Research Article
Improving the Efficiency of WebRTC Layered Simulcast Using Software Defined Networking
@INPROCEEDINGS{10.1007/978-3-031-40467-2_2, author={Agnieszka Chodorek and Robert R. Chodorek and Krzysztof Wajda}, title={Improving the Efficiency of WebRTC Layered Simulcast Using Software Defined Networking}, proceedings={Broadband Communications, Networks, and Systems. 13th EAI International Conference, BROADNETS 2022, Virtual Event, March 12-13, 2023 Proceedings}, proceedings_a={BROADNETS}, year={2023}, month={7}, keywords={WebRTC Software Defined Networking OpenFlow system Quality of Service}, doi={10.1007/978-3-031-40467-2_2} }- Agnieszka Chodorek
Robert R. Chodorek
Krzysztof Wajda
Year: 2023
Improving the Efficiency of WebRTC Layered Simulcast Using Software Defined Networking
BROADNETS
Springer
DOI: 10.1007/978-3-031-40467-2_2
Abstract
This study proposes a conference bridge that cooperates with both the WebRTC layered simulcast and the Software Defined Networking architecture in order to improve WebRTC video streaming. The proposed bridge divides the functionality of a classic Selective Forwarding Unit into two parts. The selection of layers is performed by the SDN controller and the forwarding of layered video is still accomplished by the bridge. The bridge and the SDN controller exchange data on the state of the transmitted video stream and the state of the network. The proposed solution was implemented in the Jitsi Videobridge and tested in the GEANT testbed network. The results showed that our solution significantly reduces problems related to available throughput overshooting, which is typical for layered simulcast.
