Wavelength reservation scheme with switch fabric status in distributed mesh optical networks |
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Authors: | Li-hua Lu Qing-ji Zeng |
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Institution: | (1) State Key Laboratory on Fiber-Optic Local Area Networks and Advanced Optical Communication Systems, Shanghai Jiaotong University, Shanghai, 200240, China |
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Abstract: | A new wavelength reservation scheme is proposed to mitigate the connection setup time and minimize the reconfiguration times
of optical cross-connects (OXCs) for WDM optical networks in this study. In this scheme, we consider the reconfiguration information
of switch fabrics in the signaling protocol, which is 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 the proposed schemes with switch fabrics status have shorter setup time, lower switching ratio as well
as better blocking performance than those of the traditional classic schemes. Moreover, the proposed schemes with SWFS significantly
reduce the number of switch fabrics that need to be reconfigured.
Foundation item: the National Natural Science Foundation of China (Nos. 60632010 and 60572029) and the National High Technology Research and
Development Program (863) of China (No. 2006AA01Z251) |
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Keywords: | optimization distributed lightpath establishment signaling protocols wavelength reservation wavelength-routed networks switch fabrics |
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