TY - GEN
T1 - Design and implementation of anti low-frequency noise in visible light communications
AU - Chang, Fu Liang
AU - Hu, Wei Wen
AU - Lee, Da Huei
AU - Yu, Chao Tang
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/21
Y1 - 2017/7/21
N2 - With the increasing popularity of light emitting diodes (LEDs), visible light communication (VLC) systems provide an attractive alternative method for wireless communication. To reduce complexity and achieve lower cost, the on-off keying (OOK) modulation has been widely adopted in implementation of VLC systems. Although the conventional minimum-voltage detection circuit can remove the interference from sunlight or ambient light, the low frequency noise problem is still unsolved. To overcome this drawback, we propose a novel OOK-based VLC receiver architecture consisting of a transimpedance amplifier, a fourth order high pass filter with Sallen-Key method, and a Schmitt trigger. Experiment results show that the proposed receiver not only can remove the interference from ambient lights, but also can reduce the interference effects from the low-frequency noise of ambient light or indoor fluorescent light.
AB - With the increasing popularity of light emitting diodes (LEDs), visible light communication (VLC) systems provide an attractive alternative method for wireless communication. To reduce complexity and achieve lower cost, the on-off keying (OOK) modulation has been widely adopted in implementation of VLC systems. Although the conventional minimum-voltage detection circuit can remove the interference from sunlight or ambient light, the low frequency noise problem is still unsolved. To overcome this drawback, we propose a novel OOK-based VLC receiver architecture consisting of a transimpedance amplifier, a fourth order high pass filter with Sallen-Key method, and a Schmitt trigger. Experiment results show that the proposed receiver not only can remove the interference from ambient lights, but also can reduce the interference effects from the low-frequency noise of ambient light or indoor fluorescent light.
UR - http://www.scopus.com/inward/record.url?scp=85028537550&partnerID=8YFLogxK
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U2 - 10.1109/ICASI.2017.7988219
DO - 10.1109/ICASI.2017.7988219
M3 - Conference contribution
AN - SCOPUS:85028537550
T3 - Proceedings of the 2017 IEEE International Conference on Applied System Innovation: Applied System Innovation for Modern Technology, ICASI 2017
SP - 1536
EP - 1538
BT - Proceedings of the 2017 IEEE International Conference on Applied System Innovation
A2 - Meen, Teen-Hang
A2 - Lam, Artde Donald Kin-Tak
A2 - Prior, Stephen D.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE International Conference on Applied System Innovation, ICASI 2017
Y2 - 13 May 2017 through 17 May 2017
ER -