1-Gb/s Transmission Over a Phosphorescent White LED by Using Rate-Adaptive Discrete Multitone Modulation

By Amir Masood Khalid, Giulio Cossu, Raffaele Corsini, Pallab K. Choudhury, Ernesto Ciaramella. IEEE Photonics Journal, 2012

485 citations recorded by the source corpus.

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 $1.5\cdot 10^{-3}$, which is within the limit of common forward error correction (FEC) coding. These results twice the highest capacity that had been previously obtained.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/37aee4acfdeaf342488a7ea1131ae95dbe80cf19

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Citations in the corpus

MicroLED technologies and applications: characteristics, fabrication, progress, and challenges (2020, unknown): “Parallel data transmission and equalization can allow data transmission rates higher than 1 Gbps [23].”
LED Based Wavelength Division Multiplexed 10 Gb/s Visible Light Communications (2016, methodology): “[8] showed the first demonstration achieving a data-rate of 1 Gb/s using a commercial phosphor based white LED.”
Visible Light Communication: Concepts, Applications and Challenges (2019, background): “In fact, many works in the area focus on unidirectional communications [151], [152].”
Visible Light Communication, Networking, and Sensing: A Survey, Potential and Challenges (2015, background): “Despite these challenges, OFDM for VLC holds great potential with achievable link rates in the scale of multiple gbps [73], [74] using only single LED.”
A 3-Gb/s Single-LED OFDM-Based Wireless VLC Link Using a Gallium Nitride $\mu{\rm LED}$ (2014, methodology): “The application of a blue filter at the receiver removes the slow component from the modulated signal and enables modulation frequencies of up to 20 MHz [2].”
Compensation of a VLC Phosphorescent White LED Nonlinearity by Means of Volterra DFE (2013, background): “Apart from limited modulation bandwidth causing intersymbol interference (ISI), white LEDs suffer from intrinsic nonlinearity, both static and dynamic [3]–[6].”
LED Based Indoor Visible Light Communications: State of the Art (2015, background): “Symmetrical clipping of both high and low peaks has been employed successfully in [89], [91].”