Li-Fi Technology
LI-FI (Light Fidelity)-The future technology in wireless communication
Pooja Abhnag1, Pratima Tarte2
Department of Electronics & Communication
Dr. D. Y. Patil Polytechnic
Address
1poojaabhnag13@gmail.com
2tartepratima@gmail.com
Abstract— Li-Fi is a new wireless communication technology which enables a wireless data transmission through LED light. Li-Fi is based on a unique ability of solid state lighting systems to create a binary code of 1s and 0s with a LED flickering that is invisible for human eyes. Data can be received by electronic devices with photodiode within area of light visibility. This means that everywhere where LEDs are used, lighting bulbs can bring not only the light but wireless connection at the same time. With increasing demand for wireless data, lack of radio spectrum and issues with hazardous electromagnetic pollution, Li-Fi appears as a new greener, healthier and cheaper alternative to Wi-Fi. Moreover Li-Fi makes possible to have a wireless Internet in specific environments (hospitals, airplanes etc.) where Wi-Fi is not allowed due to interferences or security considerations.
Keywords— WI-FI, VLC, photo detector, lamp driver, LED (Light Emitting Diode)
I. INTRODUCTION
Li-Fi or Light Fidelity is a technology that uses light emitting diodes to transmit data wirelessly. It was first demonstrated at a TED talk in 2011 by German physicist Harald Haas. This is a free band that does not need any license. Hence it is cheaper than Wi-FI. Wi-Fi, is a popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves the visible light spectrum is larger than the radio spectrum which provides better flexibility in its use. Communications over a very high speed with a theoretical limit of 10 GB per second.
The technology is capable of transferring thousands of streams of data simultaneously, in parallel, at higher speeds, with the help of special modulation, using a unique
Pooja Abhnag1, Pratima Tarte2
Department of Electronics & Communication
Dr. D. Y. Patil Polytechnic
Address
1poojaabhnag13@gmail.com
2tartepratima@gmail.com
Abstract— Li-Fi is a new wireless communication technology which enables a wireless data transmission through LED light. Li-Fi is based on a unique ability of solid state lighting systems to create a binary code of 1s and 0s with a LED flickering that is invisible for human eyes. Data can be received by electronic devices with photodiode within area of light visibility. This means that everywhere where LEDs are used, lighting bulbs can bring not only the light but wireless connection at the same time. With increasing demand for wireless data, lack of radio spectrum and issues with hazardous electromagnetic pollution, Li-Fi appears as a new greener, healthier and cheaper alternative to Wi-Fi. Moreover Li-Fi makes possible to have a wireless Internet in specific environments (hospitals, airplanes etc.) where Wi-Fi is not allowed due to interferences or security considerations.
Keywords— WI-FI, VLC, photo detector, lamp driver, LED (Light Emitting Diode)
I. INTRODUCTION
Li-Fi or Light Fidelity is a technology that uses light emitting diodes to transmit data wirelessly. It was first demonstrated at a TED talk in 2011 by German physicist Harald Haas. This is a free band that does not need any license. Hence it is cheaper than Wi-FI. Wi-Fi, is a popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves the visible light spectrum is larger than the radio spectrum which provides better flexibility in its use. Communications over a very high speed with a theoretical limit of 10 GB per second.
The technology is capable of transferring thousands of streams of data simultaneously, in parallel, at higher speeds, with the help of special modulation, using a unique