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Optimizing ROADM configuration in WDM networks

机译:在WDM网络中优化ROADM配置

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Wavelength Switched Optical Networks (WSONs) have been designed to take advantage of all optical switching fabrics with a high level of automation and efficiency. Therein, the Wavelength Selective Switches (WSS) represent the core switching elements with a technology enabling multi-degree Reconfigurable Optical Add/Drop Multiplexers (ROADM) architectures with colorless, directionless and contentionless (CDC) switching. With the use of CDC ROADMs, WSON nodes are asymmetrical with respect to their switching capabilities. Firstly, the selection of the restricted switching capabilities plays a critical role in order to maximize, e.g., the grade of service subject to a given number of ports. Secondly, the asymmetry depends on the port size of WSS. In this paper, we propose an optimization model in order to establish the best ROADM switching connectivity to maximize the grade of service, for a given number of ports. We show that the grade of service can vary significantly, up to 30%, depending on the switching connectivity.
机译:波长交换光网络(WSON)旨在利用所有的光交换结构,并具有高度的自动化和效率。其中,波长选择开关(WSS)代表核心开关元件,其技术可实现具有无色,无方向和无竞争(CDC)切换的多级可重配置光分插复用器(ROADM)架构。通过使用CDC ROADM,WSON节点的交换能力是不对称的。首先,受限交换能力的选择起着至关重要的作用,以便最大化例如服从给定数量的端口的服务等级。其次,不对称性取决于WSS的端口大小。在本文中,我们提出了一个优化模型,以便为给定数量的端口建立最佳的ROADM交换连接,以最大程度地提高服务等级。我们显示,服务等级可以有很大的不同,最高可达30%,具体取决于交换连接。

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