L. Valcarenghi, A. Pacini, A. Sgambelluri, F. Paolucci
{"title":"A Scalable Telemetry Framework for Zero Touch Optical Network Management","authors":"L. Valcarenghi, A. Pacini, A. Sgambelluri, F. Paolucci","doi":"10.23919/ONDM51796.2021.9492488","DOIUrl":"https://doi.org/10.23919/ONDM51796.2021.9492488","url":null,"abstract":"The interest about Zero Touch Network and Service Management (ZSM) is rapidly emerging. As defined by ETSI, the ZSM architecture is based on a closed-loop/feedback control of the network and the services. Such closed-loop control can be based on the Boyd’s Observe Orient Decide and Act (OODA) loop that matches some specific management functions such as Data Collection, Data Analytics, Intelligence, Orchestration and Control. An efficient implementation of such control loop allows the network to timely adapt to changes and maintain the required quality of service.Many solutions for collecting network parameters (i.e., implementing ZSM data collection) are proposed that fall under the broad umbrella of network telemetry. An example is the Google gRPC, that represented one of the first solutions to provide a framework for data collection. Since then, the number of available frameworks is proliferating. In this paper we propose the utilisation of Apache Kafka as a framework for collecting optical network parameters. Then, the paper goes beyond that by proposing and showing how Apache Kafka can be effective for supporting data exchange and management of whole ZSM closed-loop.Experimental evaluation results show that, even when a large number of data are collected, the solution is scalable and the time to disseminate the parameter values is short. Indeed, the difference between the reception time and the generation time of data is, on average, 40-50ms when about four thousand messages are generated.","PeriodicalId":163553,"journal":{"name":"2021 International Conference on Optical Network Design and Modeling (ONDM)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116307541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Ntanos, D. Zavitsanos, N. Lyras, G. Giannoulis, H. Avramopoulos
{"title":"On the Availability of the Decoy State BB84 QKD over a Terrestrial FSO Link","authors":"A. Ntanos, D. Zavitsanos, N. Lyras, G. Giannoulis, H. Avramopoulos","doi":"10.23919/ONDM51796.2021.9492462","DOIUrl":"https://doi.org/10.23919/ONDM51796.2021.9492462","url":null,"abstract":"A research contribution focusing on the feasibility of the Decoy State BB84 Quantum Key Distribution (QKD) protocol over a free-space optical (FSO) link under strong and moderate solar radiance in the urban environment of Athens city, Greece for short distances up to 1km is presented. Emphasis is placed on the time varying attenuation which is introduced by various atmospheric processes and especially on the effect of strong atmospheric turbulence. We examine how these factors affect the performance of the FSO link by conducting numerical simulations of the Secure Key Rate (SKR) and evaluating the link availability.","PeriodicalId":163553,"journal":{"name":"2021 International Conference on Optical Network Design and Modeling (ONDM)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114190190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Gunning, Amandeep Kaur, Natalia Cañas Estrada, Julie Raulin, Yuliya Verbishchuk, C. Sreenan
{"title":"Enabling High Capacity Flexible Optical Networks","authors":"F. Gunning, Amandeep Kaur, Natalia Cañas Estrada, Julie Raulin, Yuliya Verbishchuk, C. Sreenan","doi":"10.23919/ONDM51796.2021.9492503","DOIUrl":"https://doi.org/10.23919/ONDM51796.2021.9492503","url":null,"abstract":"Current bandwidth demands are encouraging the exploration of optical frequency comb generators and flexible modulation formats to enable very high-capacity transmission beyond the C-band, which can be augmented with existing real-time digital electronic signal processing for pre-emphasis and post-impairment compensation at very high clock speeds. But for exploitation and deployment in commercial networks these devices will require support for remote management embedded with service providers’ operation and business-support systems. However, installed network management systems must deal with a range of dissimilar network devices. This diversity spans across electronic packet switches, optical circuit switches, and monitoring instrumentation for telemetry, ranging from legacy to state-of-the-art