A dynamic scalable service model for SIP-based video conference

Author

Yang, Zhen ; Ma, Huadong ; Zhang, Ji

Author_Institution

Sch. of Comput. Sci. & Technol., Beijing Univ. of Posts & Telecommun., China

Volume

1

fYear

2005

fDate

24-26 May 2005

Firstpage

594

Abstract

As an extensible signaling protocol, SIP (session initiation protocol) can be applied in developing video conference system. Traditionally, for SIP-based centralized video conference system, conferencing scale is limited by both the capability of conference server and the availability of bandwidth. The paper focuses on how to keep conferencing when the number of conference users increases. Based on the study of the SIP protocol, we analyze the drawback of the existing video conference model, and propose a dynamic scalable service model for SIP-based video conference. By this model, the extra service requests can be transferred and served in the cooperated conference servers. The paper presents the conferencing control policy of the model in detail. We developed a prototype of video conference system based on the above model. Experimental results show this service model works well.

Keywords

multimedia communication; protocols; teleconferencing; SIP-based video conference system; conferencing control policy; dynamic scalable service model; session initiation protocol; Computer architecture; IP networks; Internet; Prototypes; Scalability; Streaming media; Telecommunication computing; Transport protocols; Videoconference; Web server;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Supported Cooperative Work in Design, 2005. Proceedings of the Ninth International Conference on

Print_ISBN

1-84600-002-5

Type

conf

DOI

10.1109/CSCWD.2005.194239

Filename

1504146