Experimental Investigation of Wavelet-Based Denoising Receiver for LOS Indoor Optical Wireless Communications Links

Rajbhandari, Sujan, Ghassemlooy, Zabih and Angelova, Maia (2011) Experimental Investigation of Wavelet-Based Denoising Receiver for LOS Indoor Optical Wireless Communications Links. IEEE Photonics Technology Letters, 23 (20). pp. 1502-1504. ISSN 1041-1135

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Official URL: http://dx.doi.org/10.1109/LPT.2011.2162723

Abstract

This paper reports the experimental evaluation of the On-Off Keying (OOK) modulation technique for a non-directed line-of-sight (LOS) infrared optical wireless communication (OWC) link. Performance evaluation is carried out in a typical room environment in the presence of fluorescent light driven by an electronic ballast. The adverse effect of the fluorescent light inference (FLI) is demonstrated and a number of mitigating techniques including high pass filtering (HPF) and discrete wavelet transform (DWT) based denoising are investigated. The study shows that DWT outperforms HPF for all data rates. The practical measurements are also verified using a computer simulation.

Item Type: Article
Uncontrolled Keywords: computer simulation, discrete wavelet transform-based denoising, electronic ballast, fluorescent light interference , high pass filtering , indoor optical, nondirected line-of-sight infrared, on-off keying modulation, performance evaluation
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics and Information Sciences
Depositing User: EPrints Services
Date Deposited: 07 Oct 2011 09:20
Last Modified: 10 Aug 2015 11:17
URI: http://nrl.northumbria.ac.uk/id/eprint/1119

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