NDLI: Peer-to-peer videoconferencing with H.264 software codec for mobiles

Content Provider	IEEE Xplore Digital Library
Author	Cycon, H.L. Schmidt, T.C. Hege, G. Wahlisch, M. Marpe, D. Palkow, M.
Copyright Year	2008
Description	Author affiliation: FHTW Berlin, Berlin (Cycon, H.L.)
Abstract	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.
Starting Page	1
Ending Page	6
File Size	2455696
Page Count	6
File Format	PDF
ISBN	9781424420995
DOI	10.1109/WOWMOM.2008.4594916
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Peer to peer computing peer-to-peer group communication distributed SIP conference management Streaming media Mobile communication Routing Software Encoding mobile conferencing Mobile video coding
Content Type	Text
Resource Type	Article

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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