Journal of Optical Communications and Networking最新文献_第2页

Experimental investigation on the fundamental physical-layer capabilities for converged metro–access architectures using coherent transceivers 基于相干收发器的融合城域接入体系结构基本物理层性能的实验研究

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-07-02 DOI: 10.1364/JOCN.558563

Giuseppe Rizzelli;Mariacristina Casasco;Emilio Riccardi;Annachiara Pagano;Valter Ferrero;Roberto Gaudino

引用次数: 0

Demonstration of an SDN-enabled, resilient, rate-adaptable hybrid fiber/outdoor FSO/mmWave transport for a 6G X-haul architecture 为6G X-haul架构演示支持sdn、弹性、速率自适应的混合光纤/室外FSO/毫米波传输

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-06-30 DOI: 10.1364/JOCN.551852

E. Kyriazi;P. Toumasis;G. Brestas;P. Kourelias;A. Ntanos;A. Stathis;G. Poulopoulos;D. Diakakis;I. Mesogiti;E. Theodoropoulou;G. Lymperopoulos;G. Giannoulis;J. Sterle;D. Apostolopoulos;H. Avramopoulos

{"title":"Demonstration of an SDN-enabled, resilient, rate-adaptable hybrid fiber/outdoor FSO/mmWave transport for a 6G X-haul architecture","authors":"E. Kyriazi;P. Toumasis;G. Brestas;P. Kourelias;A. Ntanos;A. Stathis;G. Poulopoulos;D. Diakakis;I. Mesogiti;E. Theodoropoulou;G. Lymperopoulos;G. Giannoulis;J. Sterle;D. Apostolopoulos;H. Avramopoulos","doi":"10.1364/JOCN.551852","DOIUrl":"https://doi.org/10.1364/JOCN.551852","url":null,"abstract":"The transition to 6G networks will necessitate advanced infrastructures to handle massive device integration, exponential data growth, and low latency requirements. The proposed 6G architecture will integrate diverse technologies, such as free space optical (FSO) and mmWave, into the existing fiber infrastructure. This work demonstrates a hybrid 6G X-haul solution consisting of 10 km fiber/100 m FSO/5 m mmWave that employs a software-defined network as an interface platform to improve network resilience and flexibility in 6G networks. For this purpose, real-time traffic management and dynamic link switching operate within 600 µs, interacting with the heterogeneous physical layers. This enables the system to adapt to changing conditions and failures, ensuring continuous and uninterrupted connectivity. Experimental results proved that this dynamic software-defined networking-based topology can manage high-capacity data rates of up to 60 Gbps while supporting adaptive modulation schemes below hard decision-forward error correction.","PeriodicalId":50103,"journal":{"name":"Journal of Optical Communications and Networking","volume":"17 7","pages":"638-647"},"PeriodicalIF":4.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Introduction to the ECOC 2024 Special Edition ECOC 2024特别版简介

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-06-30 DOI: 10.1364/JOCN.570945

Andrew Lord

引用次数: 0

Reinforcement learning for dynamic resource allocation in optical networks: hype or hope? 光网络中动态资源分配的强化学习：炒作还是希望？

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-06-27 DOI: 10.1364/JOCN.559990

