M-CSK moduled flip-OFDM communication systems in visible light communications

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Tarih

2023

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Gazi Univ, Fac Engineering Architecture

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

In this paper, it is proposed to use M-level color shift keying (M-CSK) modulation without vibration problem in Flip-OFDM waveform, which is an efficient unipolar version of OFDM for optical wireless communication systems. The performance of the proposed scheme is compared with the M-QAM modulated Flip-OFDM and M-CSK-modulated VLC OFDM methods based on the criteria of bit-error-rate (BER) and peak average power ratio (PAPR). The BER performance has also been analyzed, firstly by using uncoded proposed scheme then two channel coding techniques i.e.Reed-Solomon (RS) channel encoder and Convolutional Codes (CC) by using two channels i.e. AWGN and optical LOS channel. The entire channel coding techniques is carried out using QAM modulation. The simulation results show that, the proposed M-CSK Flip-OFDM method achieves good performance at high SNR values for both AWGN channel and optical LOS channel and also with applying RS and CC, the BER performance is also improved.

Açıklama

Anahtar Kelimeler

CSK modulation, Flip-OFDM, visible light communication, optical waveform

Kaynak

Journal of the Faculty of Engineering and Architecture of Gazi University

WoS Q Değeri

Q3

Scopus Q Değeri

Q2

Cilt

38

Sayı

4

Künye