Browse > Article
http://dx.doi.org/10.9708/jksci.2011.16.9.123

A New Distributed Conference Architecture using Resource Lists  

Jang, Choon-Seo (Dept. of Computer Engineering, Kumoh. Inst. of Tech.)
Lee, Ky-Soo (Dept. of Computer Engineering, Kumoh. Inst. of Tech.)
Abstract
In this paper, We have proposed a new distributed conference architecture which can reduce largely SIP(Session Initiation Protocol) messages exchanged between servers and participants in distributed conference environment by using resource lists which consist of conference participants URIs. This architecture can also reduce processing time and loads of conference servers. In our proposed method, the number of SIP messages required for participating in the conference can be largely reduced, and the number of SIP messages required for subscription of conference event package and maintaining sessions can also be largely reduced by using resource lists. Therefore expandibility of the conference system increases and network traffic can be reduced by using our conference architecture. And We also have proposed in this paper a new conference information data format with some added elements that are necessary for processing resource lists. Furthermore the procedure for dynamically adding conference servers to the conference environment has been suggested, and the exchanging process of SIP messages and conference information data between conference servers and conference participants has been also suggested. The performance of our proposed system has been evaluated by experiments.
Keywords
Session Initiation Protocol; Distributed Conference; Resource Lists;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 G. Camarillo, et al., "Conference Event Package Data Format Extension for Centralized Conferencing," Internet-draft, September 2008.
2 Y. H. Cho, M. S. Jeong, "Policy-based distributed management architecture for large-scale enterprise conferencing service using SIP," IEEE Journal on Communications, pp.1934-1949, Oct. 2005.
3 J. Rosenberg, H. Schulzrinne and O. Levin, " A Session Initiation Protocol (SIP) Event Package for Conference State," RFC 4575, Augist 2006.
4 Y. Cho et al., "Distributed management architecture for multimedia conferencing using SIP," Int. Conf. DFMA, pp.98-105, Feb. 2006.
5 J. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley and E. Schooler, "Session Initiation Protocol," RFC 3261, June 2002.
6 C. S Jang , H. K. Cho, K. S. Lee, "A Method of Efficient Conference Event Package Processing in Distributed Conference Environment" Journal of The Korea Society of Computer and Information, Vol 13, No.7, pp 199-205, Dec. 2008.
7 C. S Jang , H. K. Cho, K. S. Lee, "A Method of Efficient SIPMessages Processing for Conference Focus" Journal of The Korea Society of Computer and Information, Vol. 12, No. 6, pp. 187-192, Dec. 2007.
8 H. Schulzrinne, S. Casner, R. Frederick and V. Jacobson, "RTP: A Transport Protocol for Real-Time Applications," RFC 3550, July 2005.
9 M. Barnes, C. Boulto and O. Levin, "A Framework for Centralized Conferencing," RFC 5239, June. 2008.
10 J. Rosenberg, "A Framework for Conferencing with the Session Initiation Protocol (SIP)," RFC 4353, Feb. 2006.