ON PERFORMANCE OF APPLICATION TRIGGERING ARCHITECTURE IN IMS NETWORK

• Published in: Journal of electronics (China) Vol. 26; no. 1; pp. 128 - 137
• Main Authors: Xun, Zhaoyong, Liao, Jianxin, Wang, Chun, Wang, Yulong, Liu, Jie
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 2009; EBUPT Information Technology Co., Ltd., Beijing 100083, China%EBUPT Information Technology Co., Ltd., Beijing 100083, China; State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
• Subjects: Electrical Engineering; Engineering; 信号性能; 多媒体网络; 触发器结构; IP Multimedia Subsystem (IMS); Signaling performance; Session initiation protocol; Session setup delay; Application triggering architecture; TP393
• ISSN: 0217-9822; 1993-0615
• DOI: 10.1007/s11767-007-0167-0

The modeling of Application Triggering Architecture （ATA） in the IP Multimedia Sub- system （IMS） is presented. The session setup delay and system throughput are employed as the measurement to investigate the performance of ATA and the Serving Call Session Control Punction （S-CSCF）. With theoretical analysis and simulation results, we find that, the number of the ASs （Application Servers）, the use of the subsequent Filter Criteria （sFC） and the arrival rate have heavy impact on the session setup delay and the S-CSCF is the major bottleneck in IMS network. The results are useful in constructing IMS network. At last, we propose several possible solutions to reduce the session setup delay and decrease the load of the S-CSCF.