用于光组播交换的无串扰共轭网络
Crosstalk-free Conjugate Networks for Optical Multicast Switching
摘要：
高速光交换网络可以以每秒几个太比特的速率交换光信号。然而，当两个光信号在同一开关元件处交叉时，它们遭受固有串扰问题。为了避免串扰，交换网络中的活动连接必须是节点不相交的。在本文中，我们提出了一个序列的分解和合并操作，称为共轭变换，每个开关元件上执行，以解决这个问题。由这种变换产生的网络称为共轭网络。利用网络的编号方法，证明了如果原网络中的路由分配是链路不相交的，则共轭网络中相应的路由分配也是节点不相交的。因此，传统的无阻塞交换网络可以转换成无串扰的光开关在常规的方式。此外，我们表明，串扰的多播开关也可以从现有的非阻塞多播开关通过相同的共轭变换。
英文摘要：
High-speed photonic switching networks can switch optical signals at the rate of several terabits per second. However, they suffer from an intrinsic crosstalk problem when two optical signals cross at the same switch element. To avoid crosstalk, active connections must be node-disjoint in the switching network. In this paper, we propose a sequence of decomposition and merge operations, called conjugate transformation, performed on each switch element to tackle this problem. The network resulting from this transformation is called conjugate network. By using the numbering-schemes of networks, we prove that if the route assignments in the original network are link-disjoint, their corresponding ones in the conjugate network would be node-disjoint. Thus, traditional nonblocking switching networks can be transformed into crosstalk-free optical switches in a routine manner. Furthermore, we show that crosstalk-free multicast switches can also be obtained from existing nonblocking multicast switches via the same conjugate transformation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
