On the Early Release of Burst-Control Packets in Optical Burst-Switched Networks

In Optical Burst-Switched networks, the so-called Burst-Control Packet is sent a given offset-time ahead of the optical data burst to advertise the imminent burst arrival, and reserve a time-slot at each intermediate node to allocate it. This work proposes a methodology to estimate the number of packets to arrive in a given amount of time, in order to make it possible to send the BCP packet straightafter the first packet arrival and reduce the latency experienced during the burst-assembly process. The following studies the impact of a wrong guess in terms of over-reservation of resources and waiting-time at the assembler, providing a detailed characterisation of their probability density functions. Additionally, a case example in a scenario with non-homogeneous Poisson arrivals is analysed and it is shown how to choose the appropriate burst-assembly algorithm values to never exceed a given over-reservation amount.

[1]  Michalis Faloutsos,et al.  A nonstationary Poisson view of Internet traffic , 2004, IEEE INFOCOM 2004.

[2]  Chunming Qiao,et al.  Traffic statistics and performance evaluation in optical burst switched networks , 2004 .

[3]  Chunming Qiao,et al.  Optical burst switching: a new area in optical networking research , 2004, IEEE Network.

[4]  QiaoChunming,et al.  Optical burst switching (OBS) - a new paradigm for an optical Internet , 1999 .

[5]  Chunming Qiao,et al.  Just-Enough-Time (JET): a high speed protocol for bursty traffic in optical networks , 1997, 1997 Digest of the IEEE/LEOS Summer Topical Meeting: Vertical-Cavity Lasers/Technologies for a Global Information Infrastructure/WDM Components Technology/Advanced Semiconductor Lasers and Application.

[6]  Jonathan S. Turner,et al.  Terabit burst switching , 1999, J. High Speed Networks.

[7]  R. Ravikanth,et al.  Optical burst switching: a viable solution for terabit IP backbone , 2000 .

[8]  István Csabai,et al.  Understanding Packet Pair Separation Beyond the Fluid Model: The Key Role of Traffic Granularity , 2006, Proceedings IEEE INFOCOM 2006. 25TH IEEE International Conference on Computer Communications.

[9]  Charles A. Brackett,et al.  Dense Wavelength Division Multiplexing Networks: Principles and Applications , 1990, IEEE J. Sel. Areas Commun..

[10]  Xiaojun Cao,et al.  Traffic statistics and performance evaluation in optical burst switched networks , 2004, Journal of Lightwave Technology.

[11]  Víctor López,et al.  On the analysis of burst-assembly delay in OBS networks and applications in delay-based service differentiation , 2006, Photonic Network Communications.