Michael Doherty;Robin Matzner;Rasoul Sadeghi;Polina Bayvel;Alejandra Beghelli

{"title":"Reinforcement learning for dynamic resource allocation in optical networks: hype or hope?","authors":"Michael Doherty;Robin Matzner;Rasoul Sadeghi;Polina Bayvel;Alejandra Beghelli","doi":"10.1364/JOCN.559990","DOIUrl":"https://doi.org/10.1364/JOCN.559990","url":null,"abstract":"The application of reinforcement learning (RL) to dynamic resource allocation in optical networks has been the focus of intense research activity in recent years, with almost 100 peer-reviewed papers. We present a review of progress in this field and identify weaknesses in benchmarking practices and reproducibility. To demonstrate best practice, we exactly recreate the problem settings from five landmark papers and apply improved benchmarks. To determine the best benchmarks, we evaluate several heuristic algorithms and optimize the candidate path count and sort criteria for path selection. We apply the improved benchmarks and demonstrate that simple heuristics outperform the published RL solutions, often with an order of magnitude lower blocking probability. Finally, to estimate the limits of improvement on the benchmarks, we present empirical lower bounds on blocking probability using a novel, to our knowledge, defragmentation-based method. Our method estimates that traffic load can be increased by 19%–36% for the same blocking in our examples, which may motivate further research on optimized resource allocation. We make our simulation framework and results openly available to promote reproducible research and standardized evaluation: https://doi.org/10.5281/zenodo.12594495.","PeriodicalId":50103,"journal":{"name":"Journal of Optical Communications and Networking","volume":"17 9","pages":"D1-D17"},"PeriodicalIF":4.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Failure management in optical networks with ML: a tutorial on applications, challenges, and pitfalls [Invited] 基于ML的光网络故障管理：应用、挑战和陷阱教程[特邀]

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-06-27 DOI: 10.1364/JOCN.551910

Francesco Musumeci;Massimo Tornatore

引用次数: 0

Long-haul dissemination of the Swiss national time-scale UTC(CH) in a telecommunication fiber network via White Rabbit 瑞士国家时间尺度UTC（CH）通过白兔在电信光纤网络中的长距离传播

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-06-25 DOI: 10.1364/JOCN.560593

A. Jallageas;D. Husmann;J. Morel;F. Mauchle;R. Mathis;L. Nagy;A. Jaquier

{"title":"Long-haul dissemination of the Swiss national time-scale UTC(CH) in a telecommunication fiber network via White Rabbit","authors":"A. Jallageas;D. Husmann;J. Morel;F. Mauchle;R. Mathis;L. Nagy;A. Jaquier","doi":"10.1364/JOCN.560593","DOIUrl":"https://doi.org/10.1364/JOCN.560593","url":null,"abstract":"White Rabbit has emerged as a promising technology for time-scale dissemination, providing resilience to satellite techniques. To achieve state-of-the-art synchronicity at the sub-nanosecond level in a White Rabbit network, a complete characterization of physical effects, components, and the reference time scale is required in order to remove systematic offsets not compensated by the White Rabbit protocol. Due to this complexity, only a few long-range White Rabbit networks can claim synchronicity to a national time scale on a sub-nanosecond level. We present here such a network with the vocation to disseminate the Swiss official time-scale UTC(CH). To that end, the White Rabbit network layer is multiplexed into two dark channels in the L-band of a deployed telecommunication fiber network covering nearly 500 km of fiber. We characterize its performance in terms of stability and accuracy and find an uncertainty of 289–415 ps. This validates its potential to disseminate UTC(CH) at the sub-nanosecond accuracy and precision level. The results confirm that White Rabbit provides the necessary performance to distribute and compare the national time-scale UTC(CH) over optical fiber networks at the national and eventually at international levels.","PeriodicalId":50103,"journal":{"name":"Journal of Optical Communications and Networking","volume":"17 7","pages":"631-637"},"PeriodicalIF":4.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144481861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multicast-native DU–CU deployment and x-haul scheduling for 5G-Advanced optical-wireless converged networks 5G-Advanced光无线融合网络的多播本地DU-CU部署和x-haul调度

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-06-25 DOI: 10.1364/JOCN.553717

