A linear chained approach for service invocation in IP multimedia subsystem.

Li, Tonghong and Liao, Jianxin and Qi, Qi and Xun, Zhaoyong and Cao, Yufei and Wang, Jingyu (2012). A linear chained approach for service invocation in IP multimedia subsystem.. "Computers & Electical Engineering.", v. 38 (n. 4); pp. 840-852. ISSN 0045-7906. https://doi.org/10.1016/j.compeleceng.2012.03.010.

Description

Title: A linear chained approach for service invocation in IP multimedia subsystem.
Author/s:
  • Li, Tonghong
  • Liao, Jianxin
  • Qi, Qi
  • Xun, Zhaoyong
  • Cao, Yufei
  • Wang, Jingyu
Item Type: Article
Título de Revista/Publicación: Computers & Electical Engineering.
Date: July 2012
ISSN: 0045-7906
Volume: 38
Subjects:
Faculty: Facultad de Informática (UPM)
Department: Lenguajes y Sistemas Informáticos e Ingeniería del Software
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

IP Multimedia Subsystem (IMS) is considered to provide multimedia services to users through an IP-based control plane. The current IMS service invocation mechanism, however, requires the Serving-Call Session Control Function (S-CSCF) invokes each Application Server (AS) sequentially to perform service subscription pro?le, which results in the heavy load of the S-CSCF and the long session set-up delay. To solve this issue, this paper proposes a linear chained service invocation mechanism to invoke each AS consecutively. By checking all the initial Filter Criteria (iFC) one-time and adding the addresses of all involved ASs to the ?Route? header, this new approach enables multiple services to be invoked as a linear chain during a session. We model the service invocation mechanisms through Jackson networks, which are validated through simulations. The analytic results verify that the linear chained service invocation mechanism can effectively reduce session set-up delay of the service layer and decrease the load level of the S-CSCF

More information

Item ID: 16068
DC Identifier: http://oa.upm.es/16068/
OAI Identifier: oai:oa.upm.es:16068
DOI: 10.1016/j.compeleceng.2012.03.010
Official URL: http://www.sciencedirect.com/science/article/pii/S004579061200050X
Deposited by: Memoria Investigacion
Deposited on: 28 Jun 2013 14:48
Last Modified: 21 Apr 2016 16:25
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