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 210kB |
Official URL: http://doi.acm.org/10.1145/1631272.1631440
Abstract
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 |
Uncontrolled Keywords: | |
Institution: | Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) |
Laboratory name: | 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 |
Statistics: | download |
Deposited On: | 25 Jan 2010 07:35 |
Repository Staff Only: item control page