Survivable impairment-aware traffic grooming and regenerator placement with connection-level protection

In this paper, we address the problem of survivable traffic grooming and regenerator placement in optical wavelength division multiplexing (WDM) networks with impairment constraints. The working connections are protected end to end by provisioning bandwidth along a sequence of lightpaths through either a dedicated or a shared connection-level protection scheme. We propose an auxiliary-graph-based approach to address the placement of regenerators and grooming equipment for both working and backup connections in the network in order to minimize the total equipment cost. Simulation results show that the proposed algorithms outperform lightpath-level protection algorithms, in which each lightpath is protected separately. We also show the performance of connection-level protection under both dedicated and shared protection schemes in terms of the network cost, along with the effect of different cost models on equipment placement and performance for networks with different line rates. The restoration time of dedicated and shared connection-level protection is also investigated.

[1]  Paparao Palacharla,et al.  Survivable Traffic Grooming with Impairment Constraints , 2010, 2010 Proceedings of 19th International Conference on Computer Communications and Networks.

[2]  Arun K. Somani,et al.  Enabling subwavelength level traffic grooming in survivable WDM optical network design , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[3]  Yuxiang Zhai,et al.  QoS-aware RWA algorithms for path-protected DWDM networks , 2007, OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference.

[4]  Wei Wei,et al.  Dynamic lightpath provisioning with signal quality guarantees in survivable translucent optical networks. , 2005, Optics express.

[5]  Xi Yang,et al.  Survivable lightpath provisioning in WDM mesh networks under shared path protection and signal quality constraints , 2005, Journal of Lightwave Technology.

[6]  Paparao Palacharla,et al.  Survivable impairment-aware traffic grooming with dedicated path protection , 2010, 36th European Conference and Exhibition on Optical Communication.

[7]  Biswanath Mukherjee,et al.  Traffic grooming for survivable WDM networks: dedicated protection [Invited] , 2004 .

[8]  Gianpiero Monaco,et al.  On the Complexity of the Regenerator Placement Problem in Optical Networks , 2011, IEEE/ACM Transactions on Networking.

[9]  Biswanath Mukherjee,et al.  Traffic grooming for survivable WDM networks - shared protection , 2003, IEEE J. Sel. Areas Commun..

[10]  I. Tomkos,et al.  An offline impairment aware RWA algorithm with dedicated path protection consideration , 2009, 2009 Conference on Optical Fiber Communication - incudes post deadline papers.

[11]  Seung-Woo Seo,et al.  Regenerator placement algorithms for connection establishment in all-optical networks , 2000, Globecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137).