A 3-Gb/s single-LED OFDM-based wireless VLC link using a gallium nitride µLED

Tsonev, D. et al. (2014) A 3-Gb/s single-LED OFDM-based wireless VLC link using a gallium nitride µLED. IEEE Photonics Technology Letters, 26(7), pp. 637-640. (doi: 10.1109/LPT.2013.2297621)

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This letter presents a visible light communication (VLC) system based on a single 50- μm gallium nitride light emitting diode (LED). A device of this size exhibits a 3-dB modulation bandwidth of at least 60 MHz - significantly higher than commercially available white lighting LEDs. Orthogonal frequency division multiplexing is employed as a modulation scheme. This enables the limited modulation bandwidth of the device to be fully used. Pre- and postequalization techniques, as well as adaptive data loading, are successfully applied to achieve a demonstration of wireless communication at speeds exceeding 3 Gb/s. To date, this is the fastest wireless VLC system using a single LED.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Watson, Dr Scott and Dawson, Prof Martin and Haji, Dr Mohsin and Kelly, Professor Anthony
Authors: Tsonev, D., Chun, H., Rajbhandari, S., McKendry, J. J. D., Videv, S., Gu, E., Haji, M., Watson, S., Kelly, A. E., Faulkner, G., Dawson, M. D., Haas, H., and O'Brien, D.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:IEEE Photonics Technology Letters
ISSN (Online):1941-0174

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