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LiFi – How every LED light could connect you to the Internet | Nikola Serafimovski | TEDxBucharest


[Applause]

[Applause] imagine a world where every LED light is

imagine a world where every LED light is

imagine a world where every LED light is an internet access point could life I

an internet access point could life I

an internet access point could life I offer unprecedented bandwidth and data

offer unprecedented bandwidth and data

offer unprecedented bandwidth and data we are consuming a hundred percent more

we are consuming a hundred percent more

we are consuming a hundred percent more Wireless data every year that is

Wireless data every year that is

Wireless data every year that is doubling the amount of wireless data we

doubling the amount of wireless data we

doubling the amount of wireless data we are consuming from one year to the next

are consuming from one year to the next

are consuming from one year to the next that’s exponential growth but what is

that’s exponential growth but what is

that’s exponential growth but what is exponential growth legend has it that

exponential growth legend has it that

exponential growth legend has it that chess was invented by an Indian

chess was invented by an Indian

chess was invented by an Indian mathematician in the 6th century the

mathematician in the 6th century the

mathematician in the 6th century the ruler at the time was so impressed with

ruler at the time was so impressed with

ruler at the time was so impressed with the game that he offered the

the game that he offered the

the game that he offered the mathematician any reward he wanted the

mathematician any reward he wanted the

mathematician any reward he wanted the mathematician was a humble man so he

mathematician was a humble man so he

mathematician was a humble man so he asked for one grain of rice on the first

asked for one grain of rice on the first

asked for one grain of rice on the first field of the chess board and then

field of the chess board and then

field of the chess board and then doubled on every subsequent field so one

doubled on every subsequent field so one

doubled on every subsequent field so one grain of rice on the first 200 4 on the

grain of rice on the first 200 4 on the

grain of rice on the first 200 4 on the third field and so on as it happens a

third field and so on as it happens a

third field and so on as it happens a chess board has 64 fields the total

chess board has 64 fields the total

chess board has 64 fields the total amount of rice on the 64th chess field

amount of rice on the 64th chess field

amount of rice on the 64th chess field is 300 times larger than the global

is 300 times larger than the global

is 300 times larger than the global world production of rice for 2016 that’s

world production of rice for 2016 that’s

world production of rice for 2016 that’s 14 centuries later that’s exponential

14 centuries later that’s exponential

14 centuries later that’s exponential growth what we are doing now is that in

growth what we are doing now is that in

growth what we are doing now is that in 2016 we have consumed more wireless data

2016 we have consumed more wireless data

2016 we have consumed more wireless data than in the entire history of humanity

than in the entire history of humanity

than in the entire history of humanity put together and some of it might be cat

put together and some of it might be cat

put together and some of it might be cat videos but it’s happening nonetheless so

videos but it’s happening nonetheless so

videos but it’s happening nonetheless so what happens when we move from 5 billion

what happens when we move from 5 billion

what happens when we move from 5 billion connected devices to 20 billion

connected devices to 20 billion

connected devices to 20 billion connected devices what happens when the

connected devices what happens when the

connected devices what happens when the Internet of Things becomes a reality

Internet of Things becomes a reality

Internet of Things becomes a reality when temperature sensors and pressure

when temperature sensors and pressure

when temperature sensors and pressure sensors and occupancy sensors and CCTV

sensors and occupancy sensors and CCTV

sensors and occupancy sensors and CCTV cameras and heartrate monitor

cameras and heartrate monitor

cameras and heartrate monitor are all connected wirelessly everywhere

what happens to all of the information

what happens to all of the information as everything becomes more digital what

as everything becomes more digital what

as everything becomes more digital what happens to the security of that

happens to the security of that

happens to the security of that information everything is becoming

information everything is becoming

information everything is becoming digital our passport numbers our photos

digital our passport numbers our photos

digital our passport numbers our photos our fingerprints our birth certificates

our fingerprints our birth certificates

our fingerprints our birth certificates our friends eating preferences drinking

our friends eating preferences drinking

our friends eating preferences drinking preferences good nights out all of our

preferences good nights out all of our

preferences good nights out all of our memories is digital everything we know

memories is digital everything we know

memories is digital everything we know and every day an institution gets hacked

and every day an institution gets hacked

and every day an institution gets hacked and every day that information is leaked

and every day that information is leaked

and every day that information is leaked in this digital world we do not have the

