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Proceedings Paper

BLE protection scheme for light-trail WDM mesh networks
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Paper Abstract

Light-trail is a solution to providing high resource utilization and sub-wavelength support [1]. A light-trail is a multi-point light-path, such that multiple users can take part in communication along the trail, through time (differentiated) non-overlapping connections. This multi-point flow model leads to a new set of problems in the area of protecting and restoring light-trail based networks. Conventional link protection which just protects the existed connection in the light-trail at the time of the failure is not sufficient for light-trails because of the potential of having multiple possible source-destination pairs in the same trail over time. The fact is demonstrated and explained detailedly in [4]. In this paper, a novel protection mechanism is proposed for light-trail WDM mesh network, which is Backup Light-trail Expending scheme. Subsequently the performance of this scheme is evaluated and compared to conventional Connection Dedicated Protection Scheme. Numerical results obtained by simulation indicate that, Backup Light-trail Expending Scheme has a faster restoration time and better wavelength utilization.

Paper Details

Date Published: 19 November 2007
PDF: 8 pages
Proc. SPIE 6784, Network Architectures, Management, and Applications V, 67840X (19 November 2007);
Show Author Affiliations
Junwei Xing, Beijing Univ. of Posts and Telecommunications (China)
Hongxiang Wang, Beijing Univ. of Posts and Telecommunications (China)
Yuefeng Ji, Beijing Univ. of Posts and Telecommunications (China)

Published in SPIE Proceedings Vol. 6784:
Network Architectures, Management, and Applications V
Jianli Wang; Gee-Kung Chang; Yoshio Itaya; Herwig Zech, Editor(s)

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