Requirements of Wireless Communication for Wearable Computing at Work

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21 Νοε 2013 (πριν από 3 χρόνια και 6 μήνες)

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Requirementsof Wireless
CommunicationforWearable
Computing at Work
P. Hofmann1
, C. Bettstetter1, K. Kuladinithi2,
A. Timm-Giel2, C. Görg2, R. Ok3, Z. Sarilar3
IFAWC 2005 –Zürich –March, 17/18th, 2005
1DoCoMo Euro-Labs, 2 Uni-Bremen MTRC/ComNets, 2Mobilera
Communication
Requirements
•Communicationbetween
devices(I)
•Betweenmobile workers
directly(II)
•To colleaguesand serversin
the„outsideworld“directlyor
indirectly(II/III)
•To devicesin the(ambient)
environment(III)
Internet
UMTS
Internet
UMTS
WirelessCommunication
Standards
IEEE 802.11e, i, n, s (MeshNetw.)
IEEE 802.16 (WiMAX)
IEEE 802.20 (MBWA)
HSDPA
IEEE 802 a/b/g
GSM/GPRS/EDGE
UMTS
III
IEEE 802.11e (QoS)
IEEE 802.11i (Security)
IEEE 802 a/b/g
(ad hoc mode)
Bluetooth(IEEE 802.15.1)
II
IEEE 802.15.3 (UWB)
IEEE 802.15.4 / ZigBee
Bluetooth(IEEE 802.15.1)
I
Future Systems
Systems on
theMarket
Requirements
•Application
–Quality-of-Service:
•Datarate
•Maximum delay
•Maximum Bit Error Rate
–Security
•EconomicalRequirements
Hardware Requirements
•Small Size
•Light Weight
•LowPrice
LimitedBatteryCapacity
LimitedProcessingPower
RequirementsbyApplication
Fields (Scenarios)
Four Application Fields:
1.Firefighter Assistant (Paris Fire Brigade)
2.Wearable Computing in Production
(Skoda)
3.Wearable Computing in Maintenance
(EADS)
4.The Clinical Pathway (Gespag
1. Firefighter (Paris Fire Brigade)
•Voice & data with low delay
•High reliability / Robustness
•Security / Privacy
•Some costs can be accepted
2. Wearable Computing in
Maintenance (EADS)
•Video with high data rate
•Long operating hours
•Small size
•Low operational costs
•Some delay can be accepted
3. The Clinical Pathway
(Gespag)
–Privacy / Encryption very important
–Electromagnetic Compatibility
4. Wearable Computing in
Production (Skoda)
–Teaching via video -> high data rates
–Privacy/security: data encryption
–Battery lifetime less important, as they can be
recharged after lesson
Conclusion
•In wearIT@work existingtechnology and
userrequirementson communicationshave
beenidentified.
•Integration & adaptationisongoing.