NDLI: A 100 Mb/s visible light communications system using a linear adaptive equalizer

Content Provider	IEEE Xplore Digital Library
Author	Haigh, P.A. Ghassemlooy, Z. Rajbhandari, S. Leitgeb, E.
Copyright Year	2014
Description	Author affiliation: Dept. of Eng. Sci., Univ. of Oxford, Oxford, UK (Rajbhandari, S.) \|\| Inst. of Broadband Commun., Tech. Univ. of Graz, Graz, Austria (Leitgeb, E.) \|\| Fac. of Eng. & Env., Northumbria Univ., Newcastle upon Tyne, UK (Haigh, P.A.; Ghassemlooy, Z.)
Abstract	This paper presents experimental results demonstrating a > 100 Mb/s visible light communications (VLC) system using linear adaptive equalizers for the first time. In order to achieve high transmission speeds, generally the research community has adopted spectrally efficient modulation formats such as discrete multi-tone and equalizers are overlooked. The reason for this is unclear as equalizers offer a substantial capacity for removing inter-symbol interference. As a result, in this paper we implement a line-of-sight VLC link with an ~8 MHz bandwidth and a linear feedforward equalizer; the number of taps is varied in order to gain insight into the system performance using varying complexity. The 120 Mb/s transmission speed ultimately achieved offers a bit-rate to bandwidth gain of ~15 times.
Starting Page	136
Ending Page	139
File Size	1193084
Page Count	4
File Format	PDF
ISBN	9781479938728
DOI	10.1109/NOC.2014.6996842
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-04
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical filters Training Equalizers Finite impulse response filters Bit error rate Visible light communications Bandwidth Light emitting diodes
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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