Crosstalk-aware routing, spectrum, and core assignment based on AoD nodes in SDM-EONs with bidirectional multicore fibers

IF 1.9 4区计算机科学 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS

Optical Switching and Networking Pub Date : 2022-02-01 DOI:10.1016/j.osn.2021.100647

Shan Yin, Yidong Chen, Sicong Ding, Zhidong Zhang, Shanguo Huang

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引用次数: 7

Abstract

Inter-core crosstalk causes severe signal impairment in Space Division Multiplexing Elastic Optical Networks (SDM-EON) with multi-core fibre (MCF). In order to mitigate the influence of crosstalk between cores, bidirectional MCF is used. SDM-EON has dramatically increased the network bandwidth and is the mainstream trend of future communications, but the overall cost of such an SDM-EON will increase with traditional hard-connected node structures. On-demand architecture node (AoD) in SDM-EON can dynamically select modes based on incoming services with less cost than traditional node. Although bidirectional multi-core optical fibres can mitigate the impact of crosstalk between adjacent cores, it is still necessary to develop appropriate routing, spectrum, and core assignment strategies to reduce the impact of crosstalk. In addition, the resource allocation strategy will affect the type of on-demand architecture node. This paper develops a core selection method for classified services on a multi-dimensional optical network with bidirectional multi-core fibres. It also proposes an on-demand architecture node suitable for this services classification scheme. According to the proposed core classification method, a routing and resource allocation algorithm that considers the impact of spectrum fragmentation and crosstalk between cores is proposed. The final simulation results prove that the algorithm is beneficial to improve network performance.

查看原文本刊更多论文

双向多芯光纤sdm - eon中基于AoD节点的串扰感知路由、频谱和核心分配

在多芯光纤空分复用弹性光网络(SDM-EON)中，芯间串扰会造成严重的信号损伤。为了减轻芯间串扰的影响，采用了双向MCF。SDM-EON极大地提高了网络带宽，是未来通信的主流趋势，但由于传统的硬连接节点结构，这种SDM-EON的总体成本会增加。SDM-EON中的按需架构节点(AoD)可以根据传入的服务动态选择模式，其成本比传统节点低。虽然双向多芯光纤可以减轻相邻芯间串扰的影响，但仍有必要制定适当的路由、频谱和芯分配策略来减少串扰的影响。此外，资源分配策略也会影响按需架构节点的类型。提出了一种双向多芯光纤多维光网络分类业务的芯选择方法。提出了适合该服务分类方案的按需架构节点。根据所提出的核心分类方法，提出了一种考虑频谱碎片和核心间串扰影响的路由和资源分配算法。最后的仿真结果证明了该算法有利于提高网络性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Switching and Networking COMPUTER SCIENCE, INFORMATION SYSTEMS-OPTICS

CiteScore

5.20

自引率

18.20%

发文量

审稿时长

77 days

期刊介绍： Optical Switching and Networking (OSN) is an archival journal aiming to provide complete coverage of all topics of interest to those involved in the optical and high-speed opto-electronic networking areas. The editorial board is committed to providing detailed, constructive feedback to submitted papers, as well as a fast turn-around time. Optical Switching and Networking considers high-quality, original, and unpublished contributions addressing all aspects of optical and opto-electronic networks. Specific areas of interest include, but are not limited to: • Optical and Opto-Electronic Backbone, Metropolitan and Local Area Networks • Optical Data Center Networks • Elastic optical networks • Green Optical Networks • Software Defined Optical Networks • Novel Multi-layer Architectures and Protocols (Ethernet, Internet, Physical Layer) • Optical Networks for Interet of Things (IOT) • Home Networks, In-Vehicle Networks, and Other Short-Reach Networks • Optical Access Networks • Optical Data Center Interconnection Systems • Optical OFDM and coherent optical network systems • Free Space Optics (FSO) networks • Hybrid Fiber - Wireless Networks • Optical Satellite Networks • Visible Light Communication Networks • Optical Storage Networks • Optical Network Security • Optical Network Resiliance and Reliability • Control Plane Issues and Signaling Protocols • Optical Quality of Service (OQoS) and Impairment Monitoring • Optical Layer Anycast, Broadcast and Multicast • Optical Network Applications, Testbeds and Experimental Networks • Optical Network for Science and High Performance Computing Networks