“Smart paint” containing fluorescent and phosphorescent pigments could extend the possibilities of proposed LiFi networks, report a team led by K S Narayan at the Jawaharlal Nehru Centre for Advanced Scientific Research in Bengaluru, India. The researchers analysed the effect of nearby luminescent surfaces on the noise characteristics of visible light communication system (VLC) signals, and found that secondary emission could limit bandwidth locally by overwhelming receivers. The residual glow from phosphors could even be modulated to transmit a signal after the primary LED source has been turned off.
LiFi uses visible and near-visible light to connect electronic devices in much the same way as now nearly ubiquitous WiFi. Like its more familiar counterpart, LiFi technology is expected to play a role in connecting devices within the incipient internet of things. Unlike microwaves, however, visible-light signals cannot pass through walls, meaning that LiFi networks are, in principle, less vulnerable to eavesdropping from outside.
Know more visit http://physicsworld.com/
A inventor from Germany has claimed a major breakthrough in revolutionising how we access the internet.
Harald Haas is the man behind LIFI – a technology which allows internet data to be sent and received via LED lights.
His company, Pure LIFI, has recently released a USB dongle device that enables laptops and tablets to be connected to the burgeoning technology.
“I think it’s not a question of if, it’s a question of when,” Haas told Euronews. “LIFI is a necessity and it will come.
“This is dongle is a real breakthrough that allows us to engage larger scale projects. The pilots we have equipping a number of office environments but now we can equip a full floor of a hotel or an airport.”
How does it work?
Signals are sent via the light stream – at frequencies the human eye cannot detect – to sensors on your device and vice-versa.
But, how does the internet get into the light source?
Haas says there are two solutions and both involve sending data signals down the same cable as the light’s power source.
Who is Harold Hass Know more
The article is originally published at Euro News Read More
Wireless Fidelity (Wi-Fi) and Light Fidelity Li-Fi technologies are more demanding in recent time. There are huge business opportunities available to help new players enter the market and to collaborate with big companies to provide various products and services. Particularly for Li-Fi technology, the new start-up market is coming up with advanced products, services and solutions in the market and is expected to double in the next 5 to 7 years. In this space, cooperation and mergers and acquisition laws are expected to continue.
To understand the networking environment, the report Wi-Fi and Li-Fi markets is underlined. The report speaks about the mode, products, services, components, circles and regions deployed for both Li-Fi and Wi-Fi. In the direction of adoption of main stakeholders in the next 5-7 years, information about major trends, drivers, investments, vertical player initiatives and government initiatives can be found. Furthermore, this report gives details of the major challenges that will affect market growth.
As per research report, the Wi-Fi and Li-Fi markets are estimated to witness a CAGR of 15.0% and 61.3%, respectively during the forecast period 2016–2022.
Read more: http://www.digitaljournal.com/pr/3573190#ixzz4zN1KOMhh
This press release was orginally distributed by SBWire
Li-Fi is the abbreviation of light fidelity and was expressed by Harald Hass who was a German physicist. In Li-Fi the information is transferred through light signals instead of radio waves and mostly Wi-Fi plays an efficient role for wireless information coverage within the buildings whereas by using Li-Fi we can provide the excel density data coverage in a particular area without any radio interference issue.
It furnishes well bandwidth, assurance than Wi-Fi and excels speed. In the coming generation, this technology will be used for transmitting data or information to smartphones, laptops etc. through the light in a room.Li-Fi or Light Fidelity refers to 5G Visible Light Communication systems using light-emitting diodes as a medium to high-speed communication in a similar manner as Wi-Fi.
Read More Source
What if every light bulb in the world could also transmit data? At TEDGlobal, Harald Haas demonstrates, for the first time, a device that could do exactly that. By flickering the light from a single LED, a change too quick for the human eye to detect, he can transmit far more data than a cellular tower — and do it in a way that’s more efficient, secure and widespread.
Who is Harold Haas?
Harald Haas is the pioneer behind a new technology that can communicate as well as illuminate
Read more about him Click here
Watch his Video below which is on Ted Talk . Article Excerpt from Ted Talk