1. doc.: IEEE 802.15-06-0331 Submission Body Area Networks July 2006 Stefan Drude, PhilipsSlide 1

2. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 2 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Tutorial on Body Area Networks] Date Submitted: [July 18, 2006] Source: [Stefan Drude] Company [Philips] Address [High Tech Campus 60, 5656 AG Eindhoven, The Netherlands] ] Voice:[+31 40 27-23431], FAX: [+31 40 27-22764], E-Mail:[stefan.drude@philips.com ] Re: [Tutorial] Abstract:[The contribution reflects the information presented at the tutorial on body area networks presented at the San Diego meeting on July 18, 2006.] Purpose:[To provide information on body area network use cases, typical requirements, and to start the process on possibly starting a study group in 802.15 on this topic.] 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.

3. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 3 Overview Body Area Networks – S. Drude –Quick summary use cases, requirements

4. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 4 Body Area Network Broad range of possible devices Broad range of media types Connect everything you carry on you and with you Offer “Connected User” experience Matches low power environment Challenge – scalability data rate, power

5. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 5 Body Area Networks –Target Position Average power consumption, sustained data rate 1000 mW500 mW100 mW 50 mW 10 mW 1 Gbit/s 100 kbit/s 1 Mbit/s 10 Mbit/s 100 Mbit/s 1 kbit/s 10 kbit/s Wireless USB IEEE 802.11 a/b/g Bluetooth ZigBee 200 mW 20 mW Body Area Network 5 mW 2 mW

6. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 6 Body Area Networks Usage Scenarios –Body senor network –Fitness monitoring –Wearable audio –Mobile device centric –Video stream –Remote control & I/O devices

7. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 7 Body Sensor Network Medical application –Vital patient data –Wireless sensors –Link with bedside monitor –Count on 10 – 20 sensors Five similar networks in range Minimum setup interaction Potentially wide application Total traffic / patient < 10 kbps

8. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 8 Fitness Monitoring Central device is MP3 player Wireless headset included Expand functionality –Speed, distance –Heart rate, respiration monitor –Temperature sensor –Pacing information –Location information –Wristwatch display unit –Etc. Total system load < 500 kbps Synchronization may go faster

9. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 9 Wearable Audio Central device is headset Stereo audio, microphone Connected devices –Cellular phone –MP3 player, PDA –CD audio player –AP at home –Handsfree car –Remote control –Others Requires priority mechanism Network load < 500 kbps

10. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 10 Mobile Device Centric Mobile terminal is central point Covers broad set of data –Sensors – vital, other –Headset –Peripheral devices –Handsfree / car Provide gateway to outside –Offload sensor data, other Requires priority mechanism Network load < 500 kbps

11. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 11 Personal Video Central device is video camera –Camera sensor, recording, display Stream video content SDTV, HDTV Connect other devices –Personal storage device –Playback device w/ large display –Remote beamfinder –Location information (meta data) –Mobile communications device (MMS) –Home media server (sync) Total traffic load: 10 – 60 Mbps

12. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 12 Remote Control & I/O Devices Remote control device Increase consumer convenience Makes headset control practical Stand-alone vs shared function Combine with wristwatch display ? Printers Identification, storage Wireless pen Complement BAN functionality

13. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 13 Technical Requirements There is no specific standard for BANs –Current standards come close for specific use cases, not broad enough –Issues: power consumption, discovery, QoS –Support for very low power devices, sensors Target less than 10% power consumption for communications compared to total device Have single standard with broad range of supported data rate - scalability

14. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 14 BAN Requirements - Draft Distance2 m std, 5 m special Piconet density2 - 4 nets / m 2 Devices per network max. 100 Net network throughput100 Mbit/s max. Power consumption~ 1mW / Mbps (@ 1 m distance) Startup time< 100 us, or < 10% of TX slot Latency (end to end)10 ms Network setup time< 1 sec (after initial setup, per device)

15. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 15 BAN Requirements - Draft Implementation module cost Should be comparable to Bluetooth module Effective sleep mode(s) Concept for effective, remote wake-up Operates in global, license-exempt band

16. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 16 BAN Requirements - Draft Privacy, security Peer to peer communication, point to multi- point Omni-directional antennas: small, flexible Future proof [for 5 years?] –Upgradeable, scaleable, backwards compatibility Support for several power management / consumption schemes [classes]

17. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 17 BAN Requirements - Draft Quality of service, guaranteed bandwidth –Specific definitions, depends on application Graceful degradation of services –Depends on application, not always desireable Concurrent availability of asynchronous and isochronous channels Low duty cycle and high duty cycle modes Very low duty cycle applications (sensors)

18. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 18 Interest Group on BAN in 802.15 Conclusions on low data rate applications Operates on, inside, or in the vicinity of the body Limited range (<.01 – 2 meters) The channel model will include human body effects. (absorption, health effects) Extremely low consumption power (.1 to 1 mW) for each device Capable of energy scavenging / battery-less operation Support scalable Data Rate: 0.01 – 1,000 kbps (optional 10 Mbps)

19. doc.: IEEE 802.15-06-0331 Submission July 2006 Stefan Drude, PhilipsSlide 19 Interest Group on BAN in 802.15 (2) Conclusions on low data rate applications Support different classes of QoS for high reliability, asymmetric traffic, power constrained Needs optimized, low complexity MAC and Networking layer High number of simultaneously operating piconets required Application specific, security/privacy required Small form factor for the whole radio, antenna, power supply system Locating radios (” find me”) mode