Title: Next generation networks with multiple access technologies

Time and room: 26.09.2007, 11Uhr ct., Sternwarte seminar room (Geismarlandstr. 11)

Abstract:
Communication in next generation networks will use multiple access technologies, creating a heterogeneous network environment. To enable end-user terminals to move between access networks with minimal disruption, the terminals should be able to maintain multiple active network connections. Such a multihomed mobile host will experience different capabilities and coverage area depending on the access technologies. This presentation proposes and evaluates an extension to Mobile IPv6 enabling multihoming, regardless of the access technology.
Mobility of multimedia communication in this environment should adapt to changing conditions and be based on dynamic measurements and user preferences. The proposed architecture gives opportunities for mobile multimedia applications to use multiple access networks simultaneously and the possibility to move individual flows. Media flows are identified by destination IP address, protocol and port number. Results from a real world prototype are presented using three different wireless access technologies: 802.11, UMTS and 802.16-2004.

Speaker's short biography:
Dr. Christer Ã…hlund received his MSc in Computer Science from Uppsala University and his PhD from Lulea University of Technology (LTU). Christer is currently head of division for Mobile Networking and Computing at LTU Skelleftea. His research is about IP mobility, ad-hoc networks, heterogeneous access networks and media distribution. He has been working in the Industry for 10 years in extensive software projects as a programmer, system engineer and project manager.

Christer also holds an adjunct professor position at Sherbrooke University. Christer has participated in several international projects funded by EU, the national authority in Sweden as well as Industrial funding. Christer is also working part time in the telecommunication industry.