Full Text:   <3025>

Summary:  <1853>

CLC number: TP393; TN919.8

On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

Crosschecked: 2016-06-25

Cited: 1

Clicked: 7107

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

En-zhong Yang

http://orcid.org/0000-0001-7592-7319

-   Go to

Article info.
Open peer comments

Frontiers of Information Technology & Electronic Engineering  2016 Vol.17 No.7 P.672-681

http://doi.org/10.1631/FITEE.1601087


A video conferencing system based on SDN-enabled SVC multicast


Author(s):  En-zhong Yang, Lin-kai Zhang, Zhen Yao, Jian Yang

Affiliation(s):  School of Information Science and Technology, University of Science and Technology of China, Hefei 230001, China

Corresponding email(s):   ezhyang@mail.ustc.edu.cn, pkpk8@mail.ustc.edu.cn, yaozhen1@mail.ustc.edu.cn, jianyang@ustc.edu.cn

Key Words:  Software-defined networking (SDN), Multicast, Scalable video coding, Video conferencing system


En-zhong Yang, Lin-kai Zhang, Zhen Yao, Jian Yang. A video conferencing system based on SDN-enabled SVC multicast[J]. Frontiers of Information Technology & Electronic Engineering, 2016, 17(7): 672-681.

@article{title="A video conferencing system based on SDN-enabled SVC multicast",
author="En-zhong Yang, Lin-kai Zhang, Zhen Yao, Jian Yang",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="17",
number="7",
pages="672-681",
year="2016",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.1601087"
}

%0 Journal Article
%T A video conferencing system based on SDN-enabled SVC multicast
%A En-zhong Yang
%A Lin-kai Zhang
%A Zhen Yao
%A Jian Yang
%J Frontiers of Information Technology & Electronic Engineering
%V 17
%N 7
%P 672-681
%@ 2095-9184
%D 2016
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.1601087

TY - JOUR
T1 - A video conferencing system based on SDN-enabled SVC multicast
A1 - En-zhong Yang
A1 - Lin-kai Zhang
A1 - Zhen Yao
A1 - Jian Yang
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 17
IS - 7
SP - 672
EP - 681
%@ 2095-9184
Y1 - 2016
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.1601087


Abstract: 
Current typical video conferencing connection is bridged by a multipoint control unit (MCU), which may cause large delay and communication bottleneck for the whole system. With the development of network technology, a video conferencing system can be implemented based on software-defined networking (SDN), which makes the service controllable and improves the scalability and flexibility. Additionally, a video encoding method called scalable video coding (SVC) can also help. In this paper, we propose a video conferencing architecture based on SDN-enabled SVC multicasting, which discards the traditional Internet group management protocol (IGMP) and MCU. The system implements SVC multicast streaming to satisfy different device capabilities of various conference terminals. The SDN controller is responsible for dynamically managing and controlling the layers of a video stream when a conference member faces network congestion. Also, a conference manager is designed to facilitate the management of the conference members. Experimental results show that our system can not only provide a flexible and controllable video delivery, but also reduce the network usage while guaranteeing the quality of service (QoS) of video conferencing.

软件定义网络中采用可伸缩视频组播的视频会议系统

目的:在软件定义网络中,基于可伸缩视频编码技术,采用组播的传输方式,设计实现视频会议系统。该系统在节省网络带宽资源的同时,可以实现网络内部的视频码率自适应调节,从而避免网络拥塞,达到提高视频会议参与者用户体验的目的。
创新点:我们设计了在软件定义网络中采用分层组播思想的视频会议系统。该系统摒弃了当前典型视频会议系统中的多点控制单元(MCU),采用全新的架构,从而可以根据异构的终端能力、网络的链路状态,对与会者进行差异服务,提高服务质量。
方法:本文目标是能够在节省带宽、降低时延和保证服务质量的前提下,构建一个稳定全新的视频会议系统。摒弃当前典型视频会议系统的MCU,提出了全新的服务架构(图2)。系统可分为四部分功能实体:会议管理服务器,SDN网络控制器,OpenFlow交换机和会议终端(图3)。采用模块化设计思想,在会议管理服务器中,集成了组管理、信息管理和接入控制等模块;在网络控制器中,集成了拓扑管理、QoS管理和路由管理等模块。各功能实体和模块相互协作,为参会者提供视频会议服务。我们搭建了一个试验床来测试系统:首先测试了网络带宽的使用量和服务时延(图6),之后测试了网络内部SVC视频层数自适应调节的性能(图7、8)。实验结果表明:相比于基于MCU的视频会议系统和SDN单层视频组播视频会议系统,本文提出的系统性能更优。
结论:采用基于SDN的SVC视频组播技术来构建视频会议系统。所构建的系统可以根据异构的终端能力、网络的链路状态,对与会者进行差异服务并实现网络内部的视频层数动态调节,从而避免网络拥塞,提高服务质量。

关键词:软件定义网络;组播;可伸缩视频;视频会议系统

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1]Avaya, 2016. Scalable Video Coding Algorithm. Available from http://docs.radvision.com/ [Accessed on Feb. 25, 2016].

