ASC-revision-2.pdf (123.4 kB)
Download file

A multipopulation parallel genetic simulated annealing-based QoS routing and wavelength assignment integration algorithm for multicast in optical networks

Download (123.4 kB)
journal contribution
posted on 03.11.2009, 15:28 by Hui Cheng, Xingwei Wang, Shengxiang Yang, Min Huang
In this paper, we propose an integrated Quality of Service (QoS) routing algorithm for optical networks. Given a QoS multicast request and the delay interval specified by users, the proposed algorithm can find a flexible-QoS-based cost suboptimal routing tree. The algorithm first constructs the multicast tree based on the multipopulation parallel genetic simulated annealing algorithm, and then assigns wavelengths to the tree based on the wavelength graph. In the algorithm, routing and wavelength assignment are integrated into a single process. For routing, the objective is to find a cost suboptimal multicast tree. For wavelength assignment, the objective is to minimize the delay of the multicast tree, which is achieved by minimizing the number of wavelength conversion. Thus both the cost of multicast tree and the user QoS satisfaction degree can approach the optimal. Our algorithm also considers load balance. Simulation results show that the proposed algorithm is feasible and effective. We also discuss the practical realization mechanisms of the algorithm.

History

Citation

Applied Soft Computing, 2009, 9 (2), pp. 677-684.

Published in

Applied Soft Computing

Publisher

Elsevier

issn

1568-4946

Copyright date

2009

Available date

03/11/2009

Publisher version

http://www.sciencedirect.com/science/article/pii/S1568494608001397

Language

en

Usage metrics

Categories

Keywords

Exports