2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks (2008)
Newport Beach, CA, USA
June 23, 2008 to June 26, 2008
Hans L. Cycon , FHTW Berlin, 10318 Berlin, Germany
Thomas C. Schmidt , HAW Hamburg, Dept. Informatik, Berliner Tor 7, Germany
Gabriel Hege , HAW Hamburg, Dept. Informatik, Berliner Tor 7, Germany
Matthias Waahlisch , HAW Hamburg, Dept. Informatik, Berliner Tor 7, Germany
Detlev Marpe , Heinrich-Hertz-Institut, Image Proc. Dept., Einsteinufer 37, 10587 Berlin, Germany
Mark Palkow , daViKo GmbH, Am Borsigturm 40, 13507 Berlin, Germany
A rapidly growing number of carriers offer wireless video services to their customers, taking advantage of high quality video codecs implemented in dedicated hardware of selected mobile devices. In this paper we introduce a video conferencing software, which seamlessly integrates mobile with stationary users in a provider and device independent fashion. Innovations of this work are twofold. At first we report on a mobile realization of an H.264 video codec and its performance on a standard consumer Smartphone. Operating within the tight bounds of real-time compliance on mobiles, this software is an adapted version of a highly optimized H.264 codec. This DAVC codec, which we introduce along the line, significantly out-performs compatible H.264 realizations and allows for a scalable adaptation of its frame rate. In the second part we present a barrier-resistant peer-to-peer group communication scheme, which scales well for medium-size conferences and accounts for the heterogeneous nature of mobile and stationary participants. An outlook on mobility related group communication issues and future optimizations based on structured communication layers concludes the work.
D. Marpe, G. Hege, M. Palkow, H. L. Cycon, M. Waahlisch and T. C. Schmidt, "Peer-to-peer videoconferencing with H.264 software codec for mobiles," 2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks(WOWMOM), Newport Beach, CA, USA, 2008, pp. 1-6.