What is visible light communication PPT?

What is visible light communication PPT?

The visible light communication (VLC) refers tothe communication technology which utilizes thevisible light source as a signal transmitter, the air asa transmission medium, and the appropriatephotodiode as a signal receiving component.

What is meant by visible light communication?

Visible light communication (VLC) is a wireless method that uses light emitted by LEDs to deliver networked, mobile, high-speed communication similar to Wi-Fi, leading to the term Li-Fi. It can be used as standalone solution or in a supplementary role to radio-frequency (RF) or cellular network communication.

How are visible light used for communication?

The Li-Fi uses visible light for communication to provide high speed internet up to 10Gbits/s. Visible light is used to provide both lighting and information using VLC techniques. For example, we use lighting in the room to provide the room number identification and other information about the building.

What is the significance of visible communication?

Visible light communication (VLC) is a wireless method that enables high-speed transmission of data with visible light. This data is transmitted by modulating the intensity of light given off by a light source.

What are the advantages of visible light?

Visible-light cameras provide perfectly clear images during the day. The images displayed are pretty much what a person looking at the scene would see. Objects can be identified quickly and easily. – Images cannot be captured at night.

What are the benefits of visible light?

Aside from sight, there are other important uses for visible light. We concentrate visible light to make lasers to use in everything from surgery, to CD players to laser pointers. Visible light waves also make our TV, computer and cell phone screens work.

What is the range of visible light in humans?

380 to 700 nanometers
The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. More simply, this range of wavelengths is called visible light. Typically, the human eye can detect wavelengths from 380 to 700 nanometers.

Which is a component of visible light communication?

Visible Light Communication • The visible light communication (VLC) refers to the communication technology which utilizes the visible light source as a signal transmitter, the air as a transmission medium, and the appropriate photodiode as a signal receiving component.

What are the different types of visible light modulation?

MODULATION:-•Pulse Position Modulation (PPM)•Frequency Shift Keying (FSK) 12. The Visible Light CommunicationsConsortium (VLCC) which is mainlycomprised of Japanese technology companieswas founded in November 2003. It promotesusage of visible light for data transmissionthrough public relations and tries to establishconsistent standards.

Why is visible light not a health problem?

4. 4 Motivation visible light does not cause any health problems no EM-interference occurs save to use in hospitals no expensive patent-license necessary no interception because the transmission range is narrowly confined ever-increasing market share of LEDs makes VLC ubiquitously available

How big is the spectrum of visible light?

3. 3 Visible Light (source: http://www.etud.insa-toulouse.fr/~tkabir/code/cietorgb.html, public domain)  visible light is all around us  part of the visually-perceivable electromagnetic spectrum  spectrum of visible light ranges from 380nm to 750nm

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