in this digital world we do not have the

in this digital world we do not have the security of walking in our home and

security of walking in our home and

security of walking in our home and locking the door behind us so we have an

locking the door behind us so we have an

locking the door behind us so we have an increasing demand for wireless data we

increasing demand for wireless data we

increasing demand for wireless data we have the increasing vulnerability of

have the increasing vulnerability of

have the increasing vulnerability of that data and we need energy to fuel all

that data and we need energy to fuel all

that data and we need energy to fuel all of this so what happens in a world of 20

of this so what happens in a world of 20

of this so what happens in a world of 20 billion connected devices as it turns

billion connected devices as it turns

billion connected devices as it turns out the data centers are just a drop in

out the data centers are just a drop in

out the data centers are just a drop in the ocean for the total energy

the ocean for the total energy

the ocean for the total energy consumption compared to the wireless

consumption compared to the wireless

consumption compared to the wireless access that is required for them in 2015

access that is required for them in 2015

access that is required for them in 2015 according to the Center for energy

according to the Center for energy

according to the Center for energy efficient communications the world

efficient communications the world

efficient communications the world consumed 43 terawatt hours just for

consumed 43 terawatt hours just for

consumed 43 terawatt hours just for accessing the wireless cloud that’s

accessing the wireless cloud that’s

accessing the wireless cloud that’s equivalent to the yearly consumption of

equivalent to the yearly consumption of

equivalent to the yearly consumption of energy for 2015 of Romania but there’s

energy for 2015 of Romania but there’s

energy for 2015 of Romania but there’s another piece that also consumes a lot

another piece that also consumes a lot

another piece that also consumes a lot of energy light light accounts for about

of energy light light accounts for about

of energy light light accounts for about 20% of all in building electricity

20% of all in building electricity

20% of all in building electricity consumption even with LEDs that’s a lot

consumption even with LEDs that’s a lot

consumption even with LEDs that’s a lot of energy so we have this unprecedented

of energy so we have this unprecedented

of energy so we have this unprecedented demand for data we have the growing

demand for data we have the growing

demand for data we have the growing vulnerability of that wireless

vulnerability of that wireless

vulnerability of that wireless communications and we have an enormous

communications and we have an enormous

communications and we have an enormous carbon footprint if we want to keep

carbon footprint if we want to keep

carbon footprint if we want to keep growing in this exponential fashion what

growing in this exponential fashion what

growing in this exponential fashion what if data

if data

if data and light use the same power could we

and light use the same power could we

and light use the same power could we help solve that problem light is very

help solve that problem light is very

help solve that problem light is very contained could we lock the door on our

contained could we lock the door on our

contained could we lock the door on our wireless signal could we offer

wireless signal could we offer

wireless signal could we offer unprecedented bandwidth keep our data

unprecedented bandwidth keep our data

unprecedented bandwidth keep our data safe and repurpose the energy that we

safe and repurpose the energy that we

safe and repurpose the energy that we use for illumination to provide wireless

use for illumination to provide wireless

use for illumination to provide wireless communications life I can offer all of

communications life I can offer all of

communications life I can offer all of this and more life I was first presented

this and more life I was first presented

this and more life I was first presented and demonstrated at tEDGlobal in 2011 by

