A Novel Hermitian Symmetriless Optical OFDM Technique for Visible Light Communication Systems Görünür Işik Haberleşme Sistemleri Için Hermityen Simetrisiz Yeni Bir Optik OFDM Tekniǧi


Karakoc E., Senel M. C., Ozen B., Ozen A.

30th Signal Processing and Communications Applications Conference, SIU 2022, Safranbolu, Turkey, 15 - 18 May 2022 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/siu55565.2022.9864935
  • City: Safranbolu
  • Country: Turkey
  • Keywords: band efficiency, Flip-OFDM, Hermitian symmetriless optical OFDM, HS-Less Flip-OFDM, optical OFDM, visible light communication
  • Kayseri University Affiliated: No

Abstract

© 2022 IEEE.In this study, a new optical OFDM system that does not use Hermitian symmetry is proposed to increase the band efficiency of the Flip-OFDM system, which is one of the most important optical OFDM techniques. The proposed optical OFDM system consists of the combination of the Hermitian symmetry-free Flip-OFDM and the time division multiplexing method (HS-Less Flip-OFDM). Computer simulation studies are carried out to test the numerical results obtained with the proposed optical OFDM system and to compare optical OFDM methods such as classical VLC-OFDM, classical Flip-OFDM, ACO-OFDM and DCO-OFDM. From the obtained numerical results, it is understood that the proposed HS-Less Flip-OFDM system provides a band efficiency of 50% against the classical Flip-OFDM and DCO-OFDM techniques and 75% against the ACO-OFDM technique without sacrificing BER performance.