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1. 发明申请

US20160241353A1 OPTICAL DATA TRANSMISSION METHOD AND APPARATUS 有权
标题翻译：光学数据传输方法和设备
公开(公告)号：US20160241353A1
公开(公告)日：2016-08-18
申请号：US15028530
申请日：2014-10-10
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人： Paul Daniel WRIGHT , Andrew LORD , Michael Charles PARKER
IPC分类号： H04J14/02
CPC分类号： H04J14/0267 , H04J14/0256 , H04J14/0257 , H04J14/026
摘要： A routing and wavelength assignment method for use in an optical fiber network includes (i) identifying a path between each node pair in the network, (ii) identifying a block of spectral resource within the spectrum band of the identified path of a selected node pair, (iii) calculating a spectrum entropy value of the identified path of the selected node pair based on a logarithm of the ratio of the number of wavelength channels in each of the one or more blocks, to the total number of wavelength channels across the spectrum band, (iv) iterating (ii) and (iii) in respect of each of the paths between each other node pair in the network, until a spectrum entropy value of all the paths between all the node pairs has been calculated, (v) summing the spectrum entropy value of all of the paths between all of the node pairs to obtain a network spectrum entropy value in respect of a network configuration based on the paths between the node pairs, and (vi) determining from the network spectrum entropy value whether a signal carrying a demand through the network is separated from any other signals by a spectral gap sufficient to accommodate a change in the demand to an expected level.
摘要翻译：用于光纤网络的路由和波长分配方法包括：（i）识别网络中每个节点对之间的路径，（ii）识别所选节点对的所识别路径的频谱范围内的频谱资源块，（iii）基于所述一个或多个块中的每个中的每一个中的波长信道的数量的比率与所述频谱中的每个波长信道的总数的对数来计算所选择的节点对的所识别的路径的频谱熵值（iv）对于网络中每个其他节点对之间的每个路径迭代（ii）和（iii），直到已经计算了所有节点对之间的所有路径的频谱熵值，（v）对所有节点对之间的所有路径的频谱熵值求和，基于节点对之间的路径获得关于网络配置的网络频谱熵值，以及（vi）从网络频谱e ntropy值是否通过网络承载需求的信号是否与任何其他信号分离，其频谱间隙足以将需求的变化适应到预期的水平。

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