An Investigation of the Effects of the Transform Techniques in Optical-OFDM Systems
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Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Electrical and Electronics Engineers Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, it is proposed to adapt the zero-tail discrete Fourier transform spread OFDM (ZT DFT-s OFDM) waveform to the visible light communication system, which is used as an alternative to OFDM in radio frequency (RF) communication systems. It is aimed to use ZT DCT-s and ZT DST-s OFDM waveforms in optical OFDM systems by replacing conversion techniques such as discrete cosine transform (DCT) and discrete sine transform (DST) with DFT-s block in ZT DFT-s OFDM waveform. Numerical simulation studies are carried out to test the performance of the proposed ZT DCT-s/DFT-s/DST-s optical OFDM waveforms and compare them with other optical OFDM techniques such as ACO-OFDM and DCO-OFDM. From the obtained numerical results, it is understood that the recommended ZT DCT-s, ZT DFT-s and ZT DST-s O-OFDM waveforms, without sacrificing bandwidth, have a better PAPR performance of approximately 2.8 dB than the DCO-OFDM technique and 9.5 dB better than the ACO-OFDM waveform. © 2022 IEEE.
Açıklama
30th Signal Processing and Communications Applications Conference -- SIU 2022 -- 15 May 2022 through 18 May 2022 -- Safranbolu -- 182415
Anahtar Kelimeler
ACO-OFDM, band efficiency, DCO-OFDM, visible ligth communication, ZT DCT-s/DFT-s/DST-s O-OFDM
Kaynak
2022 30th Signal Processing and Communications Applications Conference, SIU 2022
WoS Q Değeri
Scopus Q Değeri
N/A
