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Issue No.06 - November/December (2008 vol.12)
pp: 77-82
Ya-Chin Sung , National Chiao Tung University
Yi-Bing Lin , National Chiao Tung University
The Third-Generation Partnership Project (3GPP) specifies 3G-WLAN interworking that lets mobile stations (MSs) access 3G networks via WLAN-based packet data gateways (PDGs). The specification mandates that packets delivered between an MS and a PDG should be protected by IPsec. This article studies IPsec-based VoIP performance (in terms of throughput, packet loss rate, latency, and jitter) in the 3G-WLAN integration environment. The study is designed to provide guidelines for selecting appropriate system parameter values for VoIP over WLAN.
wireless LAN, third-generation mobile telecommunications, IP security, voice over IP
Ya-Chin Sung, Yi-Bing Lin, "IPsec-Based VoIP Performance in WLAN Environments", IEEE Internet Computing, vol.12, no. 6, pp. 77-82, November/December 2008, doi:10.1109/MIC.2008.128
1. 3GPP TS 23.234, 3GPP System to Wireless Local Area Network (WLAN) Interworking; System Description (release 7), 3rd Generation Partnership Project (3GPP), 2006; 23.234.
2. S. Kent and R. Atkinson, IP Encapsulating Security Payload (ESP), IETF RFC 2406, Nov. 1998;
3. Y.-B. Lin and A.-C. Pang, Wireless and Mobile All-IP Networks, Wiley, 2005.
4. J. Rosenberg et al., SIP: Session Initiation Protocol, IETF RFC 3261, June 2002;
5. S. Casner et al., RTP: A Transport Protocol for Real-Time Applications, IETF RFC 3550, July 2003;
6. Spirent Communications, "SmartVoIPQoS User Guide," 2001,
7. ITU-T G.711 Recommendation, Pulse Code Modulation (PCM) of Voice Frequencies, Int'l Telecommunication Union, Nov. 1988; .
8. ITU-T G.729 Recommendation, Coding of Speech at 8 kbit/s Using Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP), Int'l Telecommunication Union, Mar. 1996; .
9. ANSI X9.52-1998, Triple Data Encryption Algorithm Modes of Operation, Am. Nat'l Standard Inst., 1998.
10. FIPS 180-1, Secure Hash Standard, Nat'l Inst. of Standards and Technology, Springer-Verlag, 1995;
11. D.P. Hole and F.A. Tobagi, "Capacity of an IEEE 802.11b Wireless LAN Supporting VoIP," Proc. IEEE Int'l Conf. Comm., vol. 1, 2004, pp. 196–201.
12. W. Wang, S.-C. Liew, and V.O.K. Li, "Solutions to Performance Problems in VoIP over an 802.11 Wireless LAN," IEEE Trans. Vehicular Technology, vol. 54, no. 1, 2005, pp. 366–384.
13. R. Rajavelsamy et al., "Performance Evaluation of VoIP over 3G-WLAN Interworking System," IEEE Wireless Comm. and Networking Conf., vol. 4, 2005, pp. 2312–2317.
14. NTT Communications, "NTT Com Adds Jitter SLA for Global IP Network Services," Mar. 2005, .
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