TRA: an efficient dynamic resource assignment algorithm for MCF-based SS-FONs
TRA: an efficient dynamic resource assignment algorithm for MCF-based SS-FONs
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DOI：
10.1364/jocn.455426
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发表时间：
2022-07
影响因子：
5
通讯作者：
Shrinivas Petale;Juzi Zhao;S. Subramaniam
中科院分区：
文献类型：
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作者：
Shrinivas Petale;Juzi Zhao;S. Subramaniam
服务提供可以通过具有多芯光纤的频谱空间灵活的光网络（SS-FON）来增强;然而，芯间串扰（XT）是使保持传输质量（QoT）和资源分配的问题复杂化的主要损害。调制格式（MF）的选择由于其独特的XT灵敏度而进一步增加了复杂性。路由、调制、核心和频谱分配（RMCSA）问题必须仔细选择资源以利用可用容量，同时满足期望的QoT。在本文中，我们提出了一个RMCSA算法称为tridental资源分配（TRA）算法的透明SS-FONs，其变种，透明性感知TRA（TaTRA），半透明SS-FONs。TRA平衡了动态资源分配下影响网络性能的三个不同因素。我们考虑半透明网络与灵活的再生和调制和频谱转换。我们的资源分配方法包括离线网络规划组件计算路径优先级和在线/动态配置组件分配资源。在实际网络场景中进行的大量仿真实验表明，TRA和TaTRA显着降低带宽阻塞概率在某些情况下，由几个数量级。
Service provisioning can be enhanced with spectrally spatially flexible optical networks (SS-FONs) with multicore fibers; however, intercore crosstalk (XT) is a dominant impairment that complicates the problem of maintaining the quality of transmission (QoT) and resource allocation. The selection of modulation formats (MFs), due to their unique XT sensitivities, further increases the complexity. The routing, modulation, core, and spectrum assignment (RMCSA) problem must select the resources carefully to exploit the available capacity while meeting the desired QoT. In this paper, we propose an RMCSA algorithm called the tridental resource assignment (TRA) algorithm for transparent SS-FONs, and its variant, translucency-aware TRA (TaTRA), for translucent SS-FONs. TRA balances three different factors that affect network performance under dynamic resource allocation. We consider translucent networks with flexible regeneration and with and without modulation and spectrum conversion. Our resource assignment approach includes both an offline network planning component to calculate path priorities and an online/dynamic provisioning component to allocate resources. Extensive simulation experiments performed in realistic network scenarios indicate that TRA and TaTRA significantly reduce the bandwidth blocking probability by several orders of magnitude in some cases.