Comparison of Conventional and Offset Time-Emulated Optical Burst Switching Architectures

Optical burst switching (OBS) control architecture considers two different models for management of offset-times in the network. A conventional OBS introduces an offset time (OT) between a control packet and a corresponding burst in soft-way by delaying the transmission of the burst in respect to the control packet in the edge node. Another idea for an OBS operation comes from optical packet switching (OPS) world and it intends to emulate OT by means of an additional fiber span (FS) introduced in the data path at the input port of core node. Although the conventional OBS has attracted lots of attention, in this paper we highlight that it possesses many difficulties that can be avoided easily in OT-emulated OBS

[1]  Chunming Qiao,et al.  Maximizing Throughput for Optical Burst Switching Networks , 2004, INFOCOM.

[2]  Piet Demeester,et al.  Performance improvement of an internally blocking optical packet/burst switch , 2003, IEEE International Conference on Communications, 2003. ICC '03..

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

[4]  Chunming Qiao,et al.  Optical burst switching for service differentiation in the next-generation optical Internet , 2001 .

[5]  Yijun Xiong,et al.  Control architecture in optical burst-switched WDM networks , 2000, IEEE Journal on Selected Areas in Communications.

[6]  J. Sole-Pareta,et al.  Effective burst preemption in OBS network , 2006, 2006 Workshop on High Performance Switching and Routing.

[7]  You-Ze Cho,et al.  An Efficient Optical Burst Switching Technique for Multi-Hop Networks , 2004 .

[8]  Nen-Fu Huang,et al.  Performance analysis of deflection routing in optical burst-switched networks , 2002, Proceedings.Twenty-First Annual Joint Conference of the IEEE Computer and Communications Societies.

[9]  Farid Farahmand,et al.  Supporting QoS with look-ahead window contention resolution in optical burst switched networks , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[10]  Halima Elbiaze,et al.  An efficient adaptive offset mechanism to reduce burst losses in OBS networks , 2005, GLOBECOM '05. IEEE Global Telecommunications Conference, 2005..

[11]  K. Dolzer,et al.  On burst assembly in optical burst switching networks—A performance evaluation of just-enough-time , 2001 .

[12]  Farid Farahmand,et al.  Look-ahead window contention resolution in optical burst switched networks , 2003, Workshop on High Performance Switching and Routing, 2003, HPSR..