Photonic Network Communications

, Volume 17, Issue 3, pp 238–244 | Cite as

An adaptive load-aware burst assembly scheme to achieve optimal performance of FDL buffers in OBS networks

  • Hongkyu Jeong
  • JungYul Choi
  • Minho Kang


Optical burst switching (OBS) is regarded as one of the most promising switching technologies for next generation optical networks. Contention resolution of data bursts is a critical mission to implement practical OBS. The use of fiber delay line (FDL) buffers has received a lot of attention as a fundamental but effective solution to resolve burst contention. Several studies have investigated the way to achieve the optimal performance of FDL buffers at a single-node level. However, this article studies how to achieve the best performance of OBS networks with FDL buffers under varying traffic condition at a network level. For this purpose, we propose an adaptive load-aware burst assembly (ALBA) scheme, which adaptively adjusts the size threshold of burst assembler optimized to the current network traffic load. A piggybacking method used to deliver the traffic-load information from core nodes to ingress edge nodes accelerates the adaptiveness of the proposed scheme by reducing the update time of the size threshold. The effectiveness of the ALBA scheme is proved by comparing with No-FDL case and fixed size-threshold cases under changing traffic-load environment from extensive simulation tests.


Burst assembly FDL buffer Optical burst switching 


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  1. 1.
    Qiao C., Yoo M.: Optical burst switching (OBS)—a new paradigm for an optical internet. J. High Speed Netw. 8(1), 69–84 (1999)Google Scholar
  2. 2.
    Xiong Y., Vandenhoute M., Cankaya H.C.: Control architecture in optical burst-switched WDM networks. IEEE J. Sel. Areas Commun. 18(10), 1838–1851 (2000) doi: 10.1109/49.887906 CrossRefGoogle Scholar
  3. 3.
    Yoo S.J.: Optical packet and burst switching technologies for the future photonic internet. IEEE/OSA J. Lighw. Technol. 24(12), 4468–4492 (2006)CrossRefGoogle Scholar
  4. 4.
    Choi J.Y., Choi J.S., Kang M.: Dimensioning burst assembly process in optical burst switching networks. IEICE Trans. Commun. E88-B, 3855–3863 (2005)CrossRefGoogle Scholar
  5. 5.
    Zhang, T., Lu, K., Jue, J.P.: An analytical model for shared fiber-delay line buffers in asynchronous optical packet and burst switches. In: Proceedings of the IEEE International Conference on Communications (ICC’05), 16–20 May 2005, Seoul, Korea, vol. 3, pp. 1636–1640 (2005)Google Scholar
  6. 6.
    Callegati F.: Optical buffers for variable length packets. IEEE Commun. Lett. 4(9), 292–294 (2000) doi: 10.1109/4234.873490 CrossRefGoogle Scholar
  7. 7.
    Choi J.Y., Vu H.L., Kang M.: On achieving the optimal performance of FDL buffers using burst assembly. IEEE Commun. Lett. 11(11), 1–3 (2007) doi: 10.1109/LCOMM.2007.071350 CrossRefGoogle Scholar
  8. 8.
    Rostami, A., Wolisz, A.: Impact of edge traffic aggregation on the performance of FDL-assisted optical core switching nodes. In: Proceedings of the IEEE International Conference on Communications (ICC’07), 24–28 June 2007, Glasgow, Scotland, vol. 1, pp. 2275–2282 (2007)Google Scholar
  9. 9.
    Tanida, H., Ohmae, K., Choi, Y., Okada, H.: An effective BECN/CRN typed deflection routing for QoS guaranteed optical burst switching. In: IEEE Global Telecommunications Conference (Globecom’03), San Francisco, USA, 1–5 December 2003, vol. 5, pp. 2601–2606 (2003)Google Scholar
  10. 10.
    Vokkarane, V.M., Jue, J.P., Sitaraman, S.: Burst segmentation: an approach for reducing packet loss in optical burst switched networks. In: Proceedings of the IEEE International Conference on Communications (ICC’02), New York, USA, May 2002, vol. 5, pp. 2673–2677 (2002)Google Scholar
  11. 11.
    Agusti-Torra, A., Bochmann, G.V., Cervello-Pastor, C.: Retransmission schemes for optical burst switching over star networks. In: Second IFIP International Conference on Communications Networks (WOCN’05), 6–8 March 2005, Dubai, UAE, pp. 126–130 (2005).Google Scholar
  12. 12.
    Farahmand, F., Zhang, Q., Jue, J.P.: A feed-back based contention avoidance mechanism for optical burst switching networks. In: Proceedings of the 3rd International Conference on Optical Burst Switching (WOBS’04), San Jose, USA, October 2004Google Scholar
  13. 13.
  14. 14.
    Garner, G.M.: Application of time and frequency stability parameters to the characterization of ATM cell delay variation and traffic. T1A1.3 and T1X1.3 Working Group, October 1996Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Optical Internet Research CenterInformation and Communications UniversityDaejeonSouth Korea
  2. 2.Platform LaboratoryKT CorporationDaejeongSouth Korea

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