Title :
Performance Modelling and Evaluation of Handover Mechanism in IP Multimedia Subsystems
Author :
Mkwawa, I.M. ; Kouvatsos, D.D.
Author_Institution :
Dept. of Comput., Univ. of Bradford, Bradford
Abstract :
IP multimedia subsystems (IMS) is using session initiation protocol (SIP) as signalling protocol. SIP is becoming computing intensive and hence the ability of entry and exit proxies to process SIP messages has great impact on the overall performance of the IMS core network. This paper shows that the flow of SIP messages during handover process in the IMS core network complies with the well known central server model. The later is validated via discrete event simulation results. The performance prediction study reveals that S-CSCF is the bottleneck device of the IMS core network processing a large number of SIP messages.
Keywords :
IP networks; multimedia communication; signalling protocols; IP multimedia subsystems; SIP protocol; central server model; discrete event simulation results; handover mechanism; session initiation protocol; signalling protocol; Communication system traffic control; Computer networks; GSM; Leg; Mobile communication; Mobile radio mobility management; Multimedia computing; Multimedia systems; Protocols; Wireless LAN; Buzen; Handover; IMS; Mobility; Performance; Queue; SIP;
Conference_Titel :
Systems and Networks Communications, 2008. ICSNC '08. 3rd International Conference on
Conference_Location :
Sliema
Print_ISBN :
978-0-7695-3371-1
DOI :
10.1109/ICSNC.2008.48
