Advanced Systems Group

Architecture and Services of Network Applications

Prof. Dimitri Konstantas http://asg.unige.ch

http://asna.ewi.utwente.nl/

-dimitri.konstantas@unige.ch

ASNA

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ASNAHistory : Mobile Health

Wireless Health Broker & Service Provider

Mobile Networks

Doctor

Vital Signs User data

Analysis & Content

Management

Hospital

Patient Feedback Loop in Real-Time

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M-health Results

for commercial use highly profit oriented pre-configured

Certification New features coming from

research

medical research non-profit oriented open system, dynamically

adaptable

No certification New, customized features

can be commercialized after validation

Research System Research System Commercial SystemCommercial System

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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

measurementsFrom the commercial point of view Transfer research results to commercial

product

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Research Subjects at ASG Quality of Service

How the application/user/service anticipate the available QoS of a wireless network?

Trust of spatial information Can we trust the spatial information coming from a

mobile device? Hovering Information

Can server free spatial information exist?

Research Subjects at ASG Mobile Health Context aware services and applications

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mobile game user

application

server

Internet2.5G / 3G / WLAN /…2.5G / 3G / WLAN /…

Mobile OperatorNetwork

EnterpriseNetwork

Development of E2E QoS-forecast serviceTowards QoS-and context-aware mobile applications

Goal: to know and adapt to the forecasted E2E QoS

E2E QoS

forecast service

log / request E2E QoS info

Problem: no guarantees + no knowledge on E2E QoS

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E2E QoS depends on:• user location, time and mobility level • mobile operator, wireless technology•…other user-context …

working daylunch-timeweekend day

lunch-time

Forecasted E2E QoS !

Development of E2E QoS-forecast serviceTowards QoS- and context-aware mobile applications

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Trust and Security in Spatial Messaging Problem

Spatial messaging has little success because the lack of a trust mechanism prevents lots of serious applications.

Our targetGeoVTag, 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)

(pb0,t0)

(pa2,t2)(pa0,t0)

(pa1,t1)

(pa4,t4) (pa3,t3)

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 (blue) will be linked to a location and optionally time stamped (pa0,ta). Physically, this information will reside in neighbouring devices (pink)

Hovering information (blue) will be capable of moving from one location to another (from pa0 to pa4) jumping across the intermediate physical devices (pink)

Hovering information

Mobile device / user

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Hovering Information

Hovering Information features: 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