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José Alberto Hernández
Charles III University of Madrid
113Publications
12H-index
806Citations
Publications 111
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#1David Eugui (Charles III University of Madrid)H-Index: 1
#2José Alberto Hernández (Charles III University of Madrid)H-Index: 12
Abstract Reusing the existing Optical Distribution Network (ODN) of Passive Optical Networks (PONs) to bring connectivity to residential households together with providing the so-called front-haul (FH) network in Cloud Radio Access Networks (C-RAN) is a promising converged fixed and mobile network architecture envisioned by network operators. This article overviews how to exploit Fixed Bandwidth Reservations allowed in ITU-T XG(S)-PONs and their suitability for the transmission of front-haul (FH...
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#1Ignacio Martin (Charles III University of Madrid)H-Index: 11
#2Sebastian Troia (Polytechnic University of Milan)H-Index: 3
Last.Oscar Gonzalez de Dios (Telefónica)H-Index: 9
view all 8 authors...
Recently, machine learning (ML) has attracted the attention of both researchers and practitioners to address several issues in the optical networking field. This trend has been mainly driven by the huge amount of available data (i.e., signal quality indicators, network alarms, etc.) and to the large number of optimization parameters which feature current optical networks (such as, modulation format, lightpath routes, transport wavelength, etc.). In this paper, we leverage the techniques from the...
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#1Ignacio Martin (Charles III University of Madrid)H-Index: 11
#2José Alberto Hernández (Charles III University of Madrid)H-Index: 12
Last.Sergio de los Santos (Telefónica)H-Index: 2
view all 3 authors...
Abstract Multi-scanner Antivirus (AV) systems are often used for detecting Android malware since the same piece of software can be checked against multiple different AV engines. However, in many cases the same software application is flagged as malware by few AV engines, and often the signatures provided contradict each other, showing a clear lack of consensus between different AV engines. This work analyzes more than 80 thousand Android applications flagged as malware by at least one AV engine,...
2 CitationsSource
#1Ignacio Martin (Charles III University of Madrid)H-Index: 11
#2José Alberto Hernández (Charles III University of Madrid)H-Index: 12
Last.Oscar Gonzalez de Dios (Telefónica)H-Index: 9
view all 3 authors...
This article presents Netgen, an open-source tool for the generation of large networking datasets through the open-source tool Net2Plan. We show Netgen’s features and applicability by generating six large labeled datasets for data analysis and Machine Learning. The datasets comprise 100,000 different data points for different traffic matrices and topologies, labeled after solving IP routing, IP routing with link disjoint 1+1 protection and RWA for IP over WDM networks. Both datasets and Netgen’s...
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#2Ricardo MartinezH-Index: 26
Last.G. GaspariniH-Index: 1
view all 21 authors...
An SDN-enabled modular photonic system architecture, including VCSEL-based bandwidth/bitrate variable transceivers, for multi-terabit capacity transmission and agile spectrum/space switching in optical metro networks is presented, providing the proposed technological solutions, programmability aspects and preliminary assessment.
1 CitationsSource
#1G. Otero (Charles III University of Madrid)H-Index: 1
#2David Larrabeiti (Charles III University of Madrid)H-Index: 11
Last.R. MartinezH-Index: 4
view all 10 authors...
A scalable cost-effective solution for high service availability featuring low latency is required for CDN caching. Recently, a field of study is that MAN data centers, within the latency budget, act as a backup for other local data centers of lesser reliability. Given the low latency target of caching, the optical layer is the preferred option to interconnect caches. However, carrying the backup traffic from one data center (DC) to another with a permanent optical circuit based on Fixed Transce...
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#1Sebastian Troia (Polytechnic University of Milan)H-Index: 3
#2David Eugui Martinez (ISCIII: Instituto de Salud Carlos III)
Last.Ramon CasellasH-Index: 18
view all 12 authors...
After more than ten years of research and development, Software-Defined Networking (SDN) and Network Function Virtualization (NFV) are finally going mainstream. The fifth generation telecommunication standard (5G) will make use of novel technologies to create increasingly intelligent and autonomous networks. The METRO-HAUL project proposes an advanced SDN/NFV metro-area infrastructure based on an optical backbone interconnecting edge-computing nodes, to support 5G and advanced services. In this ...
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Traffic demand in access networks has grown in recent years, and service providers need to upgrade their infrastructure to the latest access standards. While fiber has become the preferred technology of choice in access networks, there are many fibre access technologies available in the market. This poses challenging questions to operators that are not always easy to answer: How to upgrade? What technology and for how long wil it cope with the demands? In this article we model the traffic foreca...
2 CitationsSource
#1Ignacio Martin (Charles III University of Madrid)H-Index: 11
#2José Alberto Hernández (Charles III University of Madrid)H-Index: 12
Abstract Repackaging of applications is one of the key attack vectors for mobile malware. This is particularly easy and popular in Android Markets, where applications can be downloaded, decompiled, modified and re-uploaded at a very low cost. Detecting clones and victims is often a hard task, especially in markets with several million of applications to analyze, such as Google Play Store. This work proposes CloneSpot, a novel methodology to efficiently detect Repackaged versions of Android apps ...
1 CitationsSource
#1David Eugui (Charles III University of Madrid)H-Index: 1
#2José Alberto Hernández (Charles III University of Madrid)H-Index: 12
This article overviews the transport of fronthaul traffic along with residential traffic on an XG(S)-PON using both fixed and dynamic transmission windows in the PON's DBA.
1 CitationsSource
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