Exploració per autor "Spadaro, Salvatore"
Ara es mostren els items 105-124 de 166
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On Avoiding-Minimizing Burst Collisions in Optical Burst-Switched Networks without Wavelength Conversion
(IEEE, 2009-06-28)
Comunicació de congrés
Accés obertIn this paper, a new MAC protocol for OBS networks is introduced, described and evaluated. Into operation, DAOBS avoids burst collisions in the core of the network by controlling the way OBS nodes access the optical channel. ... -
On the benefits of probabilistic constellation shaping in Flex-Grid/MCF dynamic optical backbone networks
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés obertIn this paper, we propose a novel methodology for estimating the worst-case spectral efficiency (b/s/Hz) of end-to-end paths across a Multi-Core Fiber (MCF)-enabled Flex-Grid optical network, accounting for physical link ... -
On the benefits of resource disaggregation for virtual data centre provisioning in optical data centres
(2017-07-15)
Article
Accés obertVirtual Data Centre (VDC) allocation requires the provisioning of both computing and network resources. Their joint provisioning allows for an optimal utilization of the physical Data Centre (DC) infrastructure resources. ... -
On the benefits of RINA over programmable optical networks for dynamic and smart resource management
(2015)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, we describe the basics of the Recursive InterNetwork Architecture (RINA) and its advantages as a packet transport technology over programmable optical networks. In particular, its seamless integration over ... -
On the complexity of configuration and orchestration for enabling disaggregated server provisioning in optical composable data centers
(Optical Society of American (OSA), 2022-12-01)
Article
Accés obertDue to the limitations of traditional data center (DC) architectures, the concept of infrastructure disaggregation has been proposed. DC resources are separated into multiple blades to be exploited independently. As a ... -
On the performance of dynamic source aggregation of sub-wavelength connections in EONs
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialIn elastic optical networks, heterogeneous traffic demands are typically supported by a single type of bandwidth-variable transmitters, which is not always spectrum and cost efficient. In light of this, we recently proposed ... -
On the scalability of dynamic Flex-Grid/SDM optical core networks
(2018-09-04)
Article
Accés obertFuture optical core networks realizing Flex-Grid and Space Division Multiplexing (Flex-Grid/SDM) will be key to effectively cope with the rapid growth of the Internet traffic, thanks to their superior capacity and spectrum ... -
Optical power budget enhancement in 50-90 Gb/s IM-DD PONs with NOMA-CAP and SOA-Based amplification
(2020-05-15)
Article
Accés obertWe report experimental results of a semiconductor optical amplifier (SOA) for optical amplification in a 50-90 Gb/s IM-DD optical access system using non-orthogonal multiple access multiplexing combined with multi-band ... -
Optimal allocation of virtual optical networks for the future internet
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés obertOptical network infrastructures can be partitioned into multiple parallel, dedicated virtual networks for a physical infrastructure sharing purpose. However, different transport technologies may impact in both the amount ... -
Optimal design of cost-effective OXC and ROADM nodes to maximize the throughput of mesh-based u-DWDM metro-access networks
(Springer, 2023-06-22)
Article
Accés obertMetro-access networks will play a primary role in future network fabrics, enabling connectivity among different actors such as 5G-based radio stations, edge datacenters, businesses, and home users. To provide such heterogeneous ... -
Optimal VDC service provisioning in optically interconnected disaggregated data centers
(2016-07)
Article
Accés obertVirtual data center (VDC) is a key service in modern data center (DC) infrastructures. However, the rigid architecture of traditional servers inside DCs may lead to blocking situations when deploying VDC instances. To ... -
Optimal virtual slice composition toward multi-tenancy over hybrid OCS/OPS data center networks
(Institute of Electrical and Electronics Engineers (IEEE), 2015-10-01)
Article
Accés obertMulti-tenancy is a key feature of modern data centers. It allows for the existence of multiple independent virtual infrastructures, called virtual slices, on top of the same physical infrastructure, each of them specially ... -
Orchestrated SDN-based VDC provisioning over multi-technology optical data centre networks
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertIn this paper, we describe some scenarios and technologies that have been proposed to cope with the requirements of current and next generation data centre infrastructure. In particular, we discuss the extensions that have ... -
Orchestrating virtual slices in data centre infrastructures with optical DCN
(2019-07-01)
Article
Accés obertThe emergence of new paradigms and services is pushing the limits of nowadays cloud infrastructures. It is a fact that current solutions lack in the flexibility and configurability to adapt to heterogeneous requirements ... -
Performance evaluation of a hybrid OBS/OCS network with QoS differentiation based on packet loss/delay requirements
(2010)
Text en actes de congrés
Accés obertThis paper introduces and evaluates a hybrid OBS/OCS switch for Quality of Service (QoS) differentiation in next-generation all-optical transport networks. Depending on their QoS requirements, incoming IP packets are ... -
Performance evaluation of an all-optical OCS/OPS-based network for intra-data center connectivity services
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés obertAs the size of Data Centers (DCs) and the amount of information managed by them grows, nowadays electronic-based intra-Data Center Networks (DCNs) start to become a limiting factor, not providing enough scalability nor ... -
Performance evaluation of an all-optical OCS/OPS-Based network for intra-data center connectivity services
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialAs the size of Data Centers (DCs) and the amount of information managed by them grows, nowadays electronic-based intra-Data Center Networks (DCNs) start to become a limiting factor, not providing enough scalability nor ... -
Performance issues in Optical Burst/Packet Switching
(Springer, 2009-04-01)
Capítol de llibre
Accés restringit per política de l'editorialThis chapter summarises the activities on optical packet switching (OPS) and optical burst switching (OBS) carried out by the COST 291 partners in the last 4 years. It consists of an introduction, five sections with ... -
Planning of optical and IT resources for efficient virtual infrastructure embedding
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialThis work addresses the offline problem of efficiently planning network substrates joining geographically distributed IT resource locations over high-capacity optical resources. Given an already known set of virtual ... -
Practical spectral efficiency estimation for optical networking
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Text en actes de congrés
Accés obertAssigning the right spectral resources is the key to flex-grid optical networking. Finding the optimal spectral allocation is a daunting task, as there are many variables at play that make accurate network models very ...