Yuming Xiao;Pengfei Zhu;Haiqiao Wu;Xinping Gao;Chen Zhang

{"title":"Multicast-native DU–CU deployment and x-haul scheduling for 5G-Advanced optical-wireless converged networks","authors":"Yuming Xiao;Pengfei Zhu;Haiqiao Wu;Xinping Gao;Chen Zhang","doi":"10.1364/JOCN.553717","DOIUrl":"https://doi.org/10.1364/JOCN.553717","url":null,"abstract":"Real-time immersive media has sparked a wave of application innovations (e.g., live streaming), fueling the rapid prosperity of multicast services supported in 5G-Advanced radio access networks (5G-A RANs). However, multicast will involve transmitting multiple copies of service data within the RAN, resulting in resource overprovisioning for both baseband processing and optical x-haul transmission. This challenge will increase the expenditure for RAN infrastructure, necessitating considerable concern from telecom operators. Despite its significance, this issue has not been thoroughly explored in existing literature. To address this issue, this paper proposes a mixed-resource-sharing (MRS) scheme, enabling identical multicast requests from the same or different active antenna units to share common processing and transmission resources. By building upon this scheme, we propose a mixed-integer linear programming model to optimize baseband-function deployment and x-haul scheduling, with the aim of minimizing the number of activated processing pools, consumed processing and bandwidth resources, as well as utilized wavelengths. We then develop an MRS-enabled heuristic to further adapt this scheme to large-scale network paradigms. For validation, we compare our proposals with the traditional solution in the existing literature, which simply emulates multicast as multiple independent unicasts. Simulations are conducted in both small-scale and large-scale networks across different cases. Numerical results demonstrate that our proposals outperform the existing solution, particularly in terms of processing resource saving, with improvements exceeding 12%.","PeriodicalId":50103,"journal":{"name":"Journal of Optical Communications and Networking","volume":"17 7","pages":"564-579"},"PeriodicalIF":4.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144481831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical fiber anomaly detection through SRS-induced spectral tilt in C+L-band transmission systems C+ l波段传输系统中srs诱导光谱倾斜的光纤异常检测

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-06-24 DOI: 10.1364/JOCN.566245

Zihao Cui;Yuchen Song;Xiao Luo;Shengnan Li;Jiele Li;Meixia Fu;Cheng Ju;Jin Li;Min Zhang;Danshi Wang

{"title":"Optical fiber anomaly detection through SRS-induced spectral tilt in C+L-band transmission systems","authors":"Zihao Cui;Yuchen Song;Xiao Luo;Shengnan Li;Jiele Li;Meixia Fu;Cheng Ju;Jin Li;Min Zhang;Danshi Wang","doi":"10.1364/JOCN.566245","DOIUrl":"https://doi.org/10.1364/JOCN.566245","url":null,"abstract":"Fiber-optic communication systems serve as the backbone of modern data communication networks, with increasing demands on their reliability and robustness in various emerging applications. A key challenge in ensuring reliable fiber-optic transmission lies in addressing fiber anomalies, which can cause signal degradation, service disruptions, and even system failures. However, the current anomaly detection method is too complex to be implemented in deployed networks or consumes too much time during detection. This paper proposes a simple and effective fiber anomaly detection method for C+L-band fiber-optic communication systems, leveraging the spectral tilt induced by the stimulated Raman scattering (SRS) effect. The method reconstructs the spectral tilt along an anomalous fiber link by analyzing the input and output power profile, easily obtainable from optical channel monitors (OCMs), enabling anomaly localization and loss quantification through forward and backward spectral tilt comparison. The performance and robustness of the proposed method are studied and discussed in actual scenarios such as erbium-doped fiber amplifier gain fluctuations, OCM measurement errors, parameter inaccuracies, and modeling inaccuracies. In addition to being able to detect a single anomaly, the process of using the proposed method to achieve multiple anomaly detection links is also discussed according to the chronological order of anomalies. Experimental validation on a multi-span C+L-band transmission system achieves a maximum localization error of 2.06 km and a maximum loss estimation error of 0.14 dB within 2 s. This work underscores the potential of exploiting inherent physical phenomena like SRS for fast anomaly detection in deployed optical networks.","PeriodicalId":50103,"journal":{"name":"Journal of Optical Communications and Networking","volume":"17 7","pages":"616-630"},"PeriodicalIF":4.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ToPro+: a topology projector considering port assignment and waveguide routing for wavelength-routed optical networks-on-chip ToPro+：考虑端口分配和波导路由的拓扑投影仪，用于波长路由的片上光网络

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-06-18 DOI: 10.1364/JOCN.559568

