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Proceedings Paper

Design-survivable WDM networks using a path protection algorithm
Author(s): ZhenJiang Han; Ioannis Lambadaris
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Paper Abstract

ABSTRACT A major challenge of survivable wavelength-division multiplexing (WDM) network design is deciding how much spare capacity there should be and where it should be placed, so that interrupted traffic can be recovered within a very short time. Protection, including link protection and path protection, is the main way to solve this problem and to prevent huge losses. Link protection and dedicated path protection currently dominate this fault recovery field. Both have short recovery time and low resource efficiency. Shared path protection is also resource efficient with acceptable recovery time. More and more industries recognize that shared path protection is the trend and are trying to find good methods to design shared protection paths. This paper proposes a new efficient algorithm-Predetermined Protection Path Design (PPD), which can design maximum sharing protection paths. We describe in detail how PPD works, and compare it with the existing protection algorithms. Simulation results show that PPD can design maximum sharing protection paths and achieve 28% better resource efficiency than dedicated path protection as well as 12% better resource efficiency than the current shared path protection algorithms, with acceptable recovery time. PPD also has good generality, scalability and restorability.

Paper Details

Date Published: 9 September 2002
PDF: 8 pages
Proc. SPIE 4910, Optical Networking II, (9 September 2002); doi: 10.1117/12.482438
Show Author Affiliations
ZhenJiang Han, Carleton Univ. (Canada)
Ioannis Lambadaris, Carleton Univ. (Canada)

Published in SPIE Proceedings Vol. 4910:
Optical Networking II
Shizhong Xie; Chunming Qiao; Yun Chur Chung, Editor(s)

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