Abstract

Previous research has demonstrated that in a single IP-over-optical burst switched WDM (OBSWDM) node, higher-priority bursts can be successfully isolated from lower-priority bursts according to a certain user-defined isolation degree. This is achieved by allocating longer offset times (i.e., the time between the arrival of the control packet and the burst) to higher-priority bursts where the longer the offset time, the higher the degree of isolation. However, this creates a catch-22 situation in which quality of service (QoS) is achieved at the expense of a serious degradation in system performance. We present what we believe is a novel dual control-packet OBS system that aims to reduce the loss probability of the single control-packet OBS system owing to priority definitions. The dual control-packet scheme maintains the same QoS isolation degree as the single control-packet scheme but with a much reduced drop probability for lower-priority packets. Under 75% loading conditions, the drop probability for low-priority packets in the dual control QoS scheme ranges from 10 to 5 times lower compared with the single control-packet scheme depending on the situation and the presence of fiber delay lines (FDLs). The dual control-packet system is also shown to exhibit a smaller complexity measure compared with the single control-packet system for moderate loading conditions.

© 2004 Optical Society of America

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  1. C. Qiao and M. Yoo, "Optical burst switching (OBS)--a new paradigm for an optical Internet," J. High Speed Netw. 8, 69-84 (1999).
  2. S. Verma, H. Chaskar, and R. Ravikanth, "Optical burst switching: a viable solution for terabit IP backbone," IEEE Netw. 14, 48-53 (2000).
  3. Y. Xiong, M. Vandenhoute, and H. C. Cankaya, "Control architecture in optical burst-switched WDM networks," IEEE J. Sel. Areas Commun. 18, 1838-1851 (2000).
  4. M. Yoo, C. Qiao, and S. Dixit, "QoS performance of optical burst switching in IP-over-WDM networks," IEEE J. Sel. Areas Commun. 18, 2062-2071 (2000).
  5. M. Yang, S. Q. Zheng, and D. Verchere, "A QoS supporting scheduling algorithm for optical burst switching DWDM networks," in Proceedings of IEEE Conference on Global Telecommunication (GLOBECOM) (IEEE, New York, 2001), pp. 86-91.
  6. H. Li, T. W. Liak, M, and I. L-J. Thng, "Fiber delay line-random early detection QoS scheme for optical burst switching networks," in Proceedings of 7th IEEE International Conference on High Speed Networks and Multimedia Communications (HSNMC'04) (to be published).
  7. D. Q. Liu and M. T. Liu, "Differentiated services and scheduling scheme in optical burst-switched WDM networks," in Proceedings of 10th IEEE International Conference on Networks (ICON) (IEEE, New York, 2002).
  8. Y. Chen, M. Hamdi, and D. H. K. Tsang, "Proportional QoS over OBS networks," in Proceedings of IEEE Globecom (IEEE, New York, 2001), pp. 1510-1514.
  9. S. K. Tan, G. Mohan, andK. C. Chua, "Burst rescheduling with wavelength and last-hop FDL reassignment in WDM optical burst switching networks," in Proceedings IEEE International Conference on Communications (ICC'03) (IEEE, New York, 2003), pp. 1448-1452.
  10. J. Xu,C. Qiao,J. Li, andG. Xu, "Efficient channel scheduling algorithms in optical burst switched networks," in Proceedings of 22nd Annual Joint Conference of the IEEE Computer and Communications Societies (INFOCOM 2003) (IEEE, New York, 2003), pp. 2268-2278.
  11. X. Yu, Y. Chen, and C. Qiao, "Study of traffic statistics of assembled burst traffic in optical burst-switched networks," in OptiComm 2002: Optical Networking and Communications, N. Ghani and K. M. Sivalingam, eds., Proc. SPIE 4874, 149-159 (2002).
  12. H. Li and I. L-J. Thng are preparing a manuscript to be called "Edge node memory usage in optical burst switching networks."

GLOBECOM 2001 (1)

M. Yang, S. Q. Zheng, and D. Verchere, "A QoS supporting scheduling algorithm for optical burst switching DWDM networks," in Proceedings of IEEE Conference on Global Telecommunication (GLOBECOM) (IEEE, New York, 2001), pp. 86-91.

HSNMC'04 (1)

H. Li, T. W. Liak, M, and I. L-J. Thng, "Fiber delay line-random early detection QoS scheme for optical burst switching networks," in Proceedings of 7th IEEE International Conference on High Speed Networks and Multimedia Communications (HSNMC'04) (to be published).

ICON 2002 (1)

D. Q. Liu and M. T. Liu, "Differentiated services and scheduling scheme in optical burst-switched WDM networks," in Proceedings of 10th IEEE International Conference on Networks (ICON) (IEEE, New York, 2002).

IEEE Globecom 2001 (1)

Y. Chen, M. Hamdi, and D. H. K. Tsang, "Proportional QoS over OBS networks," in Proceedings of IEEE Globecom (IEEE, New York, 2001), pp. 1510-1514.

IEEE ICC 2003 (1)

S. K. Tan, G. Mohan, andK. C. Chua, "Burst rescheduling with wavelength and last-hop FDL reassignment in WDM optical burst switching networks," in Proceedings IEEE International Conference on Communications (ICC'03) (IEEE, New York, 2003), pp. 1448-1452.

IEEE J. Sel. Areas Commun. (2)

Y. Xiong, M. Vandenhoute, and H. C. Cankaya, "Control architecture in optical burst-switched WDM networks," IEEE J. Sel. Areas Commun. 18, 1838-1851 (2000).

M. Yoo, C. Qiao, and S. Dixit, "QoS performance of optical burst switching in IP-over-WDM networks," IEEE J. Sel. Areas Commun. 18, 2062-2071 (2000).

IEEE Netw. (1)

S. Verma, H. Chaskar, and R. Ravikanth, "Optical burst switching: a viable solution for terabit IP backbone," IEEE Netw. 14, 48-53 (2000).

INFOCOM 2003 (1)

J. Xu,C. Qiao,J. Li, andG. Xu, "Efficient channel scheduling algorithms in optical burst switched networks," in Proceedings of 22nd Annual Joint Conference of the IEEE Computer and Communications Societies (INFOCOM 2003) (IEEE, New York, 2003), pp. 2268-2278.

J. High Speed Netw. (1)

C. Qiao and M. Yoo, "Optical burst switching (OBS)--a new paradigm for an optical Internet," J. High Speed Netw. 8, 69-84 (1999).

Proc. SPIE (1)

X. Yu, Y. Chen, and C. Qiao, "Study of traffic statistics of assembled burst traffic in optical burst-switched networks," in OptiComm 2002: Optical Networking and Communications, N. Ghani and K. M. Sivalingam, eds., Proc. SPIE 4874, 149-159 (2002).

Other (1)

H. Li and I. L-J. Thng are preparing a manuscript to be called "Edge node memory usage in optical burst switching networks."

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