Zhidan Zheng;Mengchu Li;Tsun-Ming Tseng;Ulf Schlichtmann

{"title":"ToPro+: a topology projector considering port assignment and waveguide routing for wavelength-routed optical networks-on-chip","authors":"Zhidan Zheng;Mengchu Li;Tsun-Ming Tseng;Ulf Schlichtmann","doi":"10.1364/JOCN.559568","DOIUrl":"https://doi.org/10.1364/JOCN.559568","url":null,"abstract":"For supporting high-bandwidth communication with low power and latency, wavelength-routed optical networks-on-chip (WRONoCs) are widely considered an appealing option for high-performance computing systems. Moreover, current physical-design-friendly topologies, where the interconnect is optimized to match physical constraints, have attracted increasing attention. Despite the layout-aware interconnect, current physical design methods overlook the physical information and synthesize layouts from scratch. As a result, the implementation of the physical-design-friendly topologies faces two major concerns: (a) significant computational complexity caused by performing physical design from scratch and (b) high power consumption due to much insertion loss generated by extra crossings or detours of waveguides in the layout results. To overcome them, we propose a novel, to our knowledge, design methodology, ToPro+, to implement physical-design-friendly topologies. Instead of abandoning the layout-aware interconnect of those topologies, we make full use of them by projecting the topologies directly onto a layout plane. In this way, the interconnect is entirely reserved and directly serves as a set of physical connections, which reduces the computational complexity. To avoid extra crossings and detours of waveguides, we optimize the assignment from the input/output ports of a topology to the sending/receiving terminals of nodes and the waveguide routing between them. The experimental results demonstrate the efficiency of ToPro+. For a 16-node network, compared to the two latest WRONoC design methods, ToPro+ synthesizes it within a few seconds and reduces the total optical power consumption by about 30%.","PeriodicalId":50103,"journal":{"name":"Journal of Optical Communications and Networking","volume":"17 7","pages":"601-615"},"PeriodicalIF":4.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Field demonstration of commercial PONs for edge-cloud-based industrial scenarios: requirements, use cases, and proofs of concept 基于边缘云的工业场景的商业pon的现场演示：需求、用例和概念证明

IF 4 2区计算机科学

Journal of Optical Communications and Networking Pub Date : 2025-06-16 DOI: 10.1364/JOCN.559569

Massimiliano Sica;Behnam Shariati;Hagen Hosl;David Przewozny;Sonke C. Niemann;Moritz Chemnitz;Paul Chojecki;Johannes K. Fischer;Ronald Freund

{"title":"Field demonstration of commercial PONs for edge-cloud-based industrial scenarios: requirements, use cases, and proofs of concept","authors":"Massimiliano Sica;Behnam Shariati;Hagen Hosl;David Przewozny;Sonke C. Niemann;Moritz Chemnitz;Paul Chojecki;Johannes K. Fischer;Ronald Freund","doi":"10.1364/JOCN.559569","DOIUrl":"https://doi.org/10.1364/JOCN.559569","url":null,"abstract":"Industrial networks and edge-cloud integration in manufacturing processes have gained significant attention due to the evolving requirements of Industry 4.0. Key demands include data-driven network management, multi-service support, and low-latency, high-bandwidth communications, all essential for the industry’s future. Standardization groups like the European Telecommunications and Standardization Institute (ETSI) and several other research groups are working to quantify the requirements that industrial networks must meet to support Industry 4.0 applications. This study implements two ETSI use cases: Edge-Cloud-based Visual Inspection for Automatic Quality Assessment in Production and Edge-Cloud-based Control of Automated Guided Vehicles. We experimentally validate the performance of the use cases by employing a physical testbed for edge-cloud-enabled manufacturing based on ETSI recommendations. We present a passive optical network testbed that connects multiple manufacturing floors to an edge-cloud for management, orchestration, and control. Our implementation features nanosecond-scale synchronization using precision time protocol, real-time network and energy monitoring for ubiquitous visibility, and multi-service capabilities through network slicing.","PeriodicalId":50103,"journal":{"name":"Journal of Optical Communications and Networking","volume":"17 7","pages":"590-600"},"PeriodicalIF":4.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144299329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0