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A New Routing Algorithm Based on Integrated Grooming Auxiliary Graph in Multi-granularity Optical Networks

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6 Author(s)
Weigang Hou ; Coll. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China ; Lei Guo ; Xingwei Wang ; Jiannong Cao
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In this paper, we study the waveband switching for wavelength-level demands and the traffic grooming for sub-wavelength-level demands in multi-granularity optical networks and propose a new routing algorithm called multi-granularity grooming based on Integrated Grooming Auxiliary Graph (MG-IGAG) to save the cost by reducing the number of switching ports in optical-cross connects. In MG-IGAG, we develop the integrated grooming auxiliary graph (IGAG) that includes a Wavelength Integrated Auxiliary Graph (WIAG) and a wave-Band Integrated Auxiliary Graph (BIAG) to groom the sub-wavelength-level and wavelength-level demands, respectively. Simulation results show that the performance of MG-IGAG can obtain significant improvement than previous algorithms.

Published in:

INC, IMS and IDC, 2009. NCM '09. Fifth International Joint Conference on

Date of Conference:

25-27 Aug. 2009