models. Software defined networking (SDN) flexible management approach unlocks exciting possibilities to jointly exploit the full capabilities of digital electronic packet switching and the many degrees of freedom presented by analogue optical EM carriers. In this paper, we will expose some of these possibilities, where these technologies can, through SDN, be reimagined to enable flexible high-capacity systems. We will be revisiting the potential for multi-carrier transmitters, and utilising analogue methods to monitor transmitter performance. We will also show how existing protocols can be used to support both legacy and state-of-the-art SDN-enabled devices, incorporating to management operating systems such as ONOS, showing that a smooth transition to fully automated networks with closed-loop control is now a real prospect.","PeriodicalId":163553,"journal":{"name":"2021 International Conference on Optical Network Design and Modeling (ONDM)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115514834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Alemany, R. Vilalta, R. Muñoz, R. Casellas, R. Martínez
{"title":"Blockchain-Based Connectivity Provisioning in Multiple Transport SDN Domains","authors":"P. Alemany, R. Vilalta, R. Muñoz, R. Casellas, R. Martínez","doi":"10.23919/ONDM51796.2021.9492411","DOIUrl":"https://doi.org/10.23919/ONDM51796.2021.9492411","url":null,"abstract":"Hierarchical Software Define Networking (SDN) architectures is used to manage the co-existence of multiple domains by having an element on top. A collaborative relation-ship between domains, might solve this issue. Blockchain may become the key element for this change to happen. This paper presents a Blockchain-based architecture to provide SDN actions to configure connectivity services in transport domains. The results presented show that the use of Blockchain is a promising candidate for inter-domain SDN control.","PeriodicalId":163553,"journal":{"name":"2021 International Conference on Optical Network Design and Modeling (ONDM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133363506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Khomchenko, S. Patri, A. Autenrieth, C. M. Machuca, A. Richter
{"title":"Transmission-Aware Bandwidth Variable Transceiver Allocation in DWDM Optical Networks","authors":"D. Khomchenko, S. Patri, A. Autenrieth, C. M. Machuca, A. Richter","doi":"10.23919/ONDM51796.2021.9492501","DOIUrl":"https://doi.org/10.23919/ONDM51796.2021.9492501","url":null,"abstract":"This paper addresses the transmission-aware transceiver allocation problem of flexible optical networks for a multi-period planning. The proposed approach aims at assigning the best configuration of bandwidth variable transceivers (BV-TRX) considering the amplifier noise and nonlinear channel interferences using the incoherent Extended Gaussian Noise (EGN) model. The proposed solution improves the network throughput and spectrum utilization in the early planning periods and allocates lower number of BV-TRXs in later periods in comparison to algorithms presented recently. A heuristic approach to regenerator placement has also been applied achieving up to 25% transceiver and 50% spectrum utilization savings in comparison to configurations without regenerators.","PeriodicalId":163553,"journal":{"name":"2021 International Conference on Optical Network Design and Modeling (ONDM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130969812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ultra-Wideband Information Throughput Attained via Launch Power Allocation","authors":"N. Shevchenko, Sam Nallaperuma, S. Savory","doi":"10.23919/ONDM51796.2021.9492399","DOIUrl":"https://doi.org/10.23919/ONDM51796.2021.9492399","url":null,"abstract":"Maximised information rates of ultra-wideband (typically, beyond 100 nm) lumped-amplified fibre-optic communication systems have been thoroughly examined accounting for the wavelength dependencies of fibre parameters as well as the impact of the inter-channel stimulated Raman scattering (SRS). If the tilted signal spectral profile due to SRS is supposed to be completely undone at every fibre span, the obtained results demonstrate the possibility to approach nearly optimal system performance by launching sub-optimal but practically relevant uniform power profiles.","PeriodicalId":163553,"journal":{"name":"2021 International Conference on Optical Network Design and Modeling (ONDM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131283013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhuangzhuang Ma, Yongli Zhao, Wei Wang, X. Xin, Jie Zhang
