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Communication Dans Un Congrès Année : 2016

SDN-Driven Multicast Streams with Adaptive Bitrates for VoIP Conferences

Résumé

Achieving high-quality voice conference calls over the Internet is a difficult task. Heterogeneous mobile devices and network dynamics must be properly managed by multiparty VoIP systems to ensure a good quality of experience. In this paper, we propose a multiparty VoIP system based on SDN technology that uses both multicast distribution and dynamic stream adaptation to optimize the conference call quality for each participant. We define a tree construction algorithm that includes two modes: a minimum spanning tree mode and a shortest path tree mode. We have simulated conference calls with various parameters and results show that a trade-off can be achieved between path latency and bandwidth consumption when using multicasted streams with adaptive bitrates. Compared to a typical multiparty VoIP system, up to two-third bandwidth consumption reduction is possible with only a small increase of the average path latency. Our solution could be leveraged by other types of real-time applications such as online gaming.
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Dates et versions

hal-01281878 , version 1 (02-03-2016)

Identifiants

Citer

Christelle Al Hasrouty, Vincent Autefage, Cristian Olariu, Damien Magoni, John Murphy. SDN-Driven Multicast Streams with Adaptive Bitrates for VoIP Conferences. IEEE International Conference on Communications, May 2016, Kuala Lumpur, Malaysia. ⟨10.1109/ICC.2016.7511135⟩. ⟨hal-01281878⟩

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