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

被引：3

作者：

Rajbhandari, S. ^{[1
]}

Ghassemlooy, Z. ^{[1
]}

Angelova, M. ^{[2
]}

机构：

[1] Northumbria Univ, Sch CEIS, Opt Commun Res Grp, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England

[2] Northumbria Univ, Sch CEIS, Intelligent Modeling Lab, Newcastle Upon Tyne NE2 1XE, Tyne & Wear, England

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2011年 / 23卷 / 20期

关键词：

Artificial light interference; optical wireless communication; wavelet transform; SYSTEMS;

D O I：

10.1109/LPT.2011.2162723

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter reports the experimental evaluation of the on-off keying (OOK) modulation technique for a nondirected 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.

引用

页码：1502 / 1504

页数：3

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