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Computer Networks & Distributed Systems @ University of Bern Torsten Braun Institute of Computer Science and Applied Mathematics Universitt Bern braun@iam.unibe.ch Slide 2 September 12, 2006 Torsten Braun: Computer Networks & Distributed Systems @ University of Bern 2 University of Bern 12000 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 Slide 3 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 (Jger) Software Composition (Nierstrasz) Computer Networks and Distributed Systems (Braun) Computer Visions and Artificial Intelligence (Bunke) Slide 4 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 Slide 5 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 Slide 6 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.chwww.vitels.ch OSlab (operating systems), www.oslab.chwww.oslab.ch Mobile Learning Slide 7 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)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 Slide 8 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 Slide 9 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 Slide 10 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