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Title: QoS multicast tree construction in IP/DWDM optical internet by bio-inspired algorithms
Authors: Cheng, H
Wang, X
Yang, S
Huang, M
Cao, J
Keywords: Optical Internet;QoS;Multicast;Ant colony optimization;Artificial immune algorithm
Issue Date: 2010
Publisher: Elsevier Ltd.
Citation: Journal of Network and Computer Applications, 33(4): 512 - 522, Jul 2010
Abstract: In this paper, two bio-inspired Quality of Service (QoS) multicast algorithms are proposed in IP over dense wavelength division multiplexing (DWDM) optical Internet. Given a QoS multicast request and the delay interval required by the application, both algorithms are able to find a flexible QoS-based cost suboptimal routing tree. They first construct the multicast trees based on ant colony optimization and artificial immune algorithm, respectively. Then a dedicated wavelength assignment algorithm is proposed to assign wavelengths to the trees aiming to minimize the delay of the wavelength conversion. In both algorithms, multicast routing and wavelength assignment are integrated into a single process. Therefore, they can find the multicast trees on which the least wavelength conversion delay is achieved. Load balance is also considered in both algorithms. Simulation results show that these two bio-inspired algorithms can construct high performance QoS routing trees for multicast applications in IP/DWDM optical Internet.
Description: Copyright @ Elsevier Ltd. All rights reserved.
ISSN: 1084-8045
Appears in Collections:Computer Science
Dept of Computer Science Research Papers

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