Differentiated Quality of Service Model in the Internet

인터넷에서의 차별화된 서비스품질 제공 방안

  • Received : 2010.03.02
  • Accepted : 2010.04.06
  • Published : 2010.06.01

Abstract

The quality of service(QoS) model should be presented with the optimal network design to effectively provide the multimedia data services between users and converged services with mobile or TV in the next-generation Internet. In specific, the method to provide differentiated services for each user is needed in the given Internet node to offer the previously negotiated QoS with the user. In this paper, the performance of the QoS enabling technologies in the differentiated services(DiffServ) network domain is analyzed. The QoS offering model and QoS metrics are presented to analyze the performance of the major scheduling algorithms. Under the real network topology and virtual service scenarios in the university, the NS-2 network simulation based on the discrete-event is performed. The results show that the ratio-based scheduling method is more effective rather than the bandwidth-assignment method.

Keywords

References

  1. Blake, S. (1998), An Architecture for Differentiated Services, IETF RFC 2476.
  2. Braden, R., Clark, D., and Shenker, S. (1994), Integrated Services in the Internet Architecture: an Overview, IETF RFC 1633.
  3. Cho, K. S., Jang, H. S., Lim, S. K., and Kim, Y. S. (2002), Quality of Service and Network Performance for the IMT-2000 Services, IE Interfaces, 15(3), 256-262.
  4. Crawley, E. (1998), A Framework for QoS-based Routing in the Internet, IETF RFC2386.
  5. ETSI (1994), Network Aspects(NA) : General Aspects of Quality of Service(QoS) and Network Performance(NP), Technical Report, ETR003.
  6. Fall, K. and Varadhan, K. (2009), The ns Manual(The VINT Project), http://www.is1.edu/nsnam/ns/ns-documentation.
  7. Gozdecki J., Jajszczyk, A., Stankiewicz, R. (2003), Quality of Service Terminology in IP Networks, IEEE Communication Magazine, 153-159.
  8. Hardy, W. C. (2001), QoS Measurement and Evaluation of Telecommunications Quality of Service, Wiley.
  9. Heinanen, J. and Guerin, R. (1999), A Single Rate Three Color Marker, IETF RFC 2697.
  10. Kim, H. K. (2003), Understanding of QoS Technologies, Network Manias White Paper, Netmanias-wp-sub-104, http://www.netmanias.com.
  11. Kim, T. J. (2008), Performance Evaluation of the RSVP-capable Router using Latency-Optimized Fair Queueing Scheduler, Journal of Korea Multimedia Society, 11(11), 1536-1546.
  12. Lee, Y. R. (2009), The Case Analysis of QoS Evaluation for Foreign Major Countries, KISDI Report, 21(14), 25-43.
  13. SourceForge (2009), The Network Simulator-ns-2, http://sourceforge.net/projects/nsnam (or http://www.isi.edu/nsmam/ns/index.html).
  14. Xiao, X. and Ni, L. M. (1999), Internet QoS : A Big Picture, IEEE Network, 13(2), 8-18. https://doi.org/10.1109/65.768484