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Proceedings Paper

A traffic grooming algorithm considering differentiated shared protection in WDM mesh networks
Author(s): Bing Xiang; Hongfang Yu; Jiping Jia; Lemin Li; Hongbing Lou
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Paper Abstract

To keep pace with the trend of service diversity in communication, providing differentiated reliability services become a focus topic of WDM networking. While the wavelength has transmission capacity at gigabit per second rates, the network may be required to support traffic connections at much lower rates than the full wavelength capacity. In addition, for networks of practical size, the number of available wavelengths is still much lower than that of source to destination connections requests. Thus the solution lies in efficiently grooming the low rate traffics onto the wavelength channels. Traffic grooming can aggregate low-rate connections onto high-capacity wavelength channels, also called lightpaths, to make efficient use of the wavelength capacity. Considering both the survivability for differentiated reliability services and traffic grooming, a differentiated shared protection algorithm called PSPTG, which means Partial Shared-path Protection algorithm supporting Traffic Grooming, is proposed. In this algorithm, a shared protection scheme of partial lightpath based on link reliability is presented to meet the requirements of reliability and bandwidth of connections. Simulation results show that the algorithm is efficient in terms of resources utilization by routing more connections.

Paper Details

Date Published: 8 February 2005
PDF: 6 pages
Proc. SPIE 5626, Network Architectures, Management, and Applications II, (8 February 2005); doi: 10.1117/12.573653
Show Author Affiliations
Bing Xiang, Univ. of Electronic Science and Technology of China (China)
Hongfang Yu, Univ. of Electronic Science and Technology of China (China)
Jiping Jia, Sichuan Mobile Communication Co., Ltd. (China)
Lemin Li, Univ. of Electronic Science and Technology of China (China)
Hongbing Lou, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 5626:
Network Architectures, Management, and Applications II
S. J. Ben Yoo; Gee-Kung Chang; Guangcheng Li; Kwok-wai Cheung, Editor(s)

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