Citation

Touhami, Ridha and Alias, Mohamad Yusoff and Hussein, Yaseein Soubhi and Abdulkafi, Ayad Atiyah and Slimani, Djamal (2020) Combined Envelope Scaling with Modified SLM Method for PAPR Reduction in OFDM-Based VLC Systems. Journal of Optical Communications. ISSN 0173-4911

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Abstract

Orthogonal frequency-division multiplexing technique (OFDM) has been adopted widely as a modulation technique for radio frequency (RF) and optical communication systems such as visible-light communication (VLC) due to its high spectral efficiency and low-complexity implementation. VLC-OFDM is recommended in 5 G mobile communication. However, VLC-OFDM suffer from the high peak to-average power ratio (PAPR). In this paper, a modified selective mapping (MSLM) method is applied to the proposed system followed by a new envelope scaling process for further reductions in PAPR of VLC-OFDM system. Simulation results show that the proposed method reduces the PAPR by about 6.8 and 1.7 dB comparing with the original signal and the traditional SLM with a number of rotation vector U = 8, respectively.

Item Type:	Article
Uncontrolled Keywords:	Orthogonal frequency-division multiplexing
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	22 Dec 2020 05:52
Last Modified:	22 Dec 2020 05:52
URII:	http://shdl.mmu.edu.my/id/eprint/7981

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