Research Article
Minimizing Reconfiguration Times of Optical Cross- Connects in Distributed Lightpath Establishment
@INPROCEEDINGS{10.1109/CHINACOM.2007.4469427, author={Lihua Lu and Qingji Zeng and Yanna Hao}, title={Minimizing Reconfiguration Times of Optical Cross- Connects in Distributed Lightpath Establishment}, proceedings={2nd International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2008}, month={3}, keywords={distributed lightpath establishment optimization signaling protocols switch fabrics wavelength reservation wavelength-routed networks}, doi={10.1109/CHINACOM.2007.4469427} }- Lihua Lu
Qingji Zeng
Yanna Hao
Year: 2008
Minimizing Reconfiguration Times of Optical Cross- Connects in Distributed Lightpath Establishment
CHINACOM
IEEE
DOI: 10.1109/CHINACOM.2007.4469427
Abstract
A new scheme to mitigate the connection setup time and minimize the reconfiguration times of optical crossconnects (OXCs) for WDM optical networks is proposed in this study. In this new scheme, we consider the reconfiguration information of switch fabrics in the signaling protocol, which designated as the signaling with switch fabric status (SWFS). Distributed reservation algorithms will reserve the wavelength with minimum of reconfiguration times of OXCs along the route. Simulation results indicate that our proposed schemes with switch fabrics status have the shorter setup time, lower switching ratio as well as better blocking performance than those of the classic schemes. Especially, the reservation schemes all have constant switching ratio under the environment on different switching delay of OXCs or different requests. Moreover, the proposed schemes with SWFS significantly reduce the number of switch fabrics that need to be reconfigured.