and demonstrated at tEDGlobal in 2011 by

and demonstrated at tEDGlobal in 2011 by Professor Harold Collins it refers to

Professor Harold Collins it refers to

Professor Harold Collins it refers to high-speed bi-directional and networked

high-speed bi-directional and networked

high-speed bi-directional and networked wireless communications using light it

wireless communications using light it

wireless communications using light it offers users a substantially similar

offers users a substantially similar

offers users a substantially similar experience as traditional wireless

experience as traditional wireless

experience as traditional wireless communications except using the light

communications except using the light

communications except using the light spectrum Wi-Fi is complementary to

spectrum Wi-Fi is complementary to

spectrum Wi-Fi is complementary to traditional wireless communications

traditional wireless communications

traditional wireless communications think about how many wireless access

think about how many wireless access

think about how many wireless access points you see right now on your phones

points you see right now on your phones

points you see right now on your phones in my flat in Edinburgh I regularly see

in my flat in Edinburgh I regularly see

in my flat in Edinburgh I regularly see 20 to 30 different ones if I can see

20 to 30 different ones if I can see

20 to 30 different ones if I can see them they can see me that’s interference

them they can see me that’s interference

them they can see me that’s interference that’s security which started off as a

that’s security which started off as a

that’s security which started off as a relatively big brown box during the 2011

relatively big brown box during the 2011

relatively big brown box during the 2011 demonstrator has now been reduced to

demonstrator has now been reduced to

demonstrator has now been reduced to this this is the world’s first Wi-Fi

this this is the world’s first Wi-Fi

this this is the world’s first Wi-Fi dongle by pure life I so USB dongle like

dongle by pure life I so USB dongle like

dongle by pure life I so USB dongle like many other Wi-Fi dongles that you can

many other Wi-Fi dongles that you can

many other Wi-Fi dongles that you can connect into any USB device and connect

connect into any USB device and connect

connect into any USB device and connect wirelessly using Wi-Fi to any Wi-Fi

wirelessly using Wi-Fi to any Wi-Fi

wirelessly using Wi-Fi to any Wi-Fi enabled light every communication medium

enabled light every communication medium

enabled light every communication medium started this way and over time it has

started this way and over time it has

started this way and over time it has reduced and become a chip which is now

reduced and become a chip which is now

reduced and become a chip which is now in your phone’s life I will be

in your phone’s life I will be

in your phone’s life I will be ubiquitous life I will be everywhere and

ubiquitous life I will be everywhere and

ubiquitous life I will be everywhere and it will just work so what we have here

it will just work so what we have here

it will just work so what we have here is a life I connected tablet with some

is a life I connected tablet with some

is a life I connected tablet with some additional bits and pieces to get the

additional bits and pieces to get the

additional bits and pieces to get the signal back these lights that are

signal back these lights that are

signal back these lights that are hanging are fully integrated Wi-Fi

hanging are fully integrated Wi-Fi

hanging are fully integrated Wi-Fi devices and they are providing wireless

devices and they are providing wireless

devices and they are providing wireless connectivity using the light medium as

connectivity using the light medium as

connectivity using the light medium as you can see they blend with everything

you can see they blend with everything

you can see they blend with everything else around us and they’re not

else around us and they’re not

else around us and they’re not flickering so first we need to try and

flickering so first we need to try and

flickering so first we need to try and share the screen okay so you can see

share the screen okay so you can see

share the screen okay so you can see that you can see that we are basically

that you can see that we are basically

that you can see that we are basically in flight mode and you can see on the

in flight mode and you can see on the

in flight mode and you can see on the screen that the life ix is there it’s

screen that the life ix is there it’s

screen that the life ix is there it’s just another wireless access medium so

just another wireless access medium so

just another wireless access medium so if we now go to our web browser if we go

if we now go to our web browser if we go

if we now go to our web browser if we go to a web page I can request anything I

to a web page I can request anything I

to a web page I can request anything I like and we can now play a simple video

like and we can now play a simple video

like and we can now play a simple video on our website

on our website

on our website HD whatever you like high-speed the

HD whatever you like high-speed the

HD whatever you like high-speed the important piece is that this video and

important piece is that this video and

important piece is that this video and this connectivity is available here

this connectivity is available here

this connectivity is available here under this light and if I move under a

under this light and if I move under a

under this light and if I move under a different light

different light

different light my connectivity is handed over and it

my connectivity is handed over and it

my connectivity is handed over and it resumes this is life I it is the ability

resumes this is life I it is the ability

resumes this is life I it is the ability to transmit data wirelessly in and be

to transmit data wirelessly in and be

to transmit data wirelessly in and be handed over from one light source to

handed over from one light source to

handed over from one light source to another it is this ability to move

another it is this ability to move

another it is this ability to move freely around the location which allows

freely around the location which allows

freely around the location which allows us

us

us to connect wirelessly and to provide the

to connect wirelessly and to provide the

to connect wirelessly and to provide the user with the same experience as

user with the same experience as

user with the same experience as traditional wireless communications

traditional wireless communications

traditional wireless communications except using the light/medium so this

except using the light/medium so this

except using the light/medium so this brings us to a very important point you

brings us to a very important point you

brings us to a very important point you can see that both of these lights are

can see that both of these lights are

can see that both of these lights are approximately three meters apart from

approximately three meters apart from

approximately three meters apart from each other all of the light spectrum all

