LiFi vs. WiFi-Basic Difference between LiFi and WiFi In the last article, we told what Li-Fi is and what LiFi system basics are. LiFi uses light as medium for data communication where as WiFi uses Electromagnetic waves for data communication. First, know this: The sources of the light waves used by Li-Fi are LED lamps. LiFi is used to exchange data incredibly rapidly and securely at much lower power level compare to WiFi. In fact, Wi-Fi is short for wireless fidelity. LiFi covers distance of about 10 meters while WiFi covers about 30 meters. Recent tests have shown that Lifi is capable of providing the speed of 1GB, which is incredible. LiFi uses LED bulbs which are also used in our normal homes. Wifi does not work well in dense regions; it cannot pass through water and inference is more. 2: Typical Wi-Fi configuration . The full form of LiFi is Light Fidelity. Visible light is much less inclined to interference than radio waves, and Li-Fi signals can’t penetrate walls. But it lies within the frequencies of 2.4GHz and 5GHz. Lifi is going to be an alternative to Wifi, because it use visible light for data transfer. Installing a multi-channel receiver, with capabilities much like a Smart WiFi Toggler, would allow a switch to be made between each type of ‘fidelity’ when conditions require it. What is Difference between wifi and LiFi, MiFi. According to the amount of data on the network that is to be transferred, Wifi uses certain frequencies in between 2.4 GHz and 5GHz to create the connection. In this article we list some main differences between LiFi and WiFi. Because of this, Li-Fi has the capacity to absorb any amount of users transmitting any amount of data, while even now, there is some danger of Wi-Fi running out of room in congested areas. LiFi was first described by Prof. Harald Haas in 2011. Translate this page. Range and transmission capacity A single modulated LED can transmit over a range of about 10 meters, but there is no reason that a much wider range isn’t possible with multiple LEDs spaced over a wider area. Which one is better? There are also the well-known Bluetooth and Zigbee, but there’s another rapidly advancing technology called Li-Fi, which is based on transmitting ones and zeros over light waves. This is surely going to change our lives and businesses. Wifi signals cannot be blocked bay walls, so signal needs to use more secure techniques to protect data. In Lifi, data is transmitted with the use of light produced by LED bulbs. For example, solid walls stop light waves, so this can be interpreted as built-in security for Li-Fi, as restricted information will not be available to outsiders. It operates between 380 nm to 780 nm optical range. Why Li-Fi is the best solution, and why an LED bulb is more efficient than our beloved radio transmitters. Both LiFi and WiFi technologies are mainly used for internet based applications. Now, even though it has been 7 years since public disclosure and R&Ds efforts in this tech have doubled since then, LiFi isn’t anywhere near in competition to WiFi. In this post we are going to talk about Li-Fi, and why we need to replace our wireless system- what are the problems we face in the current system, and why should we bother to change it. Due to the above features and the simple hardware modification that needs to takes place, it will be an ideal alternative to wifi. The frequency used for the data transfer will be the frequency which comes with the visible light. Lifi is not the replacement of wifi technology. It governs internationally under some particular rules. LiFi is upcoming technology which will change the way we access Internet. As we now know, LIFI is a Visible Light Communication system. Li-Fi vs Wi-fi is a major technology battle. Differences between Li Fi and Wi Fi 5. Li-Fi vs Wi-Fi Comparison What is Li-Fi and How Does it Work? Using LED light bulbs to access the Internet, LiFi has several advantages over WiFi including speed, energy efficiency, safety and security. It will also be able to provide a greater range when compared with wifi. It seems a cool technology in network communication? Wi-Fi is a well-established technology, governed internationally under IEEE 802.11 rules. Li-Fi looks to be yet another disruptive technology, this time in communication, which has remained with the same wireless technology since the year 2000. LiFi uses light as medium for data communication where as WiFi uses Electro-magnetic waves at various radio frequencies for data communication. The two systems are complimentary with their purpose. RF and Wireless Terminologies. It is a great improvement in the networking field that requires photo detectors for its light mode of transmission. Image source: rfwireless-world.com. But based on the several conditional advantages that Li-Fi does enjoy, and the limitations of Wi-Fi spectrum availability, it’s safe to expect considerable interest in Li-Fi over the coming years. From the above comparison, it is evident that Lifi is a new technology which has the ability to surpass wifi easily due to its faster data rate and safety. To understand Li-Fi, it’s important to understand how Wi-Fi gets internet and data to your devices. LiFi is a high-speed wireless communication technology that uses visible light (presently using LEDs) to transmit information. Compared to today’s popular Wi-Fi, can you tell some difference between them? 1 , the digitized content that is to be streamed feeds a lamp driver circuit, which imposes the content on each LED lamp. Wifi uses a router and a subscriber device. emerging piece of technology that makes use of Visible Light Communication (VLC) technology instead of radio waves to transmit data In Wifi, data can be transferred at 150Mbps with the use of WLAN -11n.                                              