Title: Video-based e-learning in groups: combining SIP and multicast in a mobile learning internet infrastructure

Authors: Hans L. Cycon, Henrik Regensburg, Thomas C. Schmidt, Matthias Wahlisch, Mark Palkow

Addresses: FB 1, FHTW Berlin, University of Applied Sciences, Allee der Kosmonauten 20-22, 10315 Berlin, Germany. ' FB 1, FHTW Berlin, University of Applied Sciences, Allee der Kosmonauten 20-22, 10315 Berlin, Germany. ' Deptartment Informatik, HAW Hamburg, University of Applied Sciences, Berliner Tor 7, 20099 Hamburg, Germany. ' Deptartment Informatik, HAW Hamburg, University of Applied Sciences, Berliner Tor 7, 20099 Hamburg, Germany. ' daViKo GmbH, Am Borsigturm 40, 13507 Berlin, Germany

Abstract: Rich multimedia communication in groups is the instrument of choice in various e-learning situations and is best achieved by videoconferencing, supplemented by collaborative tools. In this paper, we report on various distributed synchronous and asynchronous video-based teaching and learning scenarios using stationary and mobile technologies over IP. They are realised by a multimedia communication system including a VideoConferencing over IP (VCoIP) software with hybrid architecture derived from a SIP-initiated P2P model. The system is based on a fast, highly efficient H.264/AVC video codec implementation. We investigate new concepts for nomadic IPv6 user and session mobility, focussing on real-time group communication.

Keywords: videoconferencing; multimedia group conferencing; synchronous e-learning; mobile multicast; SIP-based P2P communication; peer-to-peer; online learning; mobile learning; m-learning; internet infrastructure; VCoIP; video; IPv6; real-time communication.

DOI: 10.1504/IJMLO.2008.020686

International Journal of Mobile Learning and Organisation, 2008 Vol.2 No.4, pp.329 - 345

Published online: 10 Oct 2008 *

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