Multiuser Indoor Visible Light Communication Systems
Résumé
Optical wireless communications (OWC) has recently emerged as a solution to augment radio-frequency-based transmission systems, especially for indoor environments where up to 70% of wireless traffic takes place. An interesting approach is to exploit the visible part of the spectrum; what is referred to as visible light communications (VLC). Advantages such as unregulated spectrum, low cost, and implementation simplicity, are encouraging the use of the VLC technology in a variety of applications. However, such links potentially suffer from problems including the degradation in signal-to-noise ratio due to the presence of ambient noise sources, and multiple reflections that can (in special circumstances) impact the achievable data rate. In our work, we aim at developing efficient multiple access techniques for indoor VLC systems. In addition, we work on developing appropriate cellular architectures for VLC systems Cellular Architectures in VLC Networks
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