00:00So viewers, we have a father of Li-Fi, Professor Hart, sir. I want to ask about Li-Fi that
00:11transfer data from light. Can you, through our channel, please tell us about Li-Fi?
00:17Yeah, very, very well. I mean, very happy to talk about Li-Fi. So as I said, Li-Fi is
00:22wireless communications with light. And we use light waves from visible light to infrared or
00:32even ultraviolet light to transmit data at very high speeds. And the idea really is to turn any
00:39any light transmitter, any light source, any light bulb in your room into a high-speed Li-Fi access
00:45point. Our current research looks at really high-speed Li-Fi and looking at terabit per second
00:51aggregate data rates in a room from a light source. So, right. So that's really unlocking
00:57new capabilities of wireless connectivity. If we talk about the scale, how much experiments
01:02we have done on that? And so, I mean, we've done a lot of experiments and we have also spun out a
01:08company, Pure Li-Fi in the United Kingdom that has developed Li-Fi products that they brought to the
01:14market and it's widely widely spread in various sectors. So we have had many, many pilots, many,
01:23many applications from sort of in industrial environments, in hospital environments, in schools,
01:31in big, big halls, and also at home. So really, there's many applications where I've seen
01:40Li-Fi coming, coming into play. So transferring data also comes with threats like cyber threats
01:46and all of these things. If you are transferring data through light, how do we save ourselves from,
01:51you know, cyber attacks or leaking or privacy things? You touch on a very important advantage of
01:58Li-Fi, which is the security. So light doesn't go through walls. So that's why if you have a
02:04wireless access point with light in a room with windows, even with windows, it is not possible to,
02:14or hardly possible to send signals outside that room. Even with windows, you need to be very close
02:21and you need to have very good optics on the other side to extract information from a room in a Li-Fi
02:28scenario. Physical layer security, privacy, it enables that on from the very, very basic
02:36data transmission layer onward. Sir, how was your experience coming to IMC to India?
02:43And how are you experiencing meeting telecommunication people over here? I've just arrived,
02:49I must say, I've just arrived from the from the UK. And what I've seen so far is really amazing,
02:56the number of people that are coming here. And the industry is very, very large. And I know
03:02India is on a transformation. And essentially, connectivity is a nervous system of a modern
03:08society. And that's what India is trying to establish. So you need connectivity deep in your
03:14fibers, you need connectivity in your rooms, in your data center, in your hospitals. And you really need
03:21massive connectivity, a large nervous system that really make the future industries to work.
03:30If we see the speed of 6G and this Li-Fi, how we compare this, like is Li-Fi is much faster than
03:386G if we compare? I mean, 6G doesn't talk much about data rates. It talks more about security, resilience,
03:46and making things work and making networks better, in a sense, which is good. And also making networks
03:53more carbon neutral. So zero bit, zero energy. So what Li-Fi does is it is working around that
04:03theme. So where it's consolidation happening in 6G. But with Li-Fi, we are unlocking new capabilities,
04:09right? If you want to, for example, have new capabilities on your smartphone, for example,
04:15holographic displays, where you see three dimensional displays, then you really need data
04:21rates in the multiples of 10 gigabit per second. So towards 100 gigabit, towards a terabit per second.
04:31And these are new dimensions, new horizons. And the radio spectrum is not made for these really,
04:36really high data rates. But the visible lights, the optical spectrum is made for that because it
04:42is as much more bandwidth available. So my last question to you would be,
04:48are we planning, like Li-Fi is already working in UK, are we planning to transfer technology or
04:53something to India also to collaborate with India also? I would be absolutely delighted to collaborate
04:59with the talent that is here in India. And the, I mean, I have called operation with a lot of
05:04colleagues in Indian IITs. And I know there's a lot of talent and a lot of interest in Li-Fi.
05:12I would be delighted to work with the colleagues here and also to commercialize it in India and see
05:18if we can help you.
05:23you
Comments