NDLI: A distributed multimedia conferencing based on SIP

Content Provider	IEEE Xplore Digital Library
Author	Junchao Li Ruifeng Guo Xiuwu Zhang
Copyright Year	2010
Description	Author affiliation: School of Computer Science and Technology, University of Science and Technology of China, Hefei, China (Junchao Li; Xiuwu Zhang) \|\| Shenyang Institute of Computing Technology, Chinese Academy of Sciences, Shenyang, China (Ruifeng Guo)
Abstract	Technology of multimedia communications on network is rapidly developing today. SIP (Session Initiation Protocol), which plays an important role in 3G standards, is well applied in multimedia conferencing systems. Traditionally, most SIP-based conferencing systems have been limited in scalability due to their tightly coupled centralized structures. However, distributed conferencing based on SIP is still in the theory phase. The goal of this paper is to take out a practicable solution that can meet the requirement of large scale multi-party communications. We analyze the drawbacks of existing conferencing models, and design a more practical distributed architecture for a large scale conferencing service. For high scalability, coordinated processors are settled in different areas to maintain conferences, and associated mixers are located for media treatment. There are some high speed corresponding channels among processors in different networks for communication and synchronization. We also propose a backup system to keep up meetings when an abrupt breakdown occurs on some server.
Starting Page	371
Ending Page	376
File Size	3696477
Page Count	6
File Format	PDF
ISBN	9781424454273
ISSN	17389445
e-ISBN	9781424454280
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-02-07
Publisher Place	Korea (South)
Access Restriction	Subscribed
Rights Holder	Electronics and Telecommunications Research Institute
Subject Keyword	Multimedia systems Network servers Protocols Scalability Large-scale systems Multimedia computing Web and internet services Communications technology Multimedia communication Electric breakdown SIP multimedia conferencing distributed architecture backup system
Content Type	Text
Resource Type	Article

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