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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 2 — Feb. 1, 2010
  • pp: 142–145

Extending path computation element for lightpath restoration in wavelength-switched optical networks

Lianxing Hou, Yueming Lu, Junhua Wang, Yuefeng Ji, and Yiqiang Hua  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 2, pp. 142-145 (2010)


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Abstract

Current generalized multi-protocol label switching (GMPLS) standards do not include adequate models for wavelength-switched optical networks (WSON) in recovery mechanisms. In this letter, GMPLS/path computation element (PCE) extensions are applied for the restoration of the lightpaths disrupted by collision or optical impairment. A reserved deection routing scheme is proposed to achieve fast restoration. It uses the expanded PCE component to compute and assign the backup paths for lightpath recovery. Numerical results demonstrate that this scheme is effective and low cost.

© 2010 Chinese Optics Letters

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(060.4261) Fiber optics and optical communications : Networks, protection and restoration

Citation
Lianxing Hou, Yueming Lu, Junhua Wang, Yuefeng Ji, and Yiqiang Hua, "Extending path computation element for lightpath restoration in wavelength-switched optical networks," Chin. Opt. Lett. 8, 142-145 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-2-142


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