Load balancing in wavelength-routed optical networks

Fengqing Liu; QingJi Zeng; Xudong Yang; Xu Zhu; Shilin Xiao

doi:10.1117/12.481073

29 August 2002 Load balancing in wavelength-routed optical networks

Fengqing Liu, QingJi Zeng, Xudong Yang, Xu Zhu, Shilin Xiao

Proceedings Volume 4909, Network Design and Management; (2002) https://doi.org/10.1117/12.481073
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

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 N_λ 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.

Citation Download Citation

Fengqing Liu, QingJi Zeng, Xudong Yang, Xu Zhu, and Shilin Xiao "Load balancing in wavelength-routed optical networks", Proc. SPIE 4909, Network Design and Management, (29 August 2002); https://doi.org/10.1117/12.481073

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