Mr. Junwei Xing Profile

Junwei Xing

at Beijing Univ of Posts and Telecommunications

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Proceedings Article | 19 November 2007 Paper

BLE protection scheme for light-trail WDM mesh networks

Junwei Xing, Hongxiang Wang, Yuefeng Ji

Proceedings Volume 6784, 67840X (2007) https://doi.org/10.1117/12.742552

KEYWORDS: Networks, Wavelength division multiplexing, Network architectures, Computer simulations, Optical fibers, Sodium, Databases, Optical communications, Switching, Multiplexing

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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.

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