Results 11 to 20 of about 3,148,536 (295)
A quantum access network [PDF]
Nature, 2013 The theoretically proven security of quantum key distribution (QKD) could revolutionise how information exchange is protected in the future. Several field tests of QKD have proven it to be a reliable technology for cryptographic key exchange and have demonstrated nodal networks of point-to-point links.
Fröhlich, Bernd +5 more
openaire +3 more sources
Personalizing access to learning networks [PDF]
ACM Transactions on Internet Technology, 2008 In this article, we describe a Smart Space for Learning™ (SS4L) framework and infrastructure that enables personalized access to distributed heterogeneous knowledge repositories. Helping a learner to choose an appropriate learning resource or activity is a key problem which we address in this framework, enabling ...
Peter Dolog +3 more
openaire +1 more source
Access to Resources in Networks
Acta Sociologica, 2008 In cross-national comparative studies of people's social capital, there is a standard practice of measuring social capital using the size and intensity of people's networks. In this article, we discuss the validity of this practice, from both a theoretical and an empirical perspective.
van Oorschot, W.J.H., Finsveen, E.M.
openaire +2 more sources
Access regulation and the transition from copper to fiber networks in telecoms [PDF]
, 2013 In this paper we study the impact of different forms of access obligations on firms' incentives to migrate from the legacy copper network to ultra-fast broadband infrastructures.
Carlo Cambini +24 more
core +4 more sources
Joint Hybrid Backhaul and Access Links Design in Cloud-Radio Access Networks [PDF]
, 2015 The cloud-radio access network (CRAN) is expected to be the core network architecture for next generation mobile radio systems. In this paper, we consider the downlink of a CRAN formed of one central processor (the cloud) and several base-station (BS ...
Al-Naffouri, Tareq Y. +3 more
core +2 more sources
Two-Way Fano Resonance Switch in Plasmonic Metamaterials
Frontiers in Physics, 2020 A two-way Fano resonance switch in the plasmonic metamaterials has been proposed and experimentally demonstrated. The electrical Fano switch is composed of two concentric spoof localized surface plasmon (LSP) resonators.
Yong Jin Zhou +4 more
doaj +1 more source
, 2003 This paper introduces an innovative approach to an Open Access Network (OAN) built upon the existing “privately owned” wireless LANs and the users’ access lines (ADSL/VDSL, optical fibre, cable modems). By providing up to 25Mb/s shared capacity to the stationary and casually visiting users in a wireless LAN zone, the OAN is probably the only realistic ...
Einar Edvardsen +2 more
openaire +1 more source
Sensors, 2016 Atomic layer deposition (ALD) technology is introduced to fabricate a high sensitivity refractometer based on an adiabatic tapered optical fiber. Different thicknesses of titanium dioxide (TiO2) nanofilm were coated around the tapered fiber precisely and
Shan Zhu +6 more
doaj +1 more source
Optimized Real-Time MUSIC Algorithm With CPU-GPU Architecture
IEEE Access, 2021 Direction-of-arrival (DOA) estimation algorithm for uniform planar arrays has been applied in many fields. The multiple signal classification (MUSIC) algorithm has obvious advantage in high-resolution signal source estimation scenarios.
Qinghua Huang, Naida Lu
doaj +1 more source
Optimizing cooperative cognitive radio networks with opportunistic access [PDF]
, 2012 Optimal resource allocation for cooperative cognitive radio networks with opportunistic access to the licensed spectrum is studied. Resource allocation is based on minimizing the symbol error rate at the receiver.
Alouini, Mohamed-Slim +3 more
core +3 more sources