A routing modulation and spectrum assignment algorithm for semi-filterless elastic optical networks

IF 1.9 4区计算机科学 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS Optical Switching and Networking Pub Date : 2023-11-03 DOI:10.1016/j.osn.2023.100764

Junling Yuan , Xuhong Li , Qikun Zhang , Jing Zhang , Suping Li

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Abstract

Development of 5G/F5G technology leads to massive applications accessing to backbone networks, which requires the backbone networks to be upgraded. Semi-filterless elastic optical network (semi-FEON) is a suitable technology to cheaply and gradually upgrade backbone networks. In semi-FEON, routing, modulation and spectrum assignment (RMSA) problem is one of the key issues. In this paper, we study the dynamic RMSA problem in semi-FEON and propose an RMSA algorithm. The algorithm includes three innovations: a K-shortest-subnet-paths (KSSP) algorithm is designed to search candidate paths in semi-FEON, a load-balancing-least-resources (LBLR) policy is introduced to re-sort the candidate paths, and a maximum-occupied-neighbors (MON) rule is proposed to assign spectrum resources to connection requests in semi-FEON. Simulation results show that the proposed KSSP-LBLR-MON algorithm outperforms the existing works in term of bandwidth blocking probability. Concretely, the improvement ratio is greater than 59.98% and 66.64% in German-Net and Henan-Net, respectively.

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一种半无滤波器弹性光网络的路由调制和频谱分配算法

5G/F5G技术的发展导致大量应用接入骨干网络，这需要对骨干网络进行升级。半无滤波器弹性光网络（Semi-FEON）是一种适合廉价、逐步升级骨干网络的技术。在半FEON中，路由、调制和频谱分配（RMSA）问题是关键问题之一。本文研究了半FEON中的动态RMSA问题，并提出了一种RMSA算法。该算法包括三个创新：设计了一种K-shortest-subnet-paths（KSSP）算法来搜索半FEON中的候选路径，引入了负载平衡最小资源（LBLR）策略来对候选路径进行重新排序，并提出了一种最大占用邻居（MON）规则来为半FEON的连接请求分配频谱资源。仿真结果表明，所提出的KSSP-LBLR-MON算法在带宽阻塞概率方面优于现有算法。具体来说，德国网和河南网的改进率分别大于59.98%和66.64%。

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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 Optical Switching and Networking considers high-quality, original, and unpublished contributions addressing all aspects of optical and opto-electronic networks.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

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