@ University of Bern

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

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Computer Networks & Distributed Systems
@ University of Bern

Torsten Braun

Institute of Computer Science and Applied Mathematics

Universität Bern

braun@iam.unibe.ch


September 12, 2006

Torsten Braun: Computer Networks & Distributed Systems @ University of Bern

2

University of Bern

>
12‘000 students

>
Main faculties


Law


Economics and Social Sciences


Medicine


Humanities


Human Sciences


Science (1950 students)


Computer Science (230 + 170 students)


Mathematics


Physics


Chemistry


Geo Sciences


Biology

September 12, 2006

Torsten Braun: Computer Networks & Distributed Systems @ University of Bern

3

IAM Research Groups

Computational Geometrie

and Graphics
(Bieri)

Theoretical Computer

Science and Logic
(Jäger)

Software Composition

(Nierstrasz)

Computer Networks and

Distributed Systems
(Braun)

Computer Visions and Artificial Intelligence
(Bunke)

September 12, 2006

Torsten Braun: Computer Networks & Distributed Systems @ University of Bern

4

Teaching

>
Bachelor Lectures


Computer Networks


Operating Systems

>
Master Lectures


Sensor Networks


Mobile Communications


Multimedia Communications

September 12, 2006

Torsten Braun: Computer Networks & Distributed Systems @ University of Bern

5

Research Topics

Multimedia

Communications


Overlay Networks / P2P


Multicast




Distance Learning


Security Architectures for

Distributed Laboratories


Content Production

Wireless Networks


Wireless Sensor Networks


Wireless Mesh Networks

MICS

September 12, 2006

Torsten Braun: Computer Networks & Distributed Systems @ University of Bern

6

E
-
Learning

>
Distance Learning: On
-
line lectures including practical exercises


VITELS (computer networks),
www.vitels.ch



OSlab (operating systems),
www.oslab.ch


>
Mobile Learning

September 12, 2006

Torsten Braun: Computer Networks & Distributed Systems @ University of Bern

7

Overlay Networks

>
Peer
-
to
-
Peer Multicast


IP Multicast applications over overlay networks (
www.euqos.org
)

>
Overlay Creation and Quality
-
of
-
Service (QoS)


End
-
to
-
End Distance / QoS estimation based on clustering


Construction of efficient overlay network structures

>
TBD: mobility

Internet

Overlay

connections

September 12, 2006

Torsten Braun: Computer Networks & Distributed Systems @ University of Bern

8

Wireless Mesh Networks

>
Configuration and Management of Wireless Mesh Networks (WMN)

>
Multi
-
Path Transmission of Multimedia Data over WMNs

Internet

Wireless Mesh Router

Base

station

End systems

September 12, 2006

Torsten Braun: Computer Networks & Distributed Systems @ University of Bern

9

Wireless Sensor Networks

>
Intensity
-
based Object Localization and Tracking

>
Implementation & Evaluation of Medium Access Control Protocols

>
Transport Protocols

>
Management

sink

Internet

sensor nodes

user

September 12, 2006

Torsten Braun: Computer Networks & Distributed Systems @ University of Bern

10

Related Research Interests

>
Mobile multimedia applications and communication systems

>
Multimedia applications and services in wireless mesh networks

>
Mobile Peer
-
to
-
Peer Systems

>
Management of wireless sensors and mesh nodes

>
Context
-
sensitive applications and location
-
based services

>
Sensor network applications and communication systems