A traffic grooming algorithm considering differentiated shared protection in WDM mesh networks

Bing Xiang; Hongfang Yu; Jiping Jia; Lemin Li; Hongbing Lou

doi:10.1117/12.573653

8 February 2005 A traffic grooming algorithm considering differentiated shared protection in WDM mesh networks

Bing Xiang, Hongfang Yu, Jiping Jia, Lemin Li, Hongbing Lou

Proceedings Volume 5626, Network Architectures, Management, and Applications II; (2005) https://doi.org/10.1117/12.573653
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

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.

Citation Download Citation

Bing Xiang, Hongfang Yu, Jiping Jia, Lemin Li, and Hongbing Lou "A traffic grooming algorithm considering differentiated shared protection in WDM mesh networks", Proc. SPIE 5626, Network Architectures, Management, and Applications II, (8 February 2005); https://doi.org/10.1117/12.573653

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