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    Prof Harald Haas, CTO

    Visible LightCommunications

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    Format

    What is VLC (or Li-Fi)?

    Why?

    How it works

    The opportunity

    Applications

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    What is Li-Fi?

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    Li-Fire demo

    HD video streaming from lamp.

    http://localhost/var/www/apps/conversion/tmp/scratch_5/Li-Fire_pureVLC%20(Apple%20TV).m4vhttp://localhost/var/www/apps/conversion/tmp/scratch_5/Li-Fire_pureVLC%20(Apple%20TV).m4v
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    $1.2TrillionProblem

    Why?

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    Demand for wireless data

    W

    IRELESSD

    ATAUSE CAGR

    106%

    (Cisco)

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    Solution

    VLC is a potential solution

    Proliferation of SSL

    10,000x more visible lightspectrum

    2,000x data density of radio

    Cost advantages

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    Early Visible Light

    Communication

    The Photophone, 1880

    Alexander Graham Bell

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    Early Visible Light

    Communication

    Flash-matic, 1955

    Zenith, Eugene Polley

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    Early Visible Light

    Communication

    Light Telephone, 1971

    Nintendo, Gunpei Yokoi

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    - Lowcost

    - Low optical power

    - Low data rate

    - Low cost

    - High opticalpower

    - High data rate

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    Roadmap

    PoC SLDKLi-FiCommercialConsumer

    LightingCommsproducts

    componentslicensing

    prototype

    2011 2012 2013

    S Li h i D l

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    Smart Lighting Development

    Kit

    LED driverunit

    LED lightfixture

    VLCtransceiver

    Photodetector &Transceiver unit

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    Home Li-Fi

    PLC

    Wi-Fibroadband

    mains power

    lighting circuit

    Up to 1 Gbps over lighting circuit (Li-Fi)Up to 100 Mbps over radio (Wi-Fi)VLC provides congestion relief on downlink x10

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    Commercial Li-Fi

    Up to 1Gbps per fixture(Li-Fi) Up to 100Mbps over radio(Wi-Fi)

    VLC provides congestionrelief on downlink x100 Universal Power over

    Ethernet 60W of power full lighting control high data rates

    UPoEbroadband

    Ethernet cables

    Wi-Fi

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    Common misconceptions

    You cannot dim the lights.

    The lights flicker.

    This is for downlink only.

    There will be interference fromsunlight.

    Lights need to be on so this is

    inefficient.

    You must have line-of-sight.

    This is a disruptive technology.

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    The opportunity- Lighting Industry $100 billion

    - Wireless Communications $1.2 trillion- Lights can provide wireless comms.

    - LED lighting will become ubiquitous

    - VLC is a value added service forlighting

    - VLC is an alternative service forcomms

    - Copper cable -> optical cable- Microwave LoS -> Free space optical(FSO)

    - Indoor wireless -> VLC?

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    The opportunity

    - You tend to illuminate in the sameplaces you wish to communicate.

    - Lighting already provides

    infrastructure

    power, potentialback-haul cables.

    - Lighting industry already hasdistribution channels to the

    correct customers.

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    Application Areas

    Smart Lighting, Smart Buildings Mobile Connectivity

    Wi-Fi Spectrum Relief

    Indoor Positioning Systems

    Hazardous Environments Vehicle & Transportation

    Defence & Security

    Hospital & Healthcare

    Aviation Underwater Communications

    Toys

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    LightMessage App

    Text message from a light bulb!

    http://localhost/var/www/apps/conversion/tmp/scratch_5/pureVLC_LightMessage720.movhttp://localhost/var/www/apps/conversion/tmp/scratch_5/pureVLC_LightMessage720.mov
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    www.pureVLC.com

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    Network Capacity per Device

    Forecast Traffic per Device

    Network Capacity per Device

    YearNetworkcapacity/Forecasttraffic(MB/Month)

    Shortfall9

    7.2

    %