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Proceedings Paper

Load balancing in wavelength-routed optical networks
Author(s): Fengqing Liu; QingJi Zeng; Xudong Yang; Xu Zhu; Shilin Xiao
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Paper Abstract

In this paper, we discuss the load balancing issues for wavelength-routed optical networks. After a definition of load balancing factor, which evaluates the fairness of the wavelength usage on each link, a new Integer Linear Program (ILP) formulation is proposed for routing and wavelength assignment for WP and VWP-RWA scheme. As the ILP is time-consuming for large-scale networks, an effective heuristic algorithm is given. In this paper, we use three metrics to quantify the performance improvement by our method: Load balancing factor FF, wavelength requirement Nλ and wavelength reusability ρ. In both WP and VWP schemes, our load balancing algorithm achieves much better performance than Fixed-shortest-path and alternate-shortest-paths routing algorithms.

Paper Details

Date Published: 29 August 2002
PDF: 9 pages
Proc. SPIE 4909, Network Design and Management, (29 August 2002); doi: 10.1117/12.481073
Show Author Affiliations
Fengqing Liu, Shanghai Jiao Tong Univ. (China)
QingJi Zeng, Shanghai Jiao Tong Univ. (China)
Xudong Yang, Shanghai Jiao Tong Univ. (China)
Xu Zhu, Shanghai Jiao Tong Univ. (China)
Shilin Xiao, Shanghai Jiao Tong Univ. (China)


Published in SPIE Proceedings Vol. 4909:
Network Design and Management
Qian Mao; Shoa-Kai Liu; Kwok-wai Cheung, Editor(s)

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