Performance evaluation of distributed wavelength assignment in WDM optical networks

Tomohiro Hashiguchi; Xi Wang; Hiroyuki Morikawa; Tomonori Aoyama

doi:10.1117/12.520462

15 April 2004 Performance evaluation of distributed wavelength assignment in WDM optical networks

Tomohiro Hashiguchi, Xi Wang, Hiroyuki Morikawa, Tomonori Aoyama

Proceedings Volume 5282, Network Architectures, Management, and Applications; (2004) https://doi.org/10.1117/12.520462
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

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.

Citation Download Citation

Tomohiro Hashiguchi, Xi Wang, Hiroyuki Morikawa, and Tomonori Aoyama "Performance evaluation of distributed wavelength assignment in WDM optical networks", Proc. SPIE 5282, Network Architectures, Management, and Applications, (15 April 2004); https://doi.org/10.1117/12.520462

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