Square Wave Quadrature Amplitude Modulation for Visible Light Communication Using Image Sensor

Alfarozi, Syukron Abu Ishaq; Pasupa, Kitsuchart; Hashizume, Hiromichi; Woraratpanya, Kuntpong; Sugimoto, Masanori

Square Wave Quadrature Amplitude Modulation for Visible Light Communication Using Image Sensor

Alfarozi, Syukron Abu Ishaq; Pasupa, Kitsuchart; Hashizume, Hiromichi et al.

IEEE Access, 2019, 7, 94806-94821

Permalink : https://hdl.handle.net/2115/75343

このアイテムのアクセス数:598件（2026-08-13 17:30 集計）

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https://doi.org/10.1109/ACCESS.2019.2928417			24

論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/75343
タイトル	Square Wave Quadrature Amplitude Modulation for Visible Light Communication Using Image Sensor
著者	Alfarozi, Syukron Abu Ishaq ; Pasupa, Kitsuchart ; Hashizume, Hiromichi ; Woraratpanya, Kuntpong ; Sugimoto, Masanori
著者名 Alfarozi, Syukron Abu Ishaq
著者名 Pasupa, Kitsuchart
e-Rad_Researcher 40172853 著者名 Hashizume, Hiromichi
著者名 Woraratpanya, Kuntpong
e-Rad_Researcher 90280560 著者名 Sugimoto, Masanori
言語	英語
キーワード	Visible light communication (VLC)
	image sensor communication (ISC)
	exposure time
	square wave quadrature amplitude modulation (SW-QAM)
発行日	2019-07-11
出版者	IEEE (Institute of Electrical and Electronics Engineers)
収録物名	IEEE Access
巻(号)	7
ページ	94806-94821
抄録	Most visible light communication (VLC) technologies use a light emitting diode (LED) as a data transmitter and a photodiode as a receiver. In this paper, we alternatively focus on the use of an image sensor or camera as a receiver due to its wide availability. However, the successful use of an image sensor mainly depends on the efficiency of the encoder-decoder and the modulation scheme. Thus, this paper proposes a novel modulation scheme based on a square wave signal called a square wave quadrature amplitude modulation (SW-QAM) method. This method can accommodate different camera settings and overcome the problem of LED flicker that is generally sensed by human eyes when the LED frequency is low. At the transmitter side, multiple LEDs can be used to increase the transmission bit rate, while, at the receiver side, a Wiener filter is used as a complementary technique to SW-QAM for solving the light interference phenomenon due to the closeness of one LED to another. Our experimental results show that the proposed SW-QAM scheme can decode symbols very well either the for close or far communication distances, dark or bright lighting conditions, and single or multiple LED points.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 4.0 International
権利情報	© 2019 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.
PISSN	2169-3536
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1109/ACCESS.2019.2928417