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In practical optical networks, there is often the same number of wavelengths in a fiber. But if it is not carefully designed, there will be much difference in link load among different fibers, and unnecessary wavelengths will be needed. This paper investigated this load balancing issues to minimize the wavelength requirements. Both Integer Linear Programming (ILP) and heuristic algorithms were presented to solve such a problem in WDM optical networks with or without wavelength-continuity constraints. 相似文献
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IntroductionWith the rapid progress of Optical Add- DropMultiplexer and Optical Cross- Connect( OADM/OXC) technologies,itis becoming possible for car-riers to provide high- speed services such as OC- 48/OC- 1 92 and Gigabit Ethernet transmission chan-nels directly from the optical domain. Line speedsof electrical layer devices such as IP routers andATM switches are continually growing to satisfythe increasing demands of data,as evidenced bythe introduction of line card speeds of OC- … 相似文献
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