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Proceedings Paper

A spectrum-scan routing scheme in flexible optical networks
Author(s): Yang Liu; Nan Hua; Xin Wan; Xiaoping Zheng; Zhigang Liu
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Paper Abstract

The routing and spectrum assignment (RSA) is one of the key problems in flexible optical networks. When in a gridless fashion, the shortest-path RSA algorithms have exponential computational complexity, and are thus not suitable to be employed in real networks. On the other hand, today most optical components cannot support fully gridless tunability, which also limits the application of gridless RSA schemes. In this paper, we propose a novel grid-based spectrum-scan routing (SSR) scheme in flexible optical networks. The SSR scheme achieves optimal routing with a polynomial computational complexity. Compared with other RSA schemes, SSR has shorter computation time, lower blocking probability, and higher resource utilization.

Paper Details

Date Published: 15 December 2011
PDF: 6 pages
Proc. SPIE 8310, Network Architectures, Management, and Applications IX, 83100B (15 December 2011); doi: 10.1117/12.904013
Show Author Affiliations
Yang Liu, Tsinghua Univ. (China)
Nan Hua, Tsinghua Univ. (China)
Xin Wan, Tsinghua Univ. (China)
Xiaoping Zheng, Tsinghua Univ. (China)
Zhigang Liu, China Institute Electronic Equipment System Engineering (China)

Published in SPIE Proceedings Vol. 8310:
Network Architectures, Management, and Applications IX
Lena Wosinska; Ken-ichi Sato; Jing Wu; Jie Zhang, Editor(s)

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