Retransmission issue of SIP session over UDP transport protocol in IP Multimedia Subsystem - IMS

Author

Pranoto, Heru ; Ulvan, Ardian

Author_Institution

Dept. of Electr. Eng., State Polytech. of Medan, Medan, Indonesia

fYear

2013

fDate

7-8 Nov. 2013

Firstpage

273

Lastpage

277

Abstract

In this paper, the ability of SIP session over UDP transport protocol retransmission issue in IMS network is investigated and analysed. We described SIP session in IMS with end-to-end SIP signalling flow through the IMS entities such as P-CSCF, I-CSCF, S-CSCF and HSS, including the involvement of related SIP messages. The UDP retransmission issue, e.g., INVITE request and loss rates parameters, were conducted to determine the loss of sessions. It has been found that the gradual increase of session loss occurred after the first attempt of transmission. It is affected by the request rates and loss rates. Therefore, the deployment of RFC3261 TimerB and T1 with value of 32s and 0.5s respectively, will prevent the SIP system from the huge number of retransmission.

Keywords

IP networks; multimedia systems; signalling protocols; transport protocols; HSS; I-CSCF; IMS; IMS entities; INVITE request; IP multimedia subsystem; P-CSCF; RFC3261 T1; RFC3261 TimerB; S-CSCF; SIP messages; SIP session loss rate parameters; SIP system; UDP retransmission; UDP transport protocol retransmission; end-to-end SIP signalling flow; request rates; IP networks; Multimedia communication; Propagation losses; Registers; Servers; Transport protocols; IMS; SIP messages; Session Establishment; UDP transport protocol; Wireless Network;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation, Communications, Information Technology, and Biomedical Engineering (ICICI-BME), 2013 3rd International Conference on

Conference_Location

Bandung

Print_ISBN

978-1-4799-1649-8

Type

conf

DOI

10.1109/ICICI-BME.2013.6698507

Filename

6698507