Transcript Computer Science Teaching and Research

Computer Networking Research at
Karlstad University
Anna Brunström
Karlstad University
Computer Science
Research Organization
• Dept. of Computer Science, Research Groups
– DISCO – Distributed Systems and Communications
Group
– PriSec – Privacy and Security Group
• Multidisciplinary University Platforms
– CMIT
• Communication: Media and information technology
– HumanIT
• Human value of IT
• Research on mobile communication, multimedia
Karlstad University
Computer Science
DISCO: People
• Research Manager
– Assoc. Prof. Anna Brunström
• Ph.D. Students
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Stefan Alfredsson
Katarina Asplund,
Johan Garcia
Karl-Johan Grinnemo (Tieto Enator)
Hannes Persson
Annika Wennström
• Project Employee
– Torbjörn Andersson
Karlstad University
Computer Science
DISCO: Projects
• SCTP for soft real-time applications
– Funding/Partners
• Tieto Enator AB (Karl-Johan Grinnemo)
• Continuation of 4 year cooperation
• Part of CMIT platform
– Consequences of SIGTRAN on transport performance
• Performance of M3UA Failover Mechanisms
• See presentation by Karl-Johan Grinnemo
– General performance evaluation of SCTP
– Partial Reliability in SCTP
• Builds on previous work on partial reliability: PRTP, PRTP-ECN,
Robust JPEG coder
Karlstad University
Computer Science
DISCO: Projects cont.
• Protocol support for mobile environments
– Funding/Partners
• Telia Mobile AB (Jan Gustafsson, Jonas Eriksson)
• Dr. Juan Rendon, UPF, Spain
• Part of CMIT platform
– Measurements of TCP over GPRS
– GPRS testbed
• Real nodes and protocol implementations
• Emulated radio environment
– See presentation by Annika Wennström
Karlstad University
Computer Science
DISCO: Projects cont.
• Wireless IP
– Funding/Partners
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SSF
Uppsala University (Anders Ahlén, Mikael Sternad)
Chalmer (Arne Svensson, Tony Ottosson, Mats Viberg)
Saverio Mascolo, Bari, Italy, Torbjörn Ekman, Unik, Norway, Ericsson,
NERA
– A flexible, low-cost general packet data system allowing wide
area coverage and high mobility (vehicular velocities)
• 100 Mbit/s Ethernet, high spectral efficiency, QoS and fairness
– Leads to an extreme system based on adaptive resource
allocation
Karlstad University
Computer Science
DISCO: Projects cont.
• Providing Optimum Capacity and Flexible Quality of Service
in Packet-based Wireless Systems Using Scheduling and Soft
Information
– Funding/Partners
• Vinnova
• Uppsala University (Anders Ahlén, Mikael Sternad)
• Chalmer (Tony Ottosson)
– Related to Wireless IP project
– Develop means to propagate soft information from the physical
layer to the application
• JPEG 2000 decoder that utalizes soft information
• TCP-L, protocol that lets biterrors through
– Develop efficient scheduling algorithms among multiple access
points
Karlstad University
Computer Science
DISCO: Projects cont.
• EU FP6 projects
– WINNER Wireless World Initiative New Radio
• Integrated Project
• Wireless IP partner with Chalmers as main contact
• Coordinator: Dr. Werner Mohr, Siemens AG
– NEWCOM Network of Excellence in Wireless
Communications
• Network of Excellence
• Coordinator: Prof. Sergio Benedetto, Istituto Superiore
Mario Boella, Italy
Karlstad University
Computer Science
DISCO: Projects cont.
• Other Activities
– Transport Layer Loss Differentiation and Loss
Notification
• Distinguish the cause of a packet loss
• Inform transport sender of cause: explicitly or implicitly
• See presentation by Johan Garcia
– Measurement Techniques
• Impact of the position for packet loss
• Time-driven versus data-driven biterrors
Karlstad University
Computer Science
PriSec: People
• Research Manager
– Prof. Simone Fischer Hübner
• Researcher
– Dr. Thijs Holleboom
• Ph.D. Students
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Christer Andersson
Stefan Lindskog
Reine Lundin
Albin Zuccato
Karlstad University
Computer Science
PriSec: Projects cont.
• Privacy enhancement in Mobile Internet
– Funding/Partners
• HumanIT
• Ericsson
– Evaluation of privacy risks, especially those generated by the
use of location data and user device specific CPI profiles
– Minimal Profile Conveyance concept for conveying only
minimal CPI profiles to non P3P-compliant, non P3P-enabled
web sites or Push initiators
– Development of browser built-in and a proxy-based P3P user
agent for mobile Internet
Karlstad University
Computer Science
PriSec: Projects cont.
• Privacy enhancing technologies in the next
generation Internet
– Funding/Partners
• SCINT
• KTH/IMIT
– Investigate the privacy threats in IPv6
– Analyzed how Mix net technologies can take
advantage of the IPv6 architecture
– The use of P3P in IPv6 networks
– Impact of proposal on lawful access to traffic data
Karlstad University
Computer Science
PriSec: Projects cont.
• Dynamic Security Solutions for Networked
Applications
– Funding/Partners
• Vinnova funding decision pending
• Chalmers (Erland Jonsson)
• Part of CMIT
– Develop suitable security metrics for measuring and
comparing the levels of various security parameters
– Define, design, and implement more flexible and
configurable security solutions that are based on a
paradigm that allowsfor partial security.
Karlstad University
Computer Science
PriSec: Projects cont.
• EU FP6 projects
– PRIME Privacy and Identity Management for Europe
• Integrated Project
• Coordinator: Gérard Lacoste, IBM France
– FIDIS Future of Identity in the Information Society
• Network of Excellence
• Coordinator: Prof. Kai Rannenberg, Goethe University
Frankfurt
Karlstad University
Computer Science
Thank you for your attention!
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Karlstad University
Computer Science