{"title":"Adaptive Snapshot Routing Based on Space Debris Risk Perception in Satellite Optical Networks","authors":"Zhuangzhuang Ma, Yongli Zhao, Wei Wang, X. Xin, Jie Zhang","doi":"10.23919/ONDM51796.2021.9492513","DOIUrl":"https://doi.org/10.23919/ONDM51796.2021.9492513","url":null,"abstract":"With the advantages of large transmission capacity, high data rate and good confidentiality, inter-satellite laser communication has become a promising alternative for satellite networks. However, with more and more satellite nodes being launched into the space, the number of space debris will increase rapidly. Due to the nature of linear transmission of laser links, space debris may cause the uncertain interruption of laser links, and further degrade the link survivability of satellite optical networks. In this paper, we design a risk perception model based on machine learning for inter-satellite laser links risk caused by space debris. Based on this model, we propose an adaptive snapshot routing strategy based on flexible granularity (ASRS-FG), which can effectively avoid the risk of inter satellite link interruption caused by space debris. Finally, to verify the performance of the algorithm, we built a satellite optical networks simulation platform. The simulation results show that our model’s prediction accuracy on space debris risk reaches 95%. Compared with the equal-length snapshot routing strategy (ESRS), ASRS-FG effectively avoids the use of risky laser links and achieves higher service success ratio and fewer snapshot switching times.","PeriodicalId":163553,"journal":{"name":"2021 International Conference on Optical Network Design and Modeling (ONDM)","volume":"270 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123318510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Gatto, J. P. Brito, M. Brunero, Dileepsai Bodanapu, Rubén B. Méndez, Rafael J. Vicente, P. Comi, V. Martín, P. Martelli
{"title":"Quantum Technologies for future Quantum Optical Networks","authors":"A. Gatto, J. P. Brito, M. Brunero, Dileepsai Bodanapu, Rubén B. Méndez, Rafael J. Vicente, P. Comi, V. Martín, P. Martelli","doi":"10.23919/ONDM51796.2021.9492413","DOIUrl":"https://doi.org/10.23919/ONDM51796.2021.9492413","url":null,"abstract":"The recent evolutions in the convergence of QKD and classical communication systems are described, together with the relevance of SDN as a suitable approach for a real integration between QKD and WDM networks. Preliminary experimental results on a discrete-variable QKD prototype working in the O-band co-propagating with 40 50-GHz C-band information channels are reported, showing the capabilities of QKD in short/medium reach optical networks.","PeriodicalId":163553,"journal":{"name":"2021 International Conference on Optical Network Design and Modeling (ONDM)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126826328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimal virtual PON slicing to support ultra-low latency mesh traffic pattern in MEC-based Cloud-RAN","authors":"Sandip Das, M. Ruffini","doi":"10.23919/ONDM51796.2021.9492428","DOIUrl":"https://doi.org/10.23919/ONDM51796.2021.9492428","url":null,"abstract":"As progressive densification of cells, deployment of Cloud-RAN and Multi Access Edge Computing (MEC) are coming into reality to support the ultra-low latency with high reliability in 5G and beyond, it generates mesh traffic pattern across fronthaul network. This led to the evolution of PON architectural enhancements with virtualization in order to support such mesh traffic pattern. However, the allocation of virtual PON slices dynamically over such mesh-PON based fronthaul transport is becoming a research challenge. In this paper, we provide a mixed analytical-iterative model to compute optimal virtual PON slice allocation, providing mesh access connectivity with ultra-low end-to-end latency in next-generation MEC-based Cloud-RAN. Our proposed method can compute optimal virtual PON slice allocation in timescales compatible with real-time or near real-time operations.","PeriodicalId":163553,"journal":{"name":"2021 International Conference on Optical Network Design and Modeling (ONDM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121695791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}