Tournoux, Pierre-Ugo and Bouabdallah, Amine and Lacan, Jérôme and Lochin, Emmanuel On-the-Fly Coding for Real-Time Applications. (2009) In: Association for Computing Machinery (ACM) Multimedia 2009 System Track, 19-23 Oct 2009, Beijing, China .
|(Document in English) |
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Official URL: http://doi.acm.org/10.1145/1631272.1631440
Although ironically it does not offer any real-time guarantee, Internet is a popular solution to support multimedia time-constrained applications (e.g. VoIP, Video Conferencing, ...). Following this trend, this paper focuses on the performance of these applications by studying the benefit of using a novel reliability concept which aims at signifi- cantly improving the performance of these time constrained applications over lossy best-effort networks. This reliability mechanism emerged from several recent works from both network and coding theories. Its principle is to integrate feedbacks in an on-the fly coding scheme in order to optimize the trade-off ”packet decoding delay” vs ”throughput”. We present the first evaluations of this mechanism for VoIP and video-conferencing applications for various erasure channels. Compared to classic block-based erasure codes, the results show significant gains in terms of quality observed by the user for both applications.
|Item Type:||Conference or Workshop Item (Paper)|
|Additional Information:||Thanks to Association for Computing Machinery(ACM). The original PDF can be found on the ACM website: http://doi.acm.org/10.1145/1631272.1631440|
|Audience (conference):||International conference proceedings|
|Institution:|| Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE|
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratoire d'Analyse et d'Architecture des Systèmes - LAAS (Toulouse, France) - Outils Logiciels pour la Communication - OLC
Département de Mathématiques, Informatique, Automatique - DMIA (Toulouse, France) - Modelisation et Architecture des Systèmes - MARS
|Total amount of citations (from ISI Web of Science):||1|
|Deposited By:||Emmanuel Lochin|
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