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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Moreira, A.J.C. Valadas, R.T. de Oliveira Duarte, A.M. |
| Copyright Year | 1995 |
| Description | Author affiliation: Dept. de Electron. e Telecoms, Aveiro Univ., Portugal (Moreira, A.J.C.; Valadas, R.T.; de Oliveira Duarte, A.M.) |
| Abstract | Wireless indoor infrared transmission systems are affected by noise and interference induced by natural and artificial ambient light. While the shot noise induced on the receiver photodiode by steady ambient light has been extensively described and included in system models, the interference produced by artificial light has only been mentioned as a source of degradation and quite simple descriptions have been presented. This paper presents a characterisation (through extensive measurements) of the interference produced by artificial light and proposes a simple model to describe it. These measurements show that artificial light can introduce significant in-band components for systems operating at bit rates up to several Mbit/s. Therefore it is essential to include it as part of the optical wireless indoor channel. The measurements show that fluorescent lamps driven by solid state ballasts produce the wider band interfering signals, and are then expected to be the more important source of degradation in optical wireless systems. |
| Starting Page | 326 |
| Ending Page | 331 |
| File Size | 690518 |
| Page Count | 6 |
| File Format | |
| ISBN | 0780330021 |
| DOI | 10.1109/PIMRC.1995.476907 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1995-09-27 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Interference Wireless communication Optical receivers Optical noise Optical filters Optical signal processing Power system modeling Photodiodes Fluorescent lamps Electronic ballasts |
| Content Type | Text |
| Resource Type | Article |
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