[2]Civanlar, S., Parlakisik, M., Tekalp, A.M., et al., 2010. A QoS-enabled OpenFlow environment for scalable video streaming. IEEE Globecom Workshops, p.351-356.

[3]Drutskoy, D., Keller, E., Rexford, J., 2013. Scalable network virtualization in software-defined networks. IEEE Internet Comput., 17(2):20-27.

[4]Egilmez, H.E., Civanlar, S., Tekalp, A.M., 2013. An optimization framework for QoS-enabled adaptive video streaming over OpenFlow networks. IEEE Trans. Multim., 15(3):710-715.

[5]Feng, H.E., Wu, W.J., 2012. Framework and user migration strategy of cloud-based video conference multi-gateway system. 19th Int. Conf. on High Performance Computing, p.1-8.

[6]Fenner, W.C., 1997. Internet Group Management Protocol, Version 2, FRC 2336. Internet Engineering Task Force, Fremont.

[7]Li, X., Ammar, M.H., Paul, S., 1999. Video multicast over the Internet. IEEE Netw., 13(2):46-60.

[8]McCanne, S., Jacobson, V., Vetterli, M., 1996. Receiver-driven layered multicast. ACM SIGCOMM Comput. Commun. Rev., 26(4):117-130.

[9]McKeown, N., Anderson, T., Balakrishnan, H., et al., 2008. OpenFlow: enabling innovation in campus networks. ACM SIGCOMM Comput. Commun. Rev., 38(2):69-74.

[10]Ng, K.F., Ching, M.Y., Liu, Y., et al., 2014. A P2P-MCU approach to multi-party video conference with WebRTC. Int. J. Fut. Comput. Commun., 3(5):319-324.

[11]Open Networking Lab, 2015. POX Wiki. Available from http://openflow.stanford.edu/display/ONL/POX+Wiki [Accessed on Sep. 22, 2015].

[12]OpenWrt Developer Team, 2015. OpenWrt Project. Available from https://www.openwrt.org/ [Accessed on Aug. 15, 2015].

[13]Polycom, 2014. SVC-Based Conferencing Solutions Deployment Guide. Available from http://support.polycom.com/global/documents/support/user/products/network/RMX_SVC_Deployment_Guide_V8_3.pdf [Accessed on Jan. 18, 2016].

[14]Qiu, R.B., Kuhns, F., Cox, J.R., 2002. A conference control protocol for highly interactive video-conferencing. IEEE Global Telecommunications Conf., p.2021-2025.

[15]Schwarz, H., Marpe, D., Wiegand, T., 2007. Overview of the scalable video coding extension of the H.264/AVC standard. IEEE Trans. Circ. Syst. Video Technol., 17(9):1103-1120.

[16]Sezer, S., Scott-Hayward, S., Chouhan, P.K., et al., 2013. Are we ready for SDN? Implementation challenges for software-defined networks. IEEE Commun. Mag., 51(7):36-43.

[17]Srivats, P., 2010. Ostinato—Network Traffic Generator and Analyzer. Available from http://www.ostinato.org/ [Accessed on Jan. 12, 2015].

[18]Willebeek-LeMair, M.H., Kandlur, D.D., Shae, Z.Y., 1994. On multipoint control units for videoconferencing. Proc. 19th Conf. on Local Computer Networks, p.356-364.

[19]Zhang, S.P., Niu, D., Hu, Y.C., et al., 2014. Server selection and topology control for multi-party video conferences. Proc. Network and Operating System Support on Digital Audio and Video Workshop, p.43-48.

[20]Zhang, Z.C., Li, V.O.K., 2002. Router-assisted layered multicast. IEEE Int. Conf. on Communications, p.2657-2661.

[21]Zhao, M., Jia, B., Wu, M.Q., et al., 2014. Software defined network-enabled multicast for multi-party video conferencing systems. IEEE Int. Conf. on Communications, p.1729-1735.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - 2024 Journal of Zhejiang University-SCIENCE