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Proceedings Paper

Performance evaluation of distributed wavelength assignment in WDM optical networks
Author(s): Tomohiro Hashiguchi; Xi Wang; Hiroyuki Morikawa; Tomonori Aoyama
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Paper Abstract

In WDM wavelength routed networks, prior to a data transfer, a call setup procedure is required to reserve a wavelength path between the source-destination node pairs. A distributed approach to a connection setup can achieve a very high speed, while improving the reliability and reducing the implementation cost of the networks. However, along with many advantages, several major challenges have been posed by the distributed scheme in how the management and allocation of wavelength could be efficiently carried out. In this thesis, we apply a distributed wavelength assignment algorithm named priority based wavelength assignment (PWA) that was originally proposed for the use in burst switched optical networks to the problem of reserving wavelengths of path reservation protocols in the distributed control optical networks. Instead of assigning wavelengths randomly, this approach lets each node select the “safest” wavelengths based on the information of wavelength utilization history, thus unnecessary future contention is prevented. The simulation results presented in this paper show that the proposed protocol can enhance the performance of the system without introducing any apparent drawbacks.

Paper Details

Date Published: 15 April 2004
PDF: 12 pages
Proc. SPIE 5282, Network Architectures, Management, and Applications, (15 April 2004); doi: 10.1117/12.520462
Show Author Affiliations
Tomohiro Hashiguchi, Univ. of Tokyo (Japan)
Xi Wang, Univ. of Tokyo (Japan)
Hiroyuki Morikawa, Univ. of Tokyo (Japan)
Tomonori Aoyama, Univ. of Tokyo (Japan)


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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