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Amir Masood Khalid, Giulio Cossu, Raffaele Corsini, Pallab Choudhury and Ernesto Ciaramella, "1-Gb/s Transmission Over a Phosphorescent White LED by Using Rate-Adaptive Discrete Multitone Modulation," IEEE Photonics Journal, vol. 4 (5), pp. 1465–1473, October 2012.


Light-emitting diodes (LEDs), which will be increasingly used in lighting technology, will also allow for distribution of broadband optical wireless signals. Visible-light communication (VLC) using white LEDs offers several advantages over the RF-based wireless systems, i.e., license-free spectrum, low power consumption, and higher privacy. Mostly, optical wireless can provide much higher data rates. In this paper, we demonstrate a VLC system based on a white LED for indoor broadband wireless access. After investigating the nonlinear effects of the LED and the power amplifier, a data rate of 1 Gb/s has been achieved at the standard illuminance level, by using an optimized discrete multitone modulation technique and adaptive bit- and power-loading algorithms. The bit-error ratio of the received data was 1.5$⋅$10^−3, which is within the limit of common forward error correction (FEC) coding. These results twice the highest capacity that had been previously obtained.

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Amir Masood Khalid
Giulio Cossu
Raffaele Corsini
Pallab Choudhury
Ernesto Ciaramella

BibTeX reference

    author = {Khalid, Amir Masood and Cossu, Giulio and Corsini, Raffaele and Choudhury, Pallab and Ciaramella, Ernesto},
    doi = {10.1109/JPHOT.2012.2210397},
    title = {{1-Gb/s Transmission Over a Phosphorescent White LED by Using Rate-Adaptive Discrete Multitone Modulation}},
    pages = {1465--1473},
    journal = {IEEE Photonics Journal},
    issn = {1943-0655},
    publisher = {IEEE},
    month = {10},
    number = {5},
    volume = {4},
    year = {2012},

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