Results 251 to 260 of about 302,140 (281)

Security in 4G

2008
The fourth generation (4G) of mobile networks will be a technology-opportunistic and user-centric system combining the economic and technological advantages of different transmission technologies to provide a context-aware and adaptive service access anywhere and at any time.
Artur Hecker, Mohamad Badra
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Handoff management in 4G networks

Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly, 2009
Next generation wireless and mobile communication systems integrate different wireless networks; each network is optimized for some specific services and coverage area to satisfy the demands of various network users.A widespread vision of the fourth generation (4G) mobile networks includes coexistence of current wireless technologies such as WLAN ...
Sarra Ben Oubira, Mounir Frikha, Sami Tabbane   +2 more
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Hyperbolic Lattices with Complete Labeling Derived from {4g, 4g} Tessellations

2015
Hyperbolic lattices \(\mathcal{O}\) are the basic entities used in the design of signal constellations in the hyperbolic plane. Once the identification of the arithmetic Fuchsian group in a quaternion order is made, the next step is to present the codewords of a code over a graph, or a signal constellation (quotient of an order by a proper ideal ...
Cátia Regina de Oliveira Quilles Queiroz, Cintya Benedito, José Carmelo Interlando, Reginaldo Palazzo Júnior   +3 more
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4G in the U.S.A.

IEEE Spectrum, 2010
Fourth-generation wireless got its official start in the United States one year ago when Clearwire Wireless made Portland, Ore., the first city to be covered by its WiMax wireless "last mile" broadband connection. Twelve months later, the shape of wireless's future is now clearly outlined: WiMax has the early lead but will eventually be overtaken by ...
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4G Safety

Traffic Technology International, 2018
Your essential guide to the future of transportation communications
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M2M Challenges and Opportunities in 4G

Wireless Personal Communications, 2015
4G technology includes a profile for M2M communications in order to improve the efficiency of the foreseeable connection of hundreds of devices to the broadband wireless networks. These devices impose different requirements to those of human communications, most significantly their bursty nature and the small payload usually associated with each ...
Javier Poncela, José Miguel Moreno-Roldán, Muhammad Aamir 0001, Bilal Ahmad Alvi   +3 more
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Δίκτυα 4G τεχνοοικονομική ανάλυση 4G

2013
Στην παρούσα διπλωματική εργασία παρουσιάζονται τα δίκτυα 4ης γενιάς (4G). Η τέταρτη γενιά (4G) είναι η επόμενη γενιά των ασύρματων δικτύων που θα αντικαταστήσει τα δίκτυα τρίτης γενιάς (3G) και θα προσφέρει στους χρήστες όλα όσα δεν κατάφεραν να δώσουν τα προηγούμενα δίκτυα.
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To 4G mobile communication and beyond

2013 International Symposium on VLSI Technology, Systems and Application (VLSI-TSA), 2013
In summary, we envision that the future mobile communication network will be an Ultra Dense, Diverse Access Technologies Converged, Intelligent Network infrastructure complemented by a Device-to-Device network. An ultra-dense radio network with cells of many different sizes is the most effective way of increasing system capacity and ubiquitously covers
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2017
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Antenna design challenges for 4G

IEEE Wireless Communications, 2011
The trend in mobile wireless devices has been to provide faster access, improved processors, more memory, brighter and higher resolution screens, additional connectivity with Wi-Fi, GPS, third generation (3G), and fourth generation (4G) world access - all with longer battery life in thinner, sleeker packages.
openaire   +2 more sources