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http://dx.doi.org/10.6109/jkiice.2011.15.6.1256

Performance Analysis of Group Communication using VoIP in WiBro Networks  

Kim, Myung-Kyun (울산대학교)
Eom, Yun-Sung (울산대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.6, 2011 , pp. 1256-1264 More about this Journal
Abstract
MBS (Multicast Broadcast Service) is defined in WiBro networks for implementing multicast-based services. However, most of the WiBro networks currently used in Korea do not have the MBS functionality and it causes some difficulty in implementing multicast-based services. This paper evaluates the performance of VoIP-based group communication services when implementing using the following two cases: unicast-based and multicast-based group communication systems. The performance evaluation is done using QualNet for each case in terms of the amount of network resource for the service, the delay and delay jitter of packets, and the difference of the delay of members in a group. The simulation result shows that the number of groups and members in a group in a WiBro network is limited because the amount of network resource for the service is increased according to the number of members in a group, and so, the MBS service is required in a WiBro network for a fully-fledged service of VoIP-based group communications. The simulation result also shows that, when a packet bundling is used, the number of groups and members in a group that can be supported in a WiBro network can be increased due to the decrease of the amount of network resource for the service.
Keywords
WiBro; Group Communications; VoIP; Packet Bundling;
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  • Reference
1 IETF, RFC 768, "User Datagram Protocol", 28 Aug, 1980.
2 G. Camarillo, Miguel A. Garc-Mart, The 3G IP Multimedia Subsytem(IMS) (the 3rd ed), Ch 25. Push-to-Talk over Celluar, 2008
3 J. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson and R. Sparks "SIP : Session Initiation Protocol", IETF, RFC3261, June 2002.
4 O. Hersent, Beyond VoIP Protocols : Understanding Voice Technology And Networking Techniques For IP Telephony, John Wiley & Son, 2005.
5 J.L. Chen and K.C. Wang, Reliable WiMAX Multicast Applications, IEEE 8th International conference on computer and Information Technology workshops, pp. 182-187, July 2008.
6 http://www.wimaxforum.org/
7 IEEE, "IEEE Std 802.16e-2005, IEEE Standard for Local and metropolitan area networks, Part 16:Air Interface for Fixed and Mobile Broadband Wireless Access Systems Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands and Corrigendum 1," Feb 2006.
8 IEEE Standard 802.16, "Air Interface for Fixed Broadband Wireless Access System", 2004.
9 http://www.itu.int/rec/T-REC-G/e
10 http://www.itu.int/rec/T-REC/e
11 F. Xiangning and Z. Dengkui, VoIP Frame Bundling for WiMAX Downlink, Circuits and Systems, 2008. APCCAS 2008. IEEE Asia Pacific Conference on, pp. 510 - 513, Nov/Dec 2008.