IEEE\/OSA Journal of Optical Communications and Networking
Papers 1400
1 page of 140 pages (1,400 results)
Through C+L band transmission experiments and theoretical modeling, we investigate the impact of channel symbol rate (30, 40, 60, and 85 GBd) on the performance of data center interconnection, metropolitan, and core network distances. Two different transponder architectures are investigated: (a) single-carrier receiver and (b) multi-carrier receiver, where multiple subcarriers are received together in a single wideband receiver. The architectures of both receivers experience a reduction in the a...
Network virtualization can improve the utilization of a physical network by enabling the coexistence of multiple virtual networks supporting different services. For an elastic optical network, network virtualization would create a number of virtual optical networks (VONs) embedded in the same physical optical network. Conventionally, each of these VONs is allocated with a fixed amount of network resources. However, the traffic demand on a VON is usually dynamic, varying over time. This leads to ...
Compared with electrical packet switches, optical switching technology could enable a more desirable high-performance computing (HPC) system with lower power consumption, lower delay, higher bandwidth, and more flexibility. In this article, we designed a hierarchical and reconfigurable optical/electrical HPC interconnection network. The traffic matrix of the target task can be decomposed into multiple matrix groups that are executed in parallel, and the network topology in each layer can be reco...
#1Francesco Paolucci (Sant'Anna School of Advanced Studies)H-Index: 20
#2Andrea Sgambelluri (Sant'Anna School of Advanced Studies)H-Index: 13
Last.Francesco FresiH-Index: 15
view all 11 authors...
The recent interest in the upgrade and enhancements of metro transport networks and the availability of transponder cards with coherent receivers is opening the way to filterless solutions employing only passive splitters/couplers and optical amplifiers, potentially achieving significant capital expeditures and operating expenditures savings. However, the filterless option suffers from inefficiencies, mainly due to the broadcasting constraint and the reduced optical reach. To overcome such limit...
Elastic optical networks (EONs) are being used to adapt to the recent rapid changes in traffic behavior and the exponential growth in bandwidth demand. Routing and spectrum allocation (RSA) is one of the most important determining factors of the design, performance, and operation of EONs. In this work, we propose an adaptive RSA algorithm based on the relative cost concept under which the transient effect when a call is admitted on a given route/spectrum set at a given network state is estimated...
#1Takafumi Tanaka (NTT: Nippon Telegraph and Telephone)H-Index: 9
#2Akira Hirano (Tokyo Denki University)H-Index: 1
Last.Antonio Manzalini (Telecom Italia Mobile)H-Index: 1
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This publisher’s note corrects an author’s affiliation in J. Opt. Commun. Netw.12, A9 (2020).
The plethora of services envisaged to support 5G use-cases requires the development of a radio access network (RAN) infrastructure with the capability to integrate a variety of user-demanded mobile traffic characteristics. It is therefore interesting to study a 5G deployment scenario showcasing heterogeneous transmission. In order to address this challenge, in this paper, we propose and experimentally assess a coarse-wavelength-division-multiplexing-compatible optical access network for joint pr...
Analog fronthaul transport architectures with digital signal processing at the end stations are promising as they have the potential to achieve high spectral efficiencies, increased flexibility and reduced latency. In this paper, two digital techniques for frequency domain multiplexing/de-multiplexing large numbers of channels are contrasted: one operates on the pre-Inverse Fast Fourier Transform (IFFT) “frequency-domain” samples while the other does so on the post-IFFT “time-domain” samples. Pe...
Network virtualization, which can flexibly and efficiently embed multiple client networks to a substrate network, is one of the most promising technologies to address the ossification problem of Internet infrastructure. This work focuses on studying the problem of hose-model network virtualization in general topology flexgrid optical networks. A mathematical model for this problem is presented, which integrates hose-model traffic routing and virtual network mapping into a unified integer linear ...
#1Hiroyuki Uzawa (NTT: Nippon Telegraph and Telephone)H-Index: 4
#2Kazuaki Honda (NTT: Nippon Telegraph and Telephone)H-Index: 4
Last.Jun Terada (NTT: Nippon Telegraph and Telephone)H-Index: 18
view all 7 authors...
In the coming 5G mobile communications era, a huge number of wireless access points will be densely deployed for networks such as mobile fronthaul and Internet-of-Things networks. A network-slicing-based time-division-multiplexing passive optical network (TDM-PON) is one solution for cost-effectively accommodating these access points. It enables us to converge these multiple networks that have different requirements by virtually isolating each sub-network on a single TDM-PON. To achieve this TDM...
Top fields of study
Network topology
Passive optical network
Electronic engineering
Computer network
Computer science