Power-Efficient Protection With Directed $p$ -Cycles for Asymmetric Traffic in Elastic Optical Networks

In this paper, we investigate power-efficient directed preconfigured cycles (p-Cycles) for asymmetric traffic protection in elastic optical networks (EONs) against single link failure. Owing to the advantage of distinguishing traffic amount in two directions, directed p-cycles consume low power by allocating different spectrum slots and modulation formats for each direction. A mixed integer linear programming (MILP) model is formulated to minimize total power consumption, which takes into account directed cycle generation, spectrum allocation, modulation adaptation, and protection capacity. To increase the scalability, the MILP model is decomposed, and a two-step approach is proposed: improved cycle enumeration and a simplified integer linear programming model. Extensive simulations are performed to study the power consumption of p-cycles under different traffic patterns in terms of traffic asymmetry (TASY), anycast ratio (AR), and the number of data centers (DCs). The results strongly demonstrate that directed p-cycles obtain significant power savings for protecting asymmetric traffic in EONs. The power savings rise up to 46.91% and 36.38% compared with undirected p-cycles as the TASY and AR increase, respectively. Moreover, the directed p-cycles achieve valuable power savings (up to 46.1%) with the introduction of DCs while the amount of power savings does not depend on the number of DCs.

[1]  V. Lopez,et al.  Differentiated quality of protection to improve energy efficiency of survivable optical transport networks , 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

[2]  Biswanath Mukherjee,et al.  Survivable WDM mesh networks , 2003 .

[3]  Brigitte Jaumard,et al.  Directed vs . Undirected p-Cycles and FIPP p-Cycles , 2009 .

[4]  Krzysztof Walkowiak,et al.  Tabu search algorithm for routing, modulation and spectrum allocation in elastic optical network with anycast and unicast traffic , 2015, Comput. Networks.

[5]  Krzysztof Walkowiak,et al.  Anycasting in connection-oriented computer networks: Models, algorithms and results , 2010, Int. J. Appl. Math. Comput. Sci..

[6]  Fan Ji,et al.  Service availability oriented p-cycle protection design in elastic optical networks , 2014, IEEE/OSA Journal of Optical Communications and Networking.

[7]  Hong Guo,et al.  Survivable elastic optical networks: survey and perspective (invited) , 2016, Photonic Network Communications.

[8]  Xiang Zhou,et al.  Dynamic RMSA in spectrum-sliced elastic optical networks for high-throughput service provisioning , 2013, 2013 International Conference on Computing, Networking and Communications (ICNC).

[9]  Andrzej Kasprzak,et al.  Multiflow transponders for provisioning of asymmetric traffic in elastic optical networks with dedicated path protection , 2014, 2014 The European Conference on Optical Communication (ECOC).

[10]  V. Lopez,et al.  Traffic and power-aware protection scheme in Elastic Optical Networks , 2012, 2012 15th International Telecommunications Network Strategy and Planning Symposium (NETWORKS).

[11]  Jaafar M. H. Elmirghani,et al.  Energy-efficient resilient optical networks: Challenges and trade-offs , 2015, IEEE Communications Magazine.

[12]  Francesco Musumeci,et al.  Protection in optical transport networks with fixed and flexible grid: Cost and energy efficiency evaluation , 2014, Opt. Switch. Netw..

[13]  Ying Wu,et al.  Survivable routing and spectrum allocation algorithm based on p-cycle protection in elastic optical networks , 2014 .

[14]  W. Lu,et al.  Dynamic p-Cycle Protection in Spectrum-Sliced Elastic Optical Networks , 2014, Journal of Lightwave Technology.

[15]  Krzysztof Walkowiak,et al.  Joint anycast and unicast routing and spectrum allocation with dedicated path protection in Elastic Optical Networks , 2014, 2014 10th International Conference on the Design of Reliable Communication Networks (DRCN).

[16]  Wei Lu,et al.  Efficient resource allocation for all-optical multicasting over spectrum-sliced elastic optical networks , 2013, IEEE/OSA Journal of Optical Communications and Networking.

[17]  Xiaowen Dong,et al.  On the Energy Efficiency of Physical Topology Design for IP Over WDM Networks , 2012, Journal of Lightwave Technology.

[18]  Zuqing Zhu,et al.  On Spectrum Efficient Failure-Independent Path Protection p-Cycle Design in Elastic Optical Networks , 2015, Journal of Lightwave Technology.

[19]  H.T. Mouftah,et al.  Survivability Approaches Using p-Cycles in WDM Mesh Networks Under Static Traffic , 2009, IEEE/ACM Transactions on Networking.

[20]  Wensheng He.  Survivable design in WDM mesh networks , 2006 .

[21]  Wayne D. Grover,et al.  Cycle-oriented distributed preconfiguration: ring-like speed with mesh-like capacity for self-planning network restoration , 1998, ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220).

[22]  Suresh Subramaniam,et al.  Survivability in optical networks , 2000, IEEE Netw..

[23]  Krzysztof Walkowiak,et al.  Evaluation of impact of traffic asymmetry on performance of Elastic Optical Networks , 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

[24]  Kai Xu,et al.  Optimal design for $$p$$p-Cycle-protected elastic optical networks , 2015, Photonic Network Communications.

[25]  Wayne D. Grover,et al.  The threshold hop-limit effect in p , 2005, Opt. Switch. Netw..

[26]  Zuqing Zhu,et al.  Energy-efficient protection with directed p-Cycles for asymmetric traffic in Elastic Optical Networks , 2016, 2016 21st European Conference on Networks and Optical Communications (NOC).

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