The PHY 1 was established for outdoor application and works from 11.67 kbit/s to 267.6 kbit/s. The length of their cabling places a hard limit on their operational range, and other potential factors such as the cable's weight and fragility may be restrictive. 59. The  product consisting of  a  transmitter  which  includes  a  light  source  and  the  receiver  circuit  which  receives  the  data  transmitted  via light waves. While the US Federal Communications Commission has warned of a potential spectrum crisis because Wi-Fi is close to full capacity, Li-Fi has almost no limitations on capacity. Reply. The light waves cannot penetrate walls which translates to a much shorter range, and a lower hacking potential, relative to Wi-Fi. One output channel from the PAM8403 will then be connected to a few LEDs. Nonetheless, the IEEE 802.15.7 standard defines the physical layer (PHY) and media access control (MAC) layer. [4] The Li-Fi market was projected to have a compound annual growth rate of 82% from 2013 to 2018 and to be worth over $6 billion per year by 2018. The page describes working of LiFi transceiver used in Lifi dongle.The LiFi transceiver or LiFi dongle is used to browse LiFi internet.It mentions internal block diagram of LiFi Transceiver or LiFi dongle. The Manchester coding used for the PHY I and PHY II layers includes the clock inside the transmitted data by representing a logic 0 with an OOK symbol "01" and a logic 1 with an OOK symbol "10", all with a DC component. Next-generation plant communication system “ Optical wireless instruments (OWIs) should be located either inside or outside of the module in the process area of plants. Ugh. Toric and Luciom, a French VLC company acquired by Philips Lighting in late 2016, refer to these three respective applications as Li-Fi Internet, Li-Fi Tag, and Li-Fi Broadcast categories. As shown Person#1 is browsing internet in Laptop, Person#2 in tablet and Person#3 in smartphone. 1. Li-Fi stands for Light Fidelity .Li-Fi technology provides transmission of data through illumination by sending  data  through  LED  that  varies  in  intensity  faster  than  the  human  eye  can  follow.This  product  focus  on developing  a  Li-Fi  based  system  and  analyze  its  performance  with  respect  to  existing  technology. LiFi enables additional control as LiFi offers precise localisation for asset tracking and user authentication. [citation needed], The first VLC smartphone prototype was presented at the Consumer Electronics Show in Las Vegas from January 7–10 in 2014. LiFi, also known as light fidelity, is a full duplex communication network enabling transmittal of data. In most cases, a dimmer is used to turn power ON/OFF for lamps or heating elements, it can also be used in fans, pumps, air cleaners, etc. [8][9] Direct line of sight is not necessary for Li-Fi to transmit a signal; light reflected off walls can achieve 70 Mbit/s. 5. The LEDs can pinpoint where they are located in the store and give them corresponding coupons and information based on which aisle they are on and what they are looking at. [38], in August 2018, Kyle Academy, a secondary school in Scotland, had pilot the use of Li-Fi within the school. : Introduction to Li-Fi Technology. A customer walking into a store and passing through the store's front lights can show current sales and promotions on the customer's cellular device. 60.Introduction to Li-Fi Technology. Light Fidelity (Li-Fi) is a bidirectional, high-speed and fully networked wireless communication technology similar to Wi-Fi. 2.1.1 LI-FI Transmitter: In the process, a voice is used as the input signal. 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