Â. WiFi networks allow users to wirelessly connect to a wired network, such as a LAN, by the use of routers and access points. The most common form of wireless technology in use today for telecommunications is Wi-Fi, which is based on radio signals operating in the range of 2.4 GHz or 5 GHZ. LIFI & WIFI are quite similar as both transmits data electromagnetically. LiFi uses light for data transmission while WiFi uses electro-magnetic waves at radio frequencies for data transmission. Signal penetration Light waves and radio waves, which are the basis of Wi-Fi and Li-Fi, differ vastly on what they can pass through and what stops them. Introduction: Both LiFi and WiFi technologies are mainly used for internet based applications. The said technology has been established well. This is a huge progress as Lifi is recorded to be 250 Times faster than Wifi. It’s important to point out that the Li-Fi methodology depicted in Fig. LiFi is a wireless optical networking technology. They eliminate the need for a physical connection by transmitting data to anybody within a certain area. However, Wi-Fi uses radio waves while LIFI runs on visible lights. Another main advantage of Lifi is that it is ultra-fast compared with wifi. LiFi is a wireless technology that uses light rays instead of radio waves. As of this writing, Wi-Fi is the undisputed champion of wireless data transmission. Li Fi vs Wi Fi. What do you think? These days Wifi is available in many places like home, libraries, hotels, and airports. The router will operate as the decoder during the transmission. LiFi has a special distinction from other VLC systems. Wifi is accompanied by interference issues near access points. In Lifi, the range that data could be transferred is 10 m. In Wifi, the data transfer is about 32 meters, but this will vary according to the antenna and transmitter power. (CC BY-SA 4.0) via Wikimedia Commons, “WI-FI Range Diagram” by Robo56 at en.wikipedia. Here are some difference between Lifi And Wifi. 3. Basic Difference between LiFi and WiFi: It covers basics of LiFi vs WiFi including their features, working operation, merits, demerits, applications etc. In Lifi, data can be transferred at 1Gbps. This stable technology is well-established, with a mature and slowly evolving set of standards that are easy for manufacturers to adhere to. Data Transmission: It transmits data using radio waves with the help of a Wi-Fi router. One of the main advantages of Wi-Fi is its ability  to operate regardless of the operating system device; this is very useful in connectivity. Due to less interference incurred by light compare to radio frequency waves, it is used in more dense environments. As for Wi-Fi, it starts with a signal received from the internet, usually by way of a cable modem. Each of these communications technologies offers its own advantages depending on the circumstances. The frequency spectrum that could be used in Wifi is 2.4GHz, 4.9 GHz, and 5GHz. WiFi and LiFi are similar because both technologies are wireless, but also very different, because unlike WiFi, which relies on radio waves, LiFi uses visible light communication (VLC) or infrared and near-UV spectrum waves. SATELLITE RF Antenna Avionics Wireless LiFi vs WiFi MiFi vs WiFi BPSK vs QPSK BJT vs FET PDH vs SDH CS vs PS MS vs PS Share this page. It transmits data using light with the help of LED bulbs. In Wifi, data is transmitted with the use of radio waves and a wifi router. The main difference between wifi and Lifi is that Lifi uses light in order to communicate data whereas wifi uses radio signals. Yet light waves will transmit through water, which will be useful for a wide range of industrial, military, and IoT purposes. The term was first introduced by Harald Haas during a 2011 TEDGlobal talk in Edinburgh. Spectrum The spectrum available for Wi-Fi is limited to an area near 5 GHz, while Li-Fi information is transmitted on beams of light, whose range is an enormous chunk of the electromagnetic spectrum, clustered around 500,000 GHz. (CC BY-SA 3.0) via Wikimedia Commons, Difference Between Omni and Directional Antenna, What is the Difference Between Martini and Dirty Martini, What is the Difference Between Season and Weather, What is the Difference Between Margarita and Daiquiri, What is the Difference Between Cocktail and Mocktail, What is the Difference Between Rutabaga and Turnip, What is the Difference Between Appetizer and Entree. 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