Flexible waveband routing optical networks

A novel coarse granular routing scheme for elastic optical networks is proposed in this paper together with a node architecture and network design algorithm. The proposed scheme bundles optical paths to be routed together and each bundle of paths, named flexible waveband, is routed as an entity. Path bundling is done by a small port count wavelength-selective switch (WSS) while flexible waveband routing is done by the other optical switches, i.e., two stage routing. The proposed network design algorithm resolves the routing and frequency slot assignment problem while considering specific constraints imposed by the routing scheme. Numerical experiments on several topologies confirm that the routing performance degradation caused by the coarse granular routing is small while the number of WSSs is substantially reduced.

[1]  Ludovic Noirie,et al.  Multi-Granularity Optical Cross-Connect , 2000 .

[2]  Ioannis Tomkos,et al.  Routing and Spectrum Allocation in OFDM-Based Optical Networks with Elastic Bandwidth Allocation , 2010, 2010 IEEE Global Telecommunications Conference GLOBECOM 2010.

[3]  Hiroshi Hasegawa,et al.  An efficient hierarchical optical path network design algorithm based on a traffic demand expression in a cartesian product space , 2006, IEEE Journal on Selected Areas in Communications.

[4]  K. Shimizu,et al.  Hierarchical optical path cross-connect systems for large scale WDM networks , 1999, OFC/IOOC . Technical Digest. Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication.

[5]  Rauf Izmailov,et al.  Nonuniform waveband hierarchy in hybrid optical networks , 2003, IEEE INFOCOM 2003. Twenty-second Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE Cat. No.03CH37428).

[6]  T. Takahashi,et al.  Silica-based PLC transponder aggregators for colorless, directionless, and contentionless ROADM , 2012, OFC/NFOEC.

[7]  M. Jinno,et al.  Algorithms for maximizing spectrum efficiency in elastic optical path networks that adopt distance adaptive modulation , 2010, 36th European Conference and Exhibition on Optical Communication.

[8]  S. Chandrasekhar,et al.  Flexible waveband optical networking without guard bands using novel 8-skip-0 banding filters , 2005, IEEE Photonics Technology Letters.

[9]  Ting Wang,et al.  Hierarchical multi-granular switching in flexible grid WDM networks , 2012, OFC/NFOEC.

[10]  H. Takahashi,et al.  Silica-based PLC Type 32 x 32 Optical Matrix Switch , 2006, 2006 European Conference on Optical Communications.

[11]  M. D. Feuer,et al.  Advanced ROADM networks , 2012, OFC/NFOEC.

[12]  K.-I. Sato,et al.  Monolithically integrated waveband selective switch using cyclic AWGs , 2008, 2008 34th European Conference on Optical Communication.

[13]  Hiroshi Hasegawa,et al.  A novel large-scale OXC architecture and an experimental system that utilizes wavelength path switching and fiber selection. , 2013, Optics express.

[14]  Wei Guo,et al.  On the spectrum-efficiency of bandwidth-variable optical OFDM transport networks , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[15]  Masahiko Jinno,et al.  Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies , 2009, IEEE Communications Magazine.

[16]  K Noguchi,et al.  Development of Terabit-Scale Compact Hierarchical Optical Cross-Connect System Using Planar Device Integration , 2011, Journal of Lightwave Technology.

[17]  Chunming Qiao,et al.  Framework for waveband switching in multigranular optical networks: part I-multigranular cross-connect architectures [Invited] , 2006 .

[18]  Joao Santos,et al.  Scalable and cost-effective design of optical transport networks supporting heterogeneous Ethernet services , 2010, 36th European Conference and Exhibition on Optical Communication.

[19]  Suresh Subramaniam,et al.  Optimal Waveband Switching in Optical Ring Networks , 2010, 2010 Proceedings IEEE INFOCOM.

[20]  Masayuki Okuno,et al.  Low loss and high extinction ratio strictly nonblocking 16/spl times/16 thermooptic matrix switch on 6-in wafer using silica-based planar lightwave circuit technology , 2001 .

[21]  Takayuki Mizuno,et al.  Silica-based PLC 1×N switch for all wavelength bands , 2014, OFC 2014.

[22]  Massimo Tornatore,et al.  Optical network design with mixed line rates , 2009, Opt. Switch. Netw..

[23]  Masahiko Jinno,et al.  Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network [Topics in Optical Communications] , 2010, IEEE Communications Magazine.