each other all of the light spectrum all

each other all of the light spectrum all of that wireless data is being provided

of that wireless data is being provided

of that wireless data is being provided by this light and is not interfered with

by this light and is not interfered with

by this light and is not interfered with this light that’s a fundamental

this light that’s a fundamental

this light that’s a fundamental principle of increasing the density of

principle of increasing the density of

principle of increasing the density of wireless access points it means I can

wireless access points it means I can

wireless access points it means I can use all of the spectrum in one location

use all of the spectrum in one location

use all of the spectrum in one location and reuse all of the spectrum just a

and reuse all of the spectrum just a

and reuse all of the spectrum just a couple of metres further this is how

couple of metres further this is how

couple of metres further this is how life I solves the exponential growth in

life I solves the exponential growth in

life I solves the exponential growth in the demand for mobile data this is how

the demand for mobile data this is how

the demand for mobile data this is how we move from traditional wireless

we move from traditional wireless

we move from traditional wireless communications to light it is this

communications to light it is this

communications to light it is this ability to provide a greater spectral

ability to provide a greater spectral

ability to provide a greater spectral reuse and spatial reuse that will allow

reuse and spatial reuse that will allow

reuse and spatial reuse that will allow us to continue this growth so you may

us to continue this growth so you may

us to continue this growth so you may have seen can we go to the next slide as

have seen can we go to the next slide as

have seen can we go to the next slide as you saw Wi-Fi provides both uplink and

you saw Wi-Fi provides both uplink and

you saw Wi-Fi provides both uplink and downlink it means I can upload a video

downlink it means I can upload a video

downlink it means I can upload a video have a Skype video call and download

have a Skype video call and download

have a Skype video call and download information seamlessly it means I can

information seamlessly it means I can

information seamlessly it means I can provide high speed data rate not just

provide high speed data rate not just

provide high speed data rate not just one directional low data rate as some

one directional low data rate as some

one directional low data rate as some systems out there the lights are not

systems out there the lights are not

systems out there the lights are not flickering they’re not interfering with

flickering they’re not interfering with

flickering they’re not interfering with anyone in fact the rate of change of the

anyone in fact the rate of change of the

anyone in fact the rate of change of the LED light is so fast that we needed a

LED light is so fast that we needed a

LED light is so fast that we needed a special receiver to detect that and they

special receiver to detect that and they

special receiver to detect that and they can work when the lights are dimmed so

can work when the lights are dimmed so

can work when the lights are dimmed so if you’re at home and you’re watching a

if you’re at home and you’re watching a

if you’re at home and you’re watching a movie and you dim the light or if you’re

movie and you dim the light or if you’re

movie and you dim the light or if you’re in a restaurant that has a dimmed

in a restaurant that has a dimmed

in a restaurant that has a dimmed ambience life I will still work it works

ambience life I will still work it works

ambience life I will still work it works in daylight now this isn’t really a

in daylight now this isn’t really a

in daylight now this isn’t really a problem for the UK but in some places

problem for the UK but in some places

problem for the UK but in some places where there’s a lot of sunlight it

where there’s a lot of sunlight it

where there’s a lot of sunlight it matters and what this means is you can

matters and what this means is you can

matters and what this means is you can have smart cities light posts connected

have smart cities light posts connected

have smart cities light posts connected to light post car is connected to cars

to light post car is connected to cars

to light post car is connected to cars all of it would lie fine without

all of it would lie fine without

all of it would lie fine without problems and so next slide please

problems and so next slide please

problems and so next slide please life is a reality today it is ready for

life is a reality today it is ready for

life is a reality today it is ready for the enterprise market it is being

the enterprise market it is being

the enterprise market it is being installed in the headquarters of Mexican

installed in the headquarters of Mexican

installed in the headquarters of Mexican project from both some of France’s

project from both some of France’s

project from both some of France’s largest property developers it is

largest property developers it is

largest property developers it is installed in the headquarters of

installed in the headquarters of

installed in the headquarters of Microsoft in Paris in the University of

Microsoft in Paris in the University of

Microsoft in Paris in the University of Edinburgh and the University of

Edinburgh and the University of

Edinburgh and the University of Strathclyde and many other locations

Strathclyde and many other locations

Strathclyde and many other locations Wi-Fi is a reality today for the

Wi-Fi is a reality today for the

Wi-Fi is a reality today for the enterprise market and it will be in the

enterprise market and it will be in the

enterprise market and it will be in the future for the consumer it will

future for the consumer it will

future for the consumer it will transform the lighting industry in the

transform the lighting industry in the

transform the lighting industry in the same manner that mobile internet

same manner that mobile internet

same manner that mobile internet transform transform mobile phones

transform transform mobile phones

transform transform mobile phones providing a unique combination that will

providing a unique combination that will

providing a unique combination that will offer incredible advantages with life

offer incredible advantages with life

offer incredible advantages with life eyeing a world connected by light has

eyeing a world connected by light has

eyeing a world connected by light has become a reality

become a reality

become a reality light will always be here life I will

light will always be here life I will

light will always be here life I will offer the world unprecedented bandwidth

offer the world unprecedented bandwidth

offer the world unprecedented bandwidth and data to continue our exponential

and data to continue our exponential

and data to continue our exponential growth thank

growth thank

growth thank [Applause]

[Applause]

[Applause] [Music]

[Music]

[Music] [Applause]

”

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