SVC Videoconferencing Call Adaptation and Bandwidth Usage in SDN Networks

Christelle Al Hasrouty (1) , Cristian Olariu (2) , Vincent Autefage (1) , Damien Magoni (1) , John Murphy (2)

1 LaBRI - Laboratoire Bordelais de Recherche en Informatique
2 PEL - Performance Engineering Laboratory

Videoconferencing is a convenient way for meeting with people while avoiding transportation costs. With cameras now being a commodity feature on every laptop and smartphone, videoconferencing can be delivered by many software applications .However, live video streams have strong latency requirements and consume much bandwidth. Furthermore, videocon-ferencing is not efficiently implemented in current applications as it often relies on a central server and does not leverage network layer services. With the advent of Software Defined Networking, it is now possible to use advanced techniques such as multicasting and stream layering inside the network for optimizing live video call transmission. In this paper, we investigate the impact of these techniques on the bandwidth and latency of Scalable Video Coding videoconference calls. We also evaluate the call capacity of software defined networks using such techniques.

Domaines: Réseaux et télécommunications [cs.NI]

Christelle Al Hasrouty, Cristian Olariu, Vincent Autefage, Damien Magoni, John Murphy. SVC Videoconferencing Call Adaptation and Bandwidth Usage in SDN Networks. IEEE Global Communications Conference, Dec 2017, Singapore, Singapore. ⟨hal-01508128v2⟩