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Proceedings Paper

Dynamic traffic grooming in interconnected WDM SDH/SONET rings
Author(s): Jie Xu; QingJi Zeng
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Paper Abstract

Recently, wavelength division multiplexing (WDM) technology has been widely employed to increase the capacity of existing SDH/SONET self-healing rings. As wavelengths are no longer such precious resources, SDH/SONET add-drop multiplexers (ADMs) become the dominant cost factor in network deployment. Traffic grooming studies how to intelligently arranging the placement of ADMs on wavelengths to reduce the number of ADMs required to support certain traffic patterns. In this paper, we address dynamic traffic grooming in interconnected WDM unidirectional rings. An optically interconnected dual-homing strategy is adopted to implement optical layer survivability. A genetic algorithm (GA) based approach is proposed for static traffic grooming. Another GA based approach is proposed for combining different topologies to support a given traffic set. Numerical results were reported on ADM savings.

Paper Details

Date Published: 26 July 2001
PDF: 10 pages
Proc. SPIE 4527, Technologies, Protocols, and Services for Next-Generation Internet, (26 July 2001); doi: 10.1117/12.434431
Show Author Affiliations
Jie Xu, Shanghai Jiaotong Univ. (China)
QingJi Zeng, Shanghai Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 4527:
Technologies, Protocols, and Services for Next-Generation Internet
Anura P. Jayasumana; V. Chandrasekar, Editor(s)

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