Number of tunable wavelength converters and internal wavelengths needed for cost-effective design of asynchronous optical packet switching system with shared or output fibre delay line buffer

Optical packet switching (OPS) is being considered as one of the switching technologies for a future optical internet. For contention resolution in an optical packet switching (OPS) system, the wavelength dimension is generally used in combination with a fibre delay line (FDL) buffer. In this study, the authors propose to reduce the number of tunable wavelength converters (TWCs) by sharing TWCs for cost-effective design of an asynchronous OPS system with a shared or an output FDL buffer. Asynchronous and variable-length packets are considered in the OPS system design. To investigate the number of TWCs needed for the OPS system, an algorithm is proposed, which searches for an available TWC and an unused internal wavelength, as well as an outgoing channel. This algorithm is applied to an OPS system with a shared or an output FDL buffer. Also, the number of internal wavelengths (i.e. the conversion range of the TWC) needed for an asynchronous OPS system is presented for cost reduction of the OPS system.

[1]  Masayuki Murata,et al.  Optical fiber-delay-line buffer management in output-buffered photonic packet switch to support service differentiation , 2006, IEEE Journal on Selected Areas in Communications.

[2]  Q. Zhang,et al.  Optical packet and burst switched networks: a review , 2009, IET Commun..

[3]  W. Cerroni,et al.  Wavelength allocation algorithms in optical buffers , 2001, ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240).

[4]  H. Harai,et al.  High-speed buffer management for 40 gb/s-based photonic packet switches , 2006, IEEE/ACM Transactions on Networking.

[5]  Franco Callegati,et al.  Optical buffers for variable length packets , 2000, IEEE Communications Letters.

[6]  Huhnkuk Lim,et al.  Novel scheduling algorithm for hybrid buffer structured optical packet switch , 2006 .

[7]  E. Patzak,et al.  Integrated Evaluation of Performance and Technology—Throughput of Optical Burst Switching Nodes Under Dynamic Traffic , 2008, Journal of Lightwave Technology.

[8]  Liam P. Barry,et al.  A two-moment performance analysis of optical burst switched networks with shared fibre delay lines in a feedback configuration , 2012, Opt. Switch. Netw..

[9]  B. Ortega,et al.  Advanced Subcarrier Multiplexed Label Swapping in Optical Packet Switching Nodes for Next Generation Internet Networks , 2009, Journal of Lightwave Technology.

[10]  Yuhua Chen,et al.  Optimal Burst Scheduling in Optical Burst Switched Networks , 2007, Journal of Lightwave Technology.

[11]  Vincenzo Eramo,et al.  Performance evaluation of bufferless optical packet switches supporting quality of service , 2009, IET Commun..

[12]  Yuhua Chen,et al.  Contour-Based Priority Scheduling in Optical Burst Switched Networks , 2007, Journal of Lightwave Technology.

[13]  Takahashi Tatsuro,et al.  Proposal of Fiber Delay Line Buffers with Variable Delay Line for Optical Packet Networks , 2008 .

[14]  M. O'Mahony,et al.  Future Optical Networks , 2006, 2007 9th International Conference on Telecommunications.

[15]  Zhong Pan,et al.  Optical Router Control Architecture and Contention Resolution Algorithms Capable of Asynchronous, Variable-Length Packet Switching , 2010, IEEE/OSA Journal of Optical Communications and Networking.

[16]  M.J. O'Mahony,et al.  The “OPORON” Project: Demonstration of a Fully Functional End-to-End Asynchronous Optical Packet-Switched Network , 2007, Journal of Lightwave Technology.

[17]  Huhnkuk Lim.  An Optical Packet Switch with a Limited Number of TWCs and Internal Wavelengths for the Hybrid Buffer , 2012, IEICE Trans. Commun..

[18]  T. Zhang,et al.  Shared fiber delay line buffers in asynchronous optical packet switches , 2006, IEEE Journal on Selected Areas in Communications.

[19]  Piet Demeester,et al.  Scheduling Algorithms for a Slotted Packet Switch with either Fixed or Variable Length Packets , 2004, Photonic Network Communications.

[20]  A. Detti,et al.  Optical Packet Network With Limited-Range Wavelength Conversion: A Novel Formalization of the Optimal Scheduling Problem , 2009, Journal of Lightwave Technology.

[21]  M. S. Moreolo,et al.  Optical Fiber Communication Conference , 2014 .

[22]  M. Listanti,et al.  Cost Evaluation of Optical Packet Switches Equipped With Limited-Range and Full-Range Converters for Contention Resolution , 2008, Journal of Lightwave Technology.

[23]  Minghua Chen,et al.  Output-Aware Buffering with Variable Delay Buffers in Optical Packet Switching Networks , 2007, OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference.

[24]  Marco Listanti,et al.  A comparison study on the number of wavelength converters needed in synchronous and asynchronous all-optical switching architectures , 2003 .

[25]  Jay Cheng,et al.  Feedforward SDL Constructions of Output-Buffered Multiplexers and Switches with Variable Length Bursts , 2007, IEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications.

[26]  S.J.B. Yoo,et al.  Optical Packet and Burst Switching Technologies for the Future Photonic Internet , 2006, Journal of Lightwave Technology.