Optimizing the rate in a Li-Fi system
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsEmilie Bialic, Dinh-Chuong Nguyen, David Vaufrey
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Abstract
The invention relates to a method for optimizing the data rate, in a wireless communication system comprising a LED forming an emitting device, and a photodetector forming a receiving device. For a given value of a DC component of the supply signal of the LED, the modulation amplitude of an AC component of this supply signal is adjusted step by step, so as to improve the transmission quality of the signal provided by the LED and received by the photodetector. The invention also relates to an optimization module implementing such a method. Alternatively, the modulation amplitude of the AC component of the supply signal is set, and the value of the DC component is adjusted step by step.
Claims16
A method for optimizing the data rate, in a wireless communication system comprising a light-emitting diode forming emitting means, said light-emitting diode being supplied with a supply signal comprising a DC component and an AC component, wherein said method comprises the following steps:
- setting a value of the DC component of the supply signal;
- adjusting a modulation amplitude of the AC component of the supply signal, from a measurement of a parameter, said parameter being representative of the transmission quality of a signal, said signal corresponding to a light signal emitted by the light-emitting diode and received by a photodetector forming receiving means of the wireless communication system.
A method for optimizing the data rate, in a wireless communication system comprising a light-emitting diode forming emitting means, said light-emitting diode being supplied with a supply signal comprising a DC component and an AC component, wherein said method comprises the following steps:
- setting a modulation amplitude of the AC component of the supply signal;
- and
- adjusting the DC component of the supply signal, from a measurement of a parameter, said parameter being representative of the transmission quality of a signal, the signal corresponding to a light signal emitted by the light-emitting diode and received by a photodetector forming receiving means of the wireless communication system.
Dependencies are inferred from the claim text.