Knowledge in wifi
LIFI Technology
What is LiFi Technology? LiFi is a mobile wireless technology that uses light rather than radio frequencies to transmit data. The technology is supported by a global ecosystem of companies driving the adoption of LiFi, the next generation of wireless that is ready for seamless integration into the 5G core. LiFi Can Overcome the Challenges of RFSpeed & BandwidthLiFi can deliver multiple Gbps speeds in mobile devices. This next generation technology will drive wireless beyond any current capability, opening up unprecedented bandwidth. ReliabilityLiFi provides enhanced reliability enabling interference-free communications and 1000 times the data density, dramatically improving the user experience.Low Latency LiFi currently offers latency by a factor of three times lower than Wi-Fi and can radically enable innovation, automation, and applications such as AR and VR.SecurityLight can be contained, and secured in a physical space. LiFi enables additional control as LiFi offers precise localisation for asset tracking and user authentication. LocalisationLiFi is fully networked, and each LiFi enabled light has it a unique IP address which means advanced geofencing can be deployed simply in a LiFi network.Interference FreeRF is vulnerable to interference from a wide range of devices such as cordless phones, microwaves and neighbouring Wi-Fi networks. LiFi signals can be defined by the area of illumination, which means interference is much simpler to avoid and even stop altogether. This also means LiFi can be used in RF hostile zones such as hospitals, power plants and aeroplanes. How Li-Fi Works?Li-Fi is a VLC (visible light communications) system and the speed of this system is very high. Li-Fi uses normal LEDs to allow the data to transfer and increase the speed up to 224 Gigabits/sec. The data transmission of this technology can be done via illumination. The essential devices of this system are the bright light emitting diodes.The ON/Off activity of LEDs permits a type of data transmission in the form of binary codes but the human eye cannot recognize this transform & the bulbs appear with a stable intensity.Differences between Li-Fi & Wi-Fi The Bandwidth Expansion of Wi-Fi technology is limited and exceptional for Li-FiThe Speed of the Wi-Fi is150 Mbps and >10 Gbps for Li-FiThe Data Density of Wi-Fi technology is low and high for Li-FiThe Range of Wi-Fi is medium and low for Li-FiThe Security of Wi-Fi is medium and excellent for Li-FiThe power availability of Wi-Fi is low and high for Li-FiThe ecological impact of Wi-Fi is medium and low for Li-FiThe cost of the Wi-Fi is medium and low for Li-FiThe network topologies of Li-Fi and Wi-Fi technologies is a point to point Advantages of Li-Fi Speed-The speed of the Li-Fi is very high, and we can watch the videos without buffering.Security- The light of the Li-Fi doesn’t run through the partition, therefore, it is more protected and hacking is not possible.Risk-free-Li-Fi utilizes light waves which are harmless.Consistent- The data transfer is more protected. Disadvantages of Li-Fi Apart from several benefits, the Li-Fi technology is facing several problems. It requires LOS (line of sight), as well as the receiver, would not be a move in inside.The main problem is how the receiver will send the data back to the transmitter section. Another disadvantage of this technology is an interference of exterior light sources such as normal bulbs; sunlight in the lane of communication will cause intermission in the transmission.It doesn’t work in the dim areas. Li-Fi Technology Applications Traffic Management & Road SafetyMedical ApplicationsAviationCommunication UnderwaterElegant LightingInterior map-reading system for blind peopleIn dangerous Environments or In Sensitive regionsTransportationsIndustrial AreasAt present, the concept of Li-Fi technology is attracting a lot of wireless internet users due to its genuine features. Further, it can be explored for laptops; gadgets which can be transmitted through the light in the room by using Li-Fi.
kaushal shah
WIFI-Booster - Better connectivity for your home
Tablet & iPad Users Experience Huge Boosts Of Wi-Fi Speed After Trying This New Tech TrickTablet and iPad users finally found a way to drastically improve their internet speed and enjoy it to the fullest for the cheapest price possible…Have you ever noticed how much slower your internet gets during the peak hours of the day?It is now clear that all that annoying endless buffering happens because of your internet service provider (ISP) which is doing that on purpose! ISPs are capping your internet speeds to give their best-paying customers better service by transferring some of your “bandwidth” to them…If your internet plan is one of those cheaper ones, there’s a great chance that you won’t be even able to watch Youtube, Netflix, or make a skype call during those hours of “throttling”.That doesn’t sound fair, does it?Luckily, there’s finally a solution! It takes only one simple yet genius device to put an end to this and many other annoying internet problems!An ex-engineer, who’s been working for years at one of the largest internet providers in Germany, came up with this idea to solve this issue. He always knew that people pay full price for the service that sometimes barely works, and that internet operators control this process…He never felt happy about being a part of this.His solution was to create a device that would be able to bypass ISP's speed throttling while increasing WiFi's range and speed around your house. He wanted it to be as simple as possible, so that anyone, even the least tech-savvy ones, would be able to use it.After days of trying, he finally reached his desired result… and called it “WifiBooster”.How does WifiBooster work?There’s a really simple way to explain this. The major problem in this situation are cheap Wi-Fi router boxes that are sold by our internet service providers.Thick walls of our houses prevent that already weak signal from spreading around in full speed. Not to mention that it’s nearly impossible to connect more than one device…This results in frustration brought by your weak Wi-Fi signal and many “dead spots” that appear around your house…WifiBooster helps to overcome this problem by simply plugging in into any socket!When you think about it, WifiBooster sounds like a miracle – two cutting-edge Wi-Fi routers and a powerful amplifier in one palm-sized device.WifiBooster spots your existing signal, improves its characteristics and then transmits already amplified Wi-Fi through all the obstacles it meets on its way – whether it’s concrete walls or multiple floors.But that’s not all! WifiBooster solves our main problem – Internet providers slowing down the speed – by preventing data usage reports from reaching ISPs in the first place. There’s probably no need to say that it makes the speed throttling not even possible!To sum up: WifiBooster provides you with a much faster and stronger internet connection at any time and any corner at your house without additional costs.WifiBooster brings noticeable results immediately after you plug it in. It is now available for only $49 (instead of $99.99) which is totally worth all the benefits that come with it. Order now in India and enjoy your improved internet connection in a few days already!The resultsWifiBooster got acknowledged by expert magazines as a device with “the best reception we have ever tried,” that not only boosts slow internet connections but also improves already fast Wi-Fi by making it even better!Below you see a test made with Wi-Fi that was only at almost 24Mbit through a wall. This is usually enough for a couple of devices to enjoy HD videos in Youtube at once. WifiBooster improved the speed into amazing 84,6Mbit that would make it possible for at least 10 devices to enjoy same videos in incredible 4k at the same time!What are the main features of WifiBooster?Works with any internet router or brandUses the frequency of 2.4GhzTransfer rate of up to 300Mbps, equipped for all applications LAN RJ45 connectionEasy to set upEnergy-efficient and low-radiation interferenceNo additional material needed to installUniversal applicabilityWhat problems does WifiBooster solve?Slow internet connectionWeak Wi-Fi signal after leaving the roomBad quality of video callsWi-Fi “dead spots” around your houseEndless bufferingThick walls that weakens the signalInsufficient download and upload times
Types of networks
A metropolitan area network consists of a computer network across an entire city, college campus or small region. A wide area network occupies a very large area, such as an entire country or the entire world. Special purpose networks include storage area networks, home area networks and body area networks.
Tharshini Ravikumar
Wireless network
Wi-Fi is the name of a wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections. A common misconception is that the term Wi-Fi is short for "wireless fidelity," however this is not the case. Wi-Fi is simply a trademarked phrase that means IEEE 802.11x.