Indian Journal of Science and Technology
Year: 2015, Volume: 8, Issue: 22, Pages: 1-9
Imran Raza1* , S.Jabeen1 , S. R. Chaudhry2 , Syed Asad Hussain1 , A. Saeed1 , M. S. Bhatti 1 and M. H. Raza3
1 Communication and Networks Research Centre, Department of Computer Science, COMSATS Institute of Information Technology, Lahore, Pakistan;
[email protected]; [email protected]; [email protected]; [email protected]; [email protected]
2 Department of Communications and Networks, College of Computer Sciences, KFU, Saudi Arabia; [email protected]
3 Department of Engineering Mathematics and Internetworking, Dalhousie University, Halifax, Canada; [email protected]
Background/Objectives: This paper investigates the Line of Sight(LOS) Optical Wireless Channel(OWC) characterization for Visible Light Communications (VLC) designing a realistic indoor environment adding path loss along with Additive White Gaussian Noise (AWGN) to the channel. Findings:The results are very promising, as the transmission distance has been significantly increased maintaining the optimal quality of transmission. The quality of transmission is evaluated by measuring the quality of images received under various channel impairments. The effect of various channel impairments on data transmission has been discussed and elaborated generating various simulation scenarios. Applications/ Improvements:The propose indoor OWC for VLC enhances the transmission range from 4 meters to 6 meters having optimal quality of transmission in a channel representing real indoor environment.
Keywords: AWGN, Intensity Modulation, Indoor VLC, OWC
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