A restoration method independent of failure location in all-optical networks

In this paper, a simple and fast restoration method independent of failure location in all-optical networks is proposed. The proposed method uses a single fixed restoration wavelength for any link failure and employs edge-disjoint path restoration (DPR). The restoration process is triggered just after failure detection without the need to identify failure location and accelerated by a parallel crossconnection algorithm. Since fixed wavelength transmitters can only be placed at nodes, the node cost is less than counterparts with tunable wavelength transmitters. Also, transmission cost is only slightly increased because the wavelength requirements in the proposed method are similar to the ones using tunable restoration wavelengths.

[1]  S. Ramamurthy,et al.  Survivable WDM Mesh Networks, Part II-Restoration , 1999 .

[2]  Biswanath Mukherjee,et al.  Survivable WDM mesh networks. II. Restoration , 1999, 1999 IEEE International Conference on Communications (Cat. No. 99CH36311).

[3]  R.W. Tkach,et al.  Fast restoration in a mesh network of optical cross-connects , 1999, OFC/IOOC . Technical Digest. Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication.

[4]  S. Baroni,et al.  Wavelength requirements in arbitrarily connected wavelength-routed optical networks , 1997 .

[5]  Mari Maeda.  Management and control of transparent optical networks , 1998, IEEE J. Sel. Areas Commun..

[6]  K. Struyve,et al.  Design and evaluation of an accelerated ATM backup virtual path recovery protocol , 1997, IEEE ATM '97 Workshop Proceedings (Cat. No.97TH8316).

[7]  Ken-ichi Sato,et al.  Optical Path Accommodation Designs Applicable to Large Scale Networks , 1995 .

[8]  Satoru Okamoto.  Photonic transport network architecture and OA&M technologies to create large-scale robust networks , 1998, IEEE J. Sel. Areas Commun..

[9]  S. Baroni,et al.  Analysis and design of resilient multifiber wavelength-routed optical transport networks , 1999 .

[10]  Pierre A. Humblet,et al.  Models of Blocking Probability in All-Optical Networks with and Without Wavelength Changers , 1995, IEEE J. Sel. Areas Commun..

[11]  Filip De Turck,et al.  Dimensioning of survivable WDM networks , 1998, IEEE J. Sel. Areas Commun..