A Novel QoS Provisioning Scheme for OBS Networks

  • Shavan K. Askar
  • Georgios Zervas
  • David K. Hunter
  • Dimitra Simeonidou
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 66)


This paper presents Classified Cloning, a novel QoS provisioning mechanism for OBS networks carrying real-time applications (such as video on demand, Voice over IP, online gaming and Grid computing). It provides such applications with a minimum loss rate while minimizing end-to-end delay and jitter. ns-2 has been used as the simulation tool, with new OBS modules having been developed for performance evaluation purposes. Ingress node performance has been investigated, as well as the overall performance of the suggested scheme. The results obtained showed that new scheme has superior performance to classical cloning. In particular, QoS provisioning offers a guaranteed burst loss rate, and delay unlike existing proposals for QoS implementation in OBS which use the burst offset time to provide such differentiation. Indeed, classical schemes increase both end-to-end delay and jitter. It is shown that the burst loss rate is reduced by 50% reduced over classical cloning.


QoS provisioning Optical Burst Switching Cloning 


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  1. 1.
    Qiao, C., Yoo, M.: Optical Burst Switching ( OBS ) - A New Paradigm for an Optical Internet. Journal of High Speed Networks 8(1), 69–84 (1999)Google Scholar
  2. 2.
    Bianco, A., et al.: Design of optical packet switching networks. In: GLOBECOM, New York, vol. 3, pp. 2752–2756 (2002)Google Scholar
  3. 3.
    Perros, H.G., Rouskas, G.: Techniques for optical packet switching and optical burst switching. IEEE Communications Magazine 39, 136–142 (2001)Google Scholar
  4. 4.
    Luo, J., et al.: ROBS: A novel architecture of Reliable Optical Burst Switching with congestion control. Journal of High Speed Networks 16, 123–131 (2007)Google Scholar
  5. 5.
    Simeonidou, D., et al.: Dynamic Optical-Network Architectures and Technologies for Existing and Emerging Grid Services. Journal of Lightwave Technology 23, 3347–3357 (2005)CrossRefGoogle Scholar
  6. 6.
    Xu, H., Fan, G.: Analysis of the burst loss rate in OBS rings with depth limited optical buffers. Journal of High Speed Networks 16, 341–351 (2007)Google Scholar
  7. 7.
    Vargas, T.R., Guerri, J.C., Sales, S.: Optimal Configuration for Size-Based Burst Assembly Algorithms at the Edge Node for Video Traffic Transmissions over OBS Networks. Building, 130–133 (2008)Google Scholar
  8. 8.
    Olmos, J.J.V., et al.: Optical node with time-space-and-wavelength domain contention resolution, deflection and dropping capability. Optics Express 14, 11545–11550 (2006)CrossRefGoogle Scholar
  9. 9.
    Rosberg, Z., et al.: Analysis of OBS Networks With Limited Wavelength Conversion. IEEE/ACM Transactions on Networking 14, 1118–1127 (2006)CrossRefGoogle Scholar
  10. 10.
    Pedro, J., et al.: Efficient Optical Burst-Switched Networks using only Fiber Delay Line Buffers for Contention Resolution. Networks (2006)Google Scholar
  11. 11.
    Hsu, C., Liu, T., Huang, N.: Performance analysis of Deflection Routing in Optical Burst Switched Networks. In: Proceedings, IEEE INFOCOM (2002)Google Scholar
  12. 12.
    Wang, X., Morikawa, H., Aoyama, T.: Deflection routing protocol for burst switching WDM mesh networks. In: Proc. SPIE/IEEE Terabit Optical Networking: Architecture, Control, and Management Issues, pp. 242–252 (2000)Google Scholar
  13. 13.
    Vokkarane, V.M., Member, S., Jue, J.P.: Prioritized Burst Segmentation and Composite Burst-Assembly Techniques for QoS Support in Optical Burst-Switched Networks. IEEE Journal on Selected Areas in Communications 21, 1198–1209 (2003)CrossRefGoogle Scholar
  14. 14.
    Vokkarane, V.M., Jue, J.P., Sitaraman, S.: Burst Segmentation: An Approach For Reducing Packet Loss In Optical Burst Switched Networks. Time, 2673–2677 (2002)Google Scholar
  15. 15.
    Hirota, Y., Tode, H., Murakami, K.: A Study on RWA Cooperation Method Considering Retransmission. IEIC Journal 106(208), 55–60 (2006)Google Scholar
  16. 16.
    Kwak, K.J., Coffman, E.: Retransmission in OBS networks with fiber delay lines. In: Fourth International Conference on Broadband, Communication, Networks, and Systems, BROADNETS 2007 (2007)Google Scholar
  17. 17.
    Huang, X., Vokkarane, V.M., Jue, J.P.: Burst Cloning: A Proactive Scheme to Reduce Data Loss in Optical Burst-Switched Networks. Science, 1673–1677 (2005)Google Scholar
  18. 18.
    Vokkarane, V.M., Zhang, Q.: Forward Redundancy: A Loss Recovery Mechanism for Optical Burst-Switched Networks. Wireless and Optical Communications Networks, IFIP, 5 (2006)Google Scholar
  19. 19.
    Um, T.-W., et al.: priority based duplicate burst transmission in obs. ETRI 30 (2008)Google Scholar
  20. 20.
    Maach, A., Hafid, A.S., Belbekkouche, A.: Burst Loss Reduction schemes in Optical Burst Switching Networks. Network, 256–262 (2008)Google Scholar
  21. 21.
    Watagodakumbura, C., Praluyanto, H.: Composite Burst Assembly and Lower Real-Time Class Utilization Threshold in Optical Burst Switching As Means of Overcoming Effects of Self-Similarity. ITNG (2007)Google Scholar
  22. 22.
    Casoni, M., Luppi, E., Merani, M.L.: Impact of Assembly Algorithms on End-to-End Performance in Optical Burst Switched Networks with Different QoS Classes. In: IEEE/SPIE Third Workshop on Optical Burst Switching 2004, San Jose, CA (October 2004)Google Scholar

Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2012

Authors and Affiliations

  • Shavan K. Askar
    • 1
  • Georgios Zervas
    • 1
  • David K. Hunter
    • 1
  • Dimitra Simeonidou
    • 1
  1. 1.School of Computer Science and Electronic EngineeringUniversity of EssexColchesterUK

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