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Li-Fi technology is a true enabler of internet of things and everything

Published on June 3, 2015

Research at the Li-Fi Centre, University of Edinburgh A Li-Fi node is built on strong communication and networking capabilities of optical wireless physical and above TCP/IP layers with a clear vision to connect things and everything anytime, everywhere with very minimal capital expenditure (CAPEX) and operation expenditure (OPEX).  Exploiting (using) genuinely the purpose of the…


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In the future, topology matters the most

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Research at the Li-Fi Centre, University of Edinburgh Consumer market research published worldwide indicates that future networks will be faster but capacity problems could still remain [1]. It further reveals that ‘topology’ – the make-up of transmitters providing the network signal – will be increasingly important for meeting demand in densely-populated areas. We can find…


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Reliable communication and improved networking in a Li-Fi network

Published on May 25, 2015

Research at the Li-Fi Centre, University of Edinburgh Since Li-Fi technology was first introduced to the public by Professor Harald Haas in his 2011 TED Global Talk, it has attracted ever increasing attention from many researchers. Li-Fi is a high-speed, bidirectional and fully networked broadband wireless technology which is aimed at offloading the existing Wi-Fi…


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Li-Fi/Wi-Fi hybrid networks enables the internet everywhere

Published on May 18, 2015

Research at the Li-Fi Centre, University of Edinburgh Due to the wide use of multi-media mobile devices, Wireless Fidelity (Wi-Fi) is getting more and more popular in public. Since 2013, more than 5 billion smart devices use Wi-Fi every day, and this causes a systems overload. This often happens often to people at airports and…


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Best Paper Award by IEEE VTC Spring 2015

Published on May 13, 2015

Congratulations to Harald Haas and Dushyantha Basnayaka, Research Associate at the Li-Fi Centre on winning the Best Paper Award today at VTC Spring conference in Glasgow UK for their joint paper, ‘Hybrid RF and VLC Systems: Improving User Data Rate Performance of VLC Systems’.


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Harald Haas talks about Li-Fi enabled multi-function LEDs

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Harald Haas explains how Li-Fi works together with Wi-Fi systems in hybrid networks, and how the LED lighting industry must add new features and services beyond illumination. He says,”Using Li-Fi technology to create an electronic gadget, a light is now an electronic device, which can integrate motion sensors, cameras, photo-detectors,  an “iLight”, a multi-function LED.” Link to…


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Is the concept of MIMO suitable for Li-Fi?

Published on May 12, 2015

Research at the Li-Fi Centre, University of Edinburgh Wireless communication has already shaped our daily lives, and multi-media devices such as smart phones and tablet PCs affect the way that we work, entertain and socialise. In addition, in the next couple of years, it is expected that wireless communication will become part of our lives in…


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Robust connection and flexibility in a networked indoor visible light communication (VLC) system

Published on May 8, 2015

Research at the Li-Fi Centre, University of Edinburgh In typical large indoor environment such as a large office or conference room, multiple light emitting diode (LED) lighting fixtures meet the need for lighting. This brings an opportunity of embedding a networked VLC system into an existing lighting network. A potential VLC network system functions as a…


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Angle Diversity: Creates ‘compound eyes’ in Li-Fi

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Research at the Li-Fi Centre, University of Edinburgh Have you ever seen the compound eye of insects? If so, you must be astonished by its sophistication. In general, a compound eye consists of thousands of individual photo receptor units which are located on a convex surface and thus pointing to a slightly different direction. When…


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Why is Li-Fi Technology used in gas well monitoring?

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Warning sign - do not use mobile phones here

Research at the Li-Fi Centre at the University of Edinburgh We often see a warning sign in a petrol station, `Do not use mobile phones’. You might ask how can a mobile phone cause an explosion? Some research shows that mobile phones pose no hazard for petrol stations. However, in physics, the antenna of a…


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