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Proceedings Paper

Shared sub-path protection algorithm for WDM mesh networks with traffic grooming capabilities
Author(s): Rongxi He; Haibo Wen; Guangxing Wang; Lemin Li
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Paper Abstract

This paper investigates the problem of dynamically establishing dependable connections in traffic-grooming wavelength division multiplexing (WDM) mesh networks, and proposes a dynamic shared sub-path protection (SSPP) scheme for multi-granularity traffic. To establish a dependable connection, SSPP searches a primary path for each connection request, and then it segments the found path into several equal-length sub-paths, and computes their corresponding backup paths, respectively. In SSPP, if two sub-paths are fiber-disjoint then their backup paths can share backup resources to obtain the optimal spare capacity. Based on dynamic traffic with different load, the performance of SSPP has been investigated via simulations. The results show that SSPP can make the tradeoffs between the resource utilization and the restoration time.

Paper Details

Date Published: 15 April 2004
PDF: 11 pages
Proc. SPIE 5282, Network Architectures, Management, and Applications, (15 April 2004); doi: 10.1117/12.517375
Show Author Affiliations
Rongxi He, Northeastern Univ. (China)
Haibo Wen, Univ. of Electronic Science and Technology of China (China)
Guangxing Wang, Northeastern Univ. (China)
Lemin Li, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 5282:
Network Architectures, Management, and Applications
S. J. Ben Yoo; Kwok-wai Cheung; Yun-Chur Chung; Guangcheng Li, Editor(s)

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