doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 1

Overview

• Body Area Networks – S. Drude– Quick summary use cases, requirements

• Channel Models and Health Aspects of PAN and BAN – A. J Johansson– Magnet and Magnet Beyond– Channel modelling– Medical implant communications– Health aspects of PAN/BAN implants

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 2

Body Area Network

• Broad range of possible devices

• Broad range of media types

• Connect everything you carryon you and with you

• Offer “Connected User” experience

• Matches low power environment

• Challenge – scalability data rate, power

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 3

Body Area Networks –Target PositionAverage 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 Are

a Netw

ork

5 mW 2 mW

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 4

Body Area Networks

• Usage Scenarios– Body senor network– Fitness monitoring– Wearable audio– Mobile device centric– Video stream

– Remote control &I/O devices

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 5

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

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 6

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

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 7

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

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 8

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

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 10

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

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 11

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

doc.: IEEE 802.15-06-0331

Submission

July 2006

Stefan Drude, PhilipsSlide 12

BAN Requirements - Draft

• Distance 2 m std, 5 m special• Piconet density 2 - 4 nets / m2 • Devices per network max. 100• Net network throughput 100 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)