Transcript Slide 1

Advanced Systems Group
Architecture and Services of
Network Applications
Prof. Dimitri Konstantas
http://asg.unige.ch
http://asna.ewi.utwente.nl/
[email protected]
ASNA
History : Mobile Health
Mobile
Networks
Vital Signs
User data
Analysis &
Content
Management
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Wireless Health
Broker &
Service Provider
Doctor
Hospital
Patient Feedback Loop in Real-Time
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M-health Results
Commercial System
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for commercial use
highly profit oriented
pre-configured
Certification
New features coming from
research
Research System
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medical research
non-profit oriented
open system, dynamically
adaptable
No certification
New, customized features
can be commercialized after
validation
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What is next ??
From the research point of view:
 Add context awareness for mobile patients
 Provide means for fine grain wireless
networks’ QoS information
 Automatic analysis of incoming vital signal
measurements
From the commercial point of view
 Transfer research results to commercial
product
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Research Subjects at ASG
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Quality of Service
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Trust of spatial information
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How the application/user/service anticipate the
available QoS of a wireless network?
Can we trust the spatial information coming from a
mobile device?
Hovering Information
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Can server free spatial information exist?
Research Subjects at ASG
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Mobile Health
Context aware services and applications
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Development of E2E QoS-forecast service
Towards QoS-and context-aware mobile applications
Goal: to know and adapt to the forecasted E2E QoS
2.5G
2.5G // 3G
3G // WLAN
WLAN /…
/…
Internet
Mobile Operator
Network
application
server
Enterprise
Network
E2E QoS
forecast service
mobile game user
Problem: no guarantees + no knowledge on E2E QoS
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Development of E2E QoS-forecast service
Towards QoS- and context-aware mobile applications
working day
lunch-time
weekend day
lunch-time
Forecasted E2E QoS
!
E2E QoS depends on:
• user location, time and mobility level
• mobile operator, wireless technology
•…other user-context …
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Trust and Security in Spatial Messaging
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Problem
Spatial messaging has little success because the
lack of a trust mechanism prevents lots of serious
applications.
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Our target
GeoVTag, a framework that adds trust information
on each message, so that a user can define how
trustworthy a given message is (according to his
trust relationships and his current context).
Pilot application :
FoxyTag : (http://foxytag.com) a free,
legal and collaborative system to
signal radars on mobile phones
anywhere on the planet!
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Hovering information
(pa0,t0) (pa1,t1)
(pa4,t4)
(pa2,t2)
Hovering information (blue) will be capable
of moving from one location to another
(from pa0 to pa4) jumping across the
intermediate physical devices (pink)
(pa3,t3)
(pa0,t0)
(pb0,t0)
Hovering information (blue) will be linked
to a location and optionally time stamped
(pa0,ta). Physically, this information will
reside in neighbouring devices (pink)
In the absence of fixed infrastructure,
hovering information will use all devices
in its neighbourhood such as phones,
RFIDS, sensors, PDAs, laptops, PCs, etc
Hovering information
Mobile device / user
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Hovering Information
Hovering Information features:
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Linked to a geographical location - Hovering
autonomously from one mobile device to
another
Moving from a geographical location to another
Existence of its own once created
Existence in a dynamic distributed
heterogonous environment with no centralized
servers
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