1. doc.: IEEE 802.15-06-0331
Submissio
n
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

2. doc.: IEEE 802.15-06-0331
Submissio
n
July 2006
Stefan Drude, PhilipsSlide 2
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

3. doc.: IEEE 802.15-06-0331
Submissio
n
July 2006
Stefan Drude, PhilipsSlide 3
Body Area Networks –Target Position
Average power consumption, sustained data rate
1000 mW500 mW100 mW50 mW10 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 mW20 mW
BodyAreaNetwork
5 mW2 mW

4. doc.: IEEE 802.15-06-0331
Submissio
n
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

5. doc.: IEEE 802.15-06-0331
Submissio
n
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

6. doc.: IEEE 802.15-06-0331
Submissio
n
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

7. doc.: IEEE 802.15-06-0331
Submissio
n
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

8. doc.: IEEE 802.15-06-0331
Submissio
n
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

9. doc.: IEEE 802.15-06-0331
Submissio
n
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

10. doc.: IEEE 802.15-06-0331
Submissio
n
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

11. doc.: IEEE 802.15-06-0331
Submissio
n
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)