Dynamic traffic grooming in interconnected WDM SDH/SONET rings

被引：3
|
作者：
Xu, J [1 ]
Zeng, QJ [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Ctr Broadband Opt Networking Technol, Shanghai 200030, Peoples R China
来源：
TECHNOLOGIES, PROTOCOLS, AND SERVICES FOR NEXT-GENERATION INTERNET | 2001年 / 4527卷
关键词：
WDM; SDH/SONET ADMs; traffic grooming; genetic algorithm; topology design;
D O I：
10.1117/12.434431
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
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.
引用
收藏
页码：177 / 186
页数：10
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