111
dc.identifier.isbn978-1-5386-8086-5
dc.identifier.scopus2-s2.0-85070610087
dc.identifier.scopusqualityN/A
dc.identifier.startpage106
dc.identifier.urihttps://hdl.handle.net/11480/13779
dc.identifier.wosWOS:000851517900021
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIEEE
dc.relation.ispartof2019 Ieee 1st Global Power, Energy and Communication Conference (Gpecom2019)
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectNOMA
dc.subjectOFDM
dc.subjectF-OFDM
dc.subjectWOLA
dc.subjectBER
dc.subjectthroughput
dc.subjectPAPR
dc.titleDownlink Performance Evaluation of NOMA Systems Based on Different OFDM Waveforms
dc.typeConference Object

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