Practical performance evaluation of peer-to-peer internet telephony using SIP

Meyer, Benjamin and Portmann, Marius (2008). Practical performance evaluation of peer-to-peer internet telephony using SIP. In: Xiangjian He, Proceedings : 8th IEEE International Conference on Computer and Information Technology Workshops : CIT Workshops 2008. 8th IEEE International Conference on Computer and Information Technology Workshops, CIT Workshops 2008, Sydney, (204-209). 8 - 11 July 2008. doi:10.1109/CIT.2008.Workshops.44

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Author Meyer, Benjamin
Portmann, Marius
Title of paper Practical performance evaluation of peer-to-peer internet telephony using SIP
Conference name 8th IEEE International Conference on Computer and Information Technology Workshops, CIT Workshops 2008
Conference location Sydney
Conference dates 8 - 11 July 2008
Proceedings title Proceedings : 8th IEEE International Conference on Computer and Information Technology Workshops : CIT Workshops 2008
Journal name Proceedings - 8th IEEE International Conference on Computer and Information Technology Workshops, CIT Workshops 2008
Place of Publication Los Alamitos, CA United States
Publisher IEEE Computer Society
Publication Year 2008
Year available 2008
Sub-type Fully published paper
DOI 10.1109/CIT.2008.Workshops.44
ISBN 9780769533391
Editor Xiangjian He
Start page 204
End page 209
Total pages 6
Collection year 2009
Language eng
Abstract/Summary Peer-to-peer (P2P) systems have been shown to have excellent scalability and fault tolerance characteristics, mainly due to their distributed nature and the lack of a single point of failure. As a result, P2P technology has been proposed for a wide range of applications. Recently, a number of researchers proposed the use of P2P technology in the context of Voice over IP (VoIP) or Internet Telephony, in particular with the IETF's Session Initiation Protocol (SIP). By replacing the centralised components of the client/server based SIP protocol with a P2P system (P2P-SIP), a higher level of robustness and scalability can be achieved. However, this comes at the cost of a higher latency, which might negatively impact on the Quality of Service (QoS) due to increased delays in call establishment. In this paper, we provide a practical performance evaluation of a P2P-SIP system via extensive measurements on OpenDHT, a large scale, publicly accessible P2P system. The basis of this evaluation is formed by our own implementation of a P2P-SIP system, and standard, SIP-compliant client software. Our results confirm the feasibility of the P2P-SIP approach, since the cost in terms of increased delay in call setup time is quite moderate and well below the recommended value for traditional telephony defined by the Standardisation Sector of the International Telecommunication Union (ITU-T).
Subjects 1700 Computer Science
1704 Computer Graphics and Computer-Aided Design
1710 Information Systems
2208 Electrical and Electronic Engineering
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
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