Design and Optimization considerations for real-time video conferencing using IMS in 4G/LTE Networks
Abstract
IP Multimedia Subsystem (IMS) offers a plethora of functionalities in 4G/LTE networks. One such functionality is the video conference where three or more User Equipments (UEs) communicate with each other using VoLTE. This research paper presents optimizations in the design and implementation of an IMS video conference server for reducing the video display delay and improving the performance thereof. Both application as well as network level parameters are found to impact the video display delay at the UE, hence performance improvement of both are considered in this paper. Optimization techniques adopted in this implementation resulted in enhanced performance of video conference calls over the LTE network.
References
[2] Shih-Wen Hsu, Chi-Yuan Chen, Kai-Di Chang, Han-Chieh Chao, and Jiann-Liang Chen, ”Towards Service-oriented Cognitive Networks over IP Multimedia Subsystems, ” The 17th IEEE International Conference on Parallel and Distributed Systems (ICPADS 2011), Tainan, Taiwan, December 7-9, 2011.
[3] Tien Anh Le, Hang Nguyen, Noel Crespi, “IMS-based distributed multimedia conferencing service for LTE” in 2012 IEEE Wireless Communications and Networking Conference (WCNC).
[4] Weiwei Lai, Jian Guo, Yuliang Tang, “The design of multimedia conference system based on IMS” in 2011 IEEE 3rd International Conference on Communication Software and Networks.
[5] Wagdy A. Aziz, Salwa H. Elramly, Magdy M. Ibrahim, “VoIP Quality Optimization in IP-Multimedia Subsystem (IMS)” in 2010 Second International Conference on Computational Intelligence, Modelling and Simulation.
[6] Gstreamer open source multimedia framework. https://gstreamer.freedesktop.org/
[7] RFC 6184 - RTP Payload Format for H.264 Video - Parameter Set
Considerations. https://datatracker.ietf.org/doc/html/rfc6184
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