Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-24T20:41:42.971Z Has data issue: false hasContentIssue false

Visible light communication channel disturbances and examination of the modulation formats

Published online by Cambridge University Press:  07 August 2015

Gábor Fekete*
Affiliation:
Budapest University of Technology and Economics, Egry József u. 18, Budapest H-1111, Hungary, Phone: +36 1 463 2634
Gergely Mészáros
Affiliation:
Budapest University of Technology and Economics, Egry József u. 18, Budapest H-1111, Hungary, Phone: +36 1 463 2634
Eszter Udvary
Affiliation:
Budapest University of Technology and Economics, Egry József u. 18, Budapest H-1111, Hungary, Phone: +36 1 463 2634
Gábor Fehér
Affiliation:
Budapest University of Technology and Economics, Egry József u. 18, Budapest H-1111, Hungary, Phone: +36 1 463 2634
Tibor Berceli
Affiliation:
Budapest University of Technology and Economics, Egry József u. 18, Budapest H-1111, Hungary, Phone: +36 1 463 2634
*
Corresponding author: G. Fekete Email: [email protected]

Abstract

The paper experimentally investigates indoor visible light communication (VLC) channels. The disturbances come from the light bulbs and other VLC systems. The paper demonstrates that the noisiest light bulbs are the fluorescent lamps which emit high frequency disturbances. Different light bulbs are examined to make an optimal carrier choice for the transmitted signal. In the next part of the paper several modulation schemes and two kinds of detector systems are compared. The paper represents also the advantages and disadvantages of receiver constructions with and without a lens. The optimum modulation for different application is investigated.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Moreira, A.J.C.; Valadas, R.T.; de Oliveira Duarte, A.M.: Characterisation and modelling of artificial light interference in optical wireless communication systems, in Personal, Indoor and Mobile Radio Communications, September 1995, 326–331.Google Scholar
[2] Moreira, A.J.C.; Valadas, R.T.; de Oliveira Duarte, A.M.: Optical interference produced by artificial light. Wireless Netw., 3 (2) (1997), 131140.CrossRefGoogle Scholar
[3] Hauske, M.; Jondral, F.K.: Characterization of wireless optical indoor channels, in Photonics Global Conf., 2010, pp. 1–5.CrossRefGoogle Scholar
[4] Kumar, N.; Lourenco, N.R.: Led-based visible light communication system: a brief survey and investigation. J. Eng. Appl. Sci., 5 (4) (2010), 296307.Google Scholar
[5] Hayesa, A.R.; Ghassemlooya, Z.; Seedb, N.L.: Optical wireless communication using digital pulse interval modulation, in Proc. of Optical Wireless Communications, SPIE, 1999, pp. 61–69.CrossRefGoogle Scholar
[6] Chow, C.W.; Yeh, C.H.; Liu, Y.F.; Huang, P.Y.: Mitigation of optical background noise in light-emitting diode (LED) optical wireless communication systems. Photonics J., 5 (1) (2013), 7900307. doi: 10.1109/JPHOT.2013.2238618.Google Scholar
[7] Funahashi, A.; Kobayashiy, K.; Okaday, H.; Katayama, M.: i-LightHouse: a Visible Light Communication System for the Visually Impaired, PIMRC, 2011, pp. 10261030.Google Scholar
[8] Verma, S.; Shandilya, A.; Singh, A.: A Model for Reducing the Effect of Ambient Light Source in VLC System, IACC, 2014, pp. 186188.Google Scholar
[9] Zhao, Y.; Vongkulbhisal, J.: Design of visible light communication receiver for on-off keying modulation by adaptive minimum-voltage cancelation. Eng. J., 17 (4) (2013), 125129.CrossRefGoogle Scholar
[10] Kim, B.W.; Jung, S.-Y.: Bandwidth-efficient precoding scheme with flicker mitigation for OFDM-based visible light communications. ETRI J., (2015). doi: 10.4218/etrij.15.0114.0105.Google Scholar
[11] Elgala, H.; Mesleh, R.; Haas, H.; Pricope, B.: OFDM visible light wireless communication based on white LEDs. Veh. Technol. Conf., Dublin, 2007, pp. 21852189.Google Scholar
[12] Le Minh, H.; Ghassemlooy, Z.; O'Brien, D.; Faulkner, G.: Indoor Gigabit Optical Wireless Communications: Challenges and Possibilities, ICTON, Munich, 2010.Google Scholar
[13] Elgala, H.; Mesleht, R.; Haast, H.: A study of LED nonlinearity effects on optical wireless transmission using OFDM, in Int. Conf. on Wireless and Optical Communications Networks, 2009, pp. 1–5.CrossRefGoogle Scholar
[14] Tanaka, H.; Umeda, Y.; Takyu, O.: High-speed LED driver for visible light communications with drawing-out of remaining carrier, in Radio and Wireless Symposium, Phoenix, AZ, January 2011, pp. 295–298.CrossRefGoogle Scholar
[15] O'Brien, D.C.: Visible light communication: challenges and potential, in Photonics Conference, October 2011, pp. 365–366.Google Scholar
[16] Le Minh, H.; O'Brien, D.; Faulkner, G.; Zeng, L.; Lee, K.; Jung, D.; Oh, Y.; Won, E.T.: 100-Mb/s NRZ visible light communications using a postequalized white LED. Photonics Technol. Lett., 21 (15) (2009), 10631065.CrossRefGoogle Scholar
[17] Proakis, J.G.; Salehi, M.: Digital Communication, 4th ed., McGraw-Hill, 2000.Google Scholar
[18] Shinwasusin, E.-A.; Charoenlarpnopparut, C.; Suksompong, P.: Modulation Performance for Visible Light Communications, IC-ICTES, Hua-Hin, 2015.CrossRefGoogle Scholar