Wavelength Reservation Scheme with Switch Fabric Status in Distributed Mesh Optical Networks  

作　　者：陆丽华 曾庆济 

机构地区：[1]State Key Laboratory on Fiber-Optic Local Area Networks and Advanced Optical Communication Systems,Shanghai Jiaotong University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2009年第3期325-330,共6页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China (Nos. 60632010 and 60572029);the National High Technology Research and Development Program (863) of China (No. 2006AA01Z251)

摘　　要：A new wavelength reservation scheme is proposed the reconfiguration times of optical cross-connects （OXCs） for we consider the reconfiguration information of switch fabrics to mitigate the connection setup time and minimize WDM optical networks in this study. In this scheme, 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.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.

关 键 词：OPTIMIZATION distributed lightpath establishment signaling protocols wavelength reservation wavelength-routed networks switch fabrics 

分 类 号：TN929.1[电子电信—通信与信息系统] F832.2[电子电信—信息与通信工程]