1. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Request for a VLC interest group] Date Submitted: [November 2007] Source: [see next page] Company [] Address [] Voice:[], FAX: [], E-Mail:[etwon@samsung.com] Re: [] Abstract:[] Purpose:[formation of interest group] Notice:This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release:The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.

2. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 2 Visible Light Communications Look Who’s Coming Telecommunication R&D Center 2007. 11. 12 Global Standards & Research Lab.

3. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 3  Contents Title : Look who’s coming – VLC Contents Ubiquitous connectivity New Idea for the Communication? Introduce of the VLC Application scenario Peripheral Interface of VLC Basic experimental setup Feasibility Test Information Broadcasting of VLC Experimental setup Feasibility Test LED as a light source Network Access Technical Fields to be discussed Technical Issues Conclusion – Look what’s coming

4. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 4 Let there be LIGHT !! Let there be LIGHT !! Existing or Being everywhere at the same time  Ubiquitous Connectivity

5. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 5 There is a large range of new opinion on these consideration.  New Idea for the Communication? Security Regulation Eye safety Health Power consumption Invisibility Multimedia Eavesdropping Frequency restriction Low price Human body safe Eye safety regulation Low power consumption Mobility Ease to use Using it everywhere High Speed Invisibility Price Convenience

6. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 6 Visible Light Communication Bandwidth Security Coverage Mobility IR UV 780nm 380nm 1nm 100 μ m RF 3cm 1m visible IR UV 780nm 380nm 1nm 100 μ m RF 3cm 1m visible  Introduce of Visible Light Communication High speed communication using Visible Light from the LED

7. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 7  Introduce of Visible Light Communication Visible Light Communication is one of the newest communication technology using "Visible Light". Visibility : Aesthetically pleasing environment Security : What You See Is What You Send. Health : Harmless for human body and electronic devices Unregulated : no room to use more radio frequency Using inside the aircraft, spaceship, hospital, etc… Eye safety : regulation

8. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 8 Public Information Private Information Private information information-oriented society While some welcome, other fear. Violate personal information Protect the privacy right. Data can be confirmed by your eye Peripheral Interface Information Broadcast  Application Scenario of VLC Public Information information-oriented society, Deluge of information You can choose the information Your Needs & Your Will Whenever, wherever, whatever you want.

9. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 9  Application Scenario of VLC Information Broadcast SAMSUNG English Chinese Korean Mobile to Mobile Mobile to Multimedia Keyless door entry ID check E-payment Sign Board E-book ITS Airplane Museum Product Info. Peripheral Interface

10. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 10  Peripheral Interface of VLC Peripheral Interface For the portable mobile device. Can transmit/receive the digital data using the visible light. visible TX in a USB dongle, PDA and etc. Visible Light Communication visualizes the communication pathway. Feasibility of Peripheral Interface. –Coverage, Distance & Ambient light effect. Multi-color features at higher speeds will expand its market potential.

11. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 11 PIN PD lens TIA Silicon PD RX lens free space free space Pattern Generator Error Detector Pattern Generator Error Detector RX detected data data pattern LED TX lens TX Coverage Distance  Basic Experimental Setup

12. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 12  Feasibility Test (PDA-PC/PC-PC visible link)

13. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 13 Information Broadcasting system Normal function as indication and illumination devices Can be used as communication devices for transmitting & broadcasting digital information. Message Board E-book Sign Board ITS (intelligent Transport System) Distance and Coverage of Transmission - might be improved as all of RGB LEDs could be modulated. Feasibility of Information Broadcasting system - based on signboard. –Using 4 LED array modules Picture source: ★ LED Magazine ★  Information Broadcasting of VLC

14. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 14 ~ 50,000 Lux (Outdoor environment)  Experimental setup (with, w/o ambient)

15. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 15 Red LED : 16 x 16 Green LED : 16 x 16 … … … … … … … … … … … … … … … … 4 modules … … … … 1 module 38 cm  Feasibility Test (visible signboard)

16. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 16 PLC (Power Line Communication) : other application scenario –A kind of communication system using electric power lines Power line communication Visible light Lamp Electrical Signal Power line PLC Modem  Network Access

17. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 17 Light-Emitting Diode (LED) : –A semiconductor diode that emits incoherent light when electrically biased. –energy-saving / more efficient –difficult to damage with external shock LED market growth : –faster response times. –small Year Revenue($ Million) [ Visible LED Application ] Visible LED Market Forecast Growth in the high brightness LED Market Source : Strategies Unlimited 2005 Source : LED Magazine March 2007  LED as a Light Source

18. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 18 Considering Factor Network Topology Centralized network between AP and VL device. Distributed network between VL devices To establish visible light link Initial network entry Channel access Media access control Modulation IM (Intensity Modulation) Sub-carrier Resource management (RM) and QoS Efficient resource allocation to different connections Reuse of resources Power saving/power control Sleep/Idle modes for power saving Indicate arrival of packets to nodes in power save mode Buffer management for devices in power save mode Power control for battery management and bandwidth management Mobility (micro mobility) when the RX moving  Technical Fields to be discussed

19. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 19 Eye Safety Relatively Low Responsivity of PDAmbient Light Network Access Plan  Technical Issues

20. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 20 Introduce VLC as a new communication Application scenario using VLC Define 2 type of information. Peripheral Interface Information Broadcasting Feasibility Test Other side Light source (LED), Network access (PLC application) Technical Field to be discussed Technical Issues  Conclusion – Look What’s Coming

21. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 21  Other Interested Parties SIEMEMS France Telecom Oxford University ETRI VLCC

22. doc.: IEEE 802.15-07/0911r0 Submission Nov 2007 Eun Tae Won, SamsungSlide 22 END THANK YOU !