Visible light technology

The opportunity to send data usefully in this manner has largely arisen because of the widespread use of LED light bulbs. LEDs are semiconductor devices similar to silicon chips. Consequently we can switch these bulbs at very high speeds that were not possible with older light bulb technologies such as fluorescent and . Traffic signage, traffic lights, and street lamps are adopting the LED technology so there are massive applications opportunities here. The fact that the visible light cannot be detected on the other .

MAC and PHY layer are defined for short range communication using visible light.

On the transmitter side, white light is .

In the electromagnetic spectrum , . Smart Semiconductor Materials and IoT Creates Opportunities. Advanced LED-based technology could revolutionise the way we send and receive data. The human desire for light was one of the reasons that caveman became engineer.

From the very first camp fires to the oil-filled lamp and electric torch, man-made light has led the . Visual Light Communication, Optical Wireless, VLC, OWC. Depending on the technological developments, the variety and quality of the communication devices and applications running on these devices have increased dramatically. Abstract: The Visible Light Communication (VLC) is an emerging technology , which provides distinct facilities such as fast data communication, secure data communication, high data rate wireless communication, etc. Instead of radio frequency, VLC uses light, to transfer data. The visible light spectrum is unlicensed and . Advances in Visible Light Communication Technologies.

Typical transmitters used for visible light . VLC is compared with infrared (IR) and RF systems and the necessity for using this beneficial technology in communication systems is justified. The advantages of LEDs compared to traditional lighting technologies are discussed and comparison is done between different types of LEDs currently available. Visible light communication technology is helping bring the internet of things to retailers, office buildings and the classroom. Thus, the emergence of new opportunities in the market such as mobile companies looking to integrate the technology into their smart devices and lighting companies looking to enter the market will propel the long-term growth of the global visible light communications market during the forecast period. Because the LED has high sensitivity, modulation, the advantages of good performance, large transmission power, can make it in light . Firefly Wireless Networks is the leader in Visible Light Communications (VLC) and LiFi technologies using visible and invisible light for data transmission.

LiFi is an alternative to WiFi and other radio frequency methods, and avoids RF interference and spectrum congestion issues.