Li-Fi is a technology that uses light from LED bulbs to transmit data wirelessly. Professor Harald Hass discovered Li-Fi in 2011 when he transmitted video through an LED lamp. Later, German scientists transmitted 800 Mbps using red, green, and yellow LEDs. Li-Fi works by converting an internet signal to light through an LED bulb, which a photoreceptor converts back to a digital signal. Compared to Wi-Fi, Li-Fi has a faster maximum speed of 123 Gbps, transmits within a confined space using less power, and will not have issues in places that restrict radio frequencies. Potential applications of Li-Fi include traffic signaling systems, restricted areas like gas stations, and underwater communication.
Li-fi (light fidelity) li-fi is a light based communication, data transfer through light, their are some advantages and disadvantages also, highly secure
Li-Fi will be a great advanced technology in Upcoming High Speed Wireless World.This slide is a basic informational Slide about Li-Fi. I hope after reading this slide, You will get the basic knowledge about Li-Fi. This slide was made for my University Presentation. Information was taking from Google.
How the li-fi technology came into existence.How it works and what are the advantages and disadvantages of li-fi technology.
For new topics visit my blog http://tulasikrishnaravi.blogspot.in/
It's a new technology it may be available in future. It is introduced by Mr. Harald Haas a German scientist professor at Edingburg University. In this technology we use light as wireless communication device for more information see it in TED Global talk by mr. Harald haas.
Li-fi (light fidelity) li-fi is a light based communication, data transfer through light, their are some advantages and disadvantages also, highly secure
Li-Fi will be a great advanced technology in Upcoming High Speed Wireless World.This slide is a basic informational Slide about Li-Fi. I hope after reading this slide, You will get the basic knowledge about Li-Fi. This slide was made for my University Presentation. Information was taking from Google.
How the li-fi technology came into existence.How it works and what are the advantages and disadvantages of li-fi technology.
For new topics visit my blog http://tulasikrishnaravi.blogspot.in/
It's a new technology it may be available in future. It is introduced by Mr. Harald Haas a German scientist professor at Edingburg University. In this technology we use light as wireless communication device for more information see it in TED Global talk by mr. Harald haas.
We are all using internet services but we cannot implement anything. Please implement useful network applications and this type of networks. It is not order it is request.
Light Fidelity(Li-Fi) is a bidirectional, high speed and fully networked wireless communication technology similar to Wi-Fi. The term was coined by Harald Haas and is a form of visible light communication and a subset of optical wireless communications (OWC) and could be a complement to RF communication(Wi-Fi or Cellular network), or even a replacement in contexts of data broadcasting. It is so far measured to be about 100 times faster than some Wi-Fi implementations,reaching speeds of 224 giga bits per second. It is wireless and uses visible light communication or infra-red and near ultraviolet (instead of radio frequency waves) spectrum, part of optical wireless communications technology, which carries much more information, and has been proposed as a solution to the RF-bandwidth limitations.
This is the best presentation i am providing to all the students, professionals and others. It will give you all a clear picture about what actually this Li-Fi technology is. This is also a easy guide to the students who are taking presentations or seminar based on this topic. LiFi is the next generation epic technology that would totally change the world to a new era which is fully occupied with the light as source for everything..........I REPEAT LIGHT AS SOURCE FOR EVERYTHING
We are all using internet services but we cannot implement anything. Please implement useful network applications and this type of networks. It is not order it is request.
Light Fidelity(Li-Fi) is a bidirectional, high speed and fully networked wireless communication technology similar to Wi-Fi. The term was coined by Harald Haas and is a form of visible light communication and a subset of optical wireless communications (OWC) and could be a complement to RF communication(Wi-Fi or Cellular network), or even a replacement in contexts of data broadcasting. It is so far measured to be about 100 times faster than some Wi-Fi implementations,reaching speeds of 224 giga bits per second. It is wireless and uses visible light communication or infra-red and near ultraviolet (instead of radio frequency waves) spectrum, part of optical wireless communications technology, which carries much more information, and has been proposed as a solution to the RF-bandwidth limitations.
This is the best presentation i am providing to all the students, professionals and others. It will give you all a clear picture about what actually this Li-Fi technology is. This is also a easy guide to the students who are taking presentations or seminar based on this topic. LiFi is the next generation epic technology that would totally change the world to a new era which is fully occupied with the light as source for everything..........I REPEAT LIGHT AS SOURCE FOR EVERYTHING
ER Publication,
IJETR, IJMCTR,
Journals,
International Journals,
High Impact Journals,
Monthly Journal,
Good quality Journals,
Research,
Research Papers,
Research Article,
Free Journals, Open access Journals,
erpublication.org,
Engineering Journal,
Science Journals,
Light Fidelity is an emerging trend of Internet distributions. With speeds such as 100GBPS, it will be no less than a boon for the regular internet users. Lifi is a substitute of wifi where the internet is distributed to customers via lights, even if they are visibly off to the naked eye.
the future of wifi.Light Fidelity or Li-Fi is a Visible Light Communications (VLC) system running wireless communications travelling at very high speeds. Li-Fi uses common household LED (light emitting diodes) lightbulbs to enable data transfer, boasting speeds of up to 224 gigabits per second
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
3. WHAT IS LI – FI ?
LI FI- LIGHT FIDEALITY
LI-FI is transmission of data through
illumination ,i.e. sending data through a LED
light bulb that varies in intensity faster than
human eye can follow
4. HISTORY
Professor Harald Hass, a teacher in the field of
Mobile Communications in the University of
Edinburgh- Known to discover the Li-Fi
technology.
In 12th July 2011 he used LED table lamp to
project a video of Blooming flowers on to a
screen.
At TED Global Haas demonstrated this
technology and successfully transmitted 10
Mbps data from server to client.
Later German Scientists developed this and
transmitted 800mbps data using Red, Green,
Yellow LEDs only.
6. WORKING CONTINUED
Server is connected to internet, this is content
is streamed into digital signal and passed
through simple electric wires.
The LED lamp when turned ON converts the
electric energy into light along with the digital
internet signal.
A photo receptor is connected with a dongle
which is further connected to PC, Mobile,
Tablets.
The main requirement is that the LED must vary
in intensity to do that it must switch ON& OFF
Faster than human eye can capture.
7. DIFFERENCE BETWEEN WI-FI &LI-FI
Wi-Fi (Wireless Fidelity) uses Radio Waves thus
ranges to a vast zone which consumes more
power. Its speed is limited to 10gbps.
Li-Fi uses Electro-Magnetic Wave thus confines
to small confined place up to which the light ray
is confined. Consumes less power yet has a
highest speed of 123gbps.
8. APPLICATIONS OF LI-FI
Traffic Signalling- this technology can be made
communicable with the car’s LED thus traffic
problem can be minimised.
Radio Frequency restricted zones such as
petrol pumps can employ this technique.
The aeroplane communicates with RF thus the
problem of internet use can be overcome by
this.
In ocean beds thus can be a aid to our defence
communication.
Rural internet facility can be culminated by this
with set up of LED tree.
9. CONCLUSIONS
The possibilities are numerous and can be
explored further. If this technology can be put
into practical use , every bulb can be used
something like a Wi-Fi hotspots to transmit
wireless data
