Enhancing spectral efficiency with low complexity filtered-orthogonal frequency division multiplexing in visible light communication system

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dc.authorid0009-0007-9953-4828en_US
dc.contributor.authorHujijo, Hayder S. R.
dc.contributor.authorIlyas, Muhammad
dc.date.accessioned2024-04-27T12:19:06Z
dc.date.available2024-04-27T12:19:06Z
dc.date.issued2024en_US
dc.departmentEnstitüler, Lisansüstü Eğitim Enstitüsü, Elektrik ve Bilgisayar Mühendisliği Ana Bilim Dalıen_US
dc.description.abstractThe filtered-orthogonal frequency division multiplexing (F-OFDM) scheme has gained attention as a promising solution in the field of visible light communication (VLC) systems. One crucial aspect in VLC is the conversion of the complex F-OFDM signal into a real signal that corresponds with direct detection and intensity modulation. Traditionally, achieving a real F-OFDM signal has involved imposing Hermitian symmetry (HS) on the samples of the Inverse Fast Fourier transform (IFFT), which requires 2N-point IFFT and obtains an N-point FFT, thus adding complexity. In this study, a novel approach is presented and implemented, aiming to enhance spectral efficiency and reduce system complexity by generating a real F-OFDM signal without relying on HS. This approach is then compared with HS-free (HSF)-OFDM, direct current biased optical OFDM, and asymmetrically clipped optical OFDM. The suggested method offers a remarkable improvement of ~50% in the required IFFT/FFT volume. Consequently, this method reduces hardware complexity and power usage compared with the traditional F-OFDM method. Moreover, regarding error rates, the proposed method demonstrates better spectral efficiency than HSF-OFDM.en_US
dc.identifier.citationHujijo, H. S. R., Ilyas, M. (2024). Enhancing spectral efficiency with low complexity filtered-orthogonal frequency division multiplexing in visible light communication system. ETRI Journal. 10.4218/etrij.2023-0300en_US
dc.identifier.issn1225-6463
dc.identifier.scopus2-s2.0-85189180545
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://hdl.handle.net/20.500.12939/4670
dc.identifier.wosWOS:001189312200001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorHujijo, Hayder S. R.
dc.institutionauthorIlyas, Muhammad
dc.language.isoen
dc.publisherJohn Wiley and Sons Incen_US
dc.relation.ispartofETRI Journal
dc.relation.isversionof10.4218/etrij.2023-0300en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - İdari Personel ve Öğrencien_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBit error ratesen_US
dc.subjectComplexity reductionen_US
dc.subjectFiltered-OFDMen_US
dc.subjectSpectral efficiencyen_US
dc.subjectVisible light communicationen_US
dc.titleEnhancing spectral efficiency with low complexity filtered-orthogonal frequency division multiplexing in visible light communication system
dc.typeArticle

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