多波段弹性光网络中传输频带分配的动态启发式算法

IF 3.1 4区计算机科学 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS

Optical Switching and Networking Pub Date : 2025-09-28 DOI:10.1016/j.osn.2025.100825

Felipe Cézar Maia e Silva, Danilo de Oliveira Melo, José Roberto do Nascimento Arcanjo, Helder Alves Pereira

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引用次数: 0

摘要

针对多波段弹性光网络，提出了三种动态传输频带分配启发式算法。为此，考虑了涉及三到五个传输波段的五种情况。在光放大器中产生的被放大的自发发射噪声被认为是物理层损伤。考虑到文献中三种著名的拓扑结构，从连接阻塞概率和每个传输频带中网络可接受连接的分布来分析网络性能。结果表明，在所分析的所有场景中，所提出的启发式方法在连接阻塞概率方面优于文献中比较和可用的启发式方法。重要的是要强调，在分配过程中必须考虑传输频带的顺序，因此，根据所提出的启发式，在分析的一个场景中，性能差异可能高达76.5个百分点。

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Dynamic heuristics for transmission band assignment in multiband elastic optical networks

In this paper, three dynamic transmission band assignment heuristics are proposed for multiband elastic optical networks. For that, five scenarios are considered involving three to five transmission bands. The amplified spontaneous emission noise, generated in the optical amplifiers, is considered as a physical layer impairment. The network performance is analyzed in terms of connection blocking probability and distribution of network accepted connections in each of the transmission bands, considering three well-known topologies in the literature. The results show that the proposed heuristics outperform the heuristics compared and available in the literature, in terms of connection blocking probability, in all scenarios analyzed. It is important to highlight that the order of the transmission bands must be taken into account during the assignment process so that, depending on the proposed heuristic, the difference in performance can be up to 76.5 percentage points in one of the scenarios analyzed.

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 Optical Switching and Networking considers high-quality, original, and unpublished contributions addressing all aspects of optical and opto-electronic networks.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