Investigation of hardware equalizer based on a bridged-T network for high-speed VLC

Ab Aziz, Siti Hajar and Mohd Nor, Norhanis Aida and Ghassemlooy, Zabih and Zvanovec, Stanislav and Bohata, Jan (2024) Investigation of hardware equalizer based on a bridged-T network for high-speed VLC. In: 2024 14th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), 17-19 July 2024, Rome, Italy.

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Abstract

This paper comprehensively investigates a bridged-T pre-equalizer circuit (BTEC) designed for a highspeed visible light communication (VLC) system. The circuit is intended to mitigate the bandwidth limitation of light-emitting diodes (LEDs) in the VLC system. We integrate the advanced design system and MATLAB to analyze the BTEC using scattering parameters S11, S12, S21, and S22. The BTEC is fabricated using standard flame-retardant type-4 printed circuit boards (PCBs) with a 4.5 × 1.5 mm2 size. The measurement shows that the pre-equalizer centre frequency is similar at 654 MHz for all test sets but with varying dynamic magnitude gains in the range of -9.49 to -33.4 dB. The designed BTEC demonstrates that the bandwidth of LED can be extended to provide a solid foundation for future investigations into this area.

Item Type:	Proceeding Paper (Slide Presentation)
Uncontrolled Keywords:	Bridged-T circuit, pre-equalizer, LED, VLC, scattering parameter, and ADS
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices > TK7885 Computer engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Science Kulliyyah of Engineering
Depositing User:	Dr Norhanis Aida Mohd Nor
Date Deposited:	28 Aug 2024 14:42
Last Modified:	28 Aug 2024 14:42
URI:	http://irep.iium.edu.my/id/eprint/114100

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