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| On Protecting WDM Networks with Valiant Load Balancing under Hose Uncertain Traffic Model |
| Dai Rui; Li Le-min; Wang Sheng; Zhang Xiao-ning |
| Key Lab of Broadband Optical Fiber Transmission and Communication Networks, UESTC, Chengdu 610054, China |
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Abstract In this paper, the issue of robust protection is investigated in WDM networks under the hose uncertain traffic model. Based on Valiant Load Balancing (VLB) and shared protection, a segment protection algorithm called VLB-SSP (VLB-based Shared Segment Protection) is proposed. The algorithm provisions wavelengths in terms of the shared protection, and splits the protection loops so as to meet the requirement of recovery time. Simulation results indicate that VLB-SSP can not only achieve a lower cost budget but also perform a faster recovery in contrast to dedicated-path protection VLB algorithm and uniform Load Balancing protection scheme.
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Received: 26 December 2008
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2009, Vol. 31 
