Hybrid PAPR reduction schemes for different OFDM-based VLC systems

• Autorzy: El-Ganiny Mohamed Y. , Khalaf Ashraf A. M. , Hussein Aziza I. , Hamed Hesham F. A.

Identyfikatory

DOI

10.24425/opelre.2022.141951

• Języki publikacji: EN

Abstrakty

EN

Orthogonal frequency division multiplexing has been widely used in many radio frequency wireless communication standards as a preferable multicarrier modulation scheme. The modulated signals of a conventional orthogonal frequency division multiplexing system are complex and bipolar. In intensity-modulated direct detection optical wireless communications, transmitted signals should be real and unipolar due to non-coherent emissions of an optical light emitting diode. In this paper, different hybrid optical systems have been proposed to satisfy real and unipolar signals. Peak-to-average power ratio is one of the biggest challenges for orthogonal frequency division multiplexing-based visible light communications. They are based on a combination of non-linear companding techniques with spreading or precoding techniques. Simulation evaluation is performed under direct current-biased optical orthogonal frequency division multiplexing, asymmetrically clipped optical orthogonal frequency division multiplexing, and Flip-orthogonal frequency division multiplexing systems in terms of peak-to-average power ratio, bit error rate, and spectral efficiency. The proposed schemes are investigated to determine a scheme with a low peak-to-average power ratio and an acceptable bit error rate. MATLABTM software has been successfully used to show the validity of the proposed schemes.

Słowa kluczowe

EN

visible light communication; peak-to-average power ratio; bit error rate

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2022
• Tom: Vol. 30, No. 3
• Strony: art. no. e141951
• Opis fizyczny: Bibliogr. 33 poz., rys., wykr., tab.

Twórcy

autor

El-Ganiny Mohamed Y.

• Department of Electrical Engineering, Higher Technological Institute, 10th of Ramadan City, Sharqia, Egypt

• https://orcid.org/0000-0001-9899-9673

autor

Khalaf Ashraf A. M.

• Department of Electrical Engineering, Faculty of Engineering, Minia University, Minia 61519, Egypt

• https://orcid.org/0000-0003-3344-5420

autor

Hussein Aziza I.

• Electrical and Computer Engineering Department, Effat University, Jeddah, Kingdom of Saudi Arabia

autor

Hamed Hesham F. A.

• Department of Telecommunications Engineering, Egyptian Russian University, Badr City, Egypt

Bibliografia

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