Results 111 to 120 of about 254,009 (145)

4G Wireless Networks

IT Professional, 2012
4G wireless networks are receiving a lot of attention from researchers, wireless carriers, device manufacturers, and mobile users. This survey compares the original vision with current 4G offerings and considers future prospects.
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4G and 5G

Proceedings of the 4th International Conference on Big Data and Internet of Things, 2019
The advanced features of 5G mobile wireless network systems, especially with providing broadband access everywhere, entertain higher user mobility, yield new security requirements and challenges. This paper presents a comprehensive study on the security of 5G wireless network systems compared with the cellular network 4G.
Hanane Omerani, Tomader Mazri
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Visions of 4G

Electronics & Communication Engineering Journal, 2000
As the Virtual Centre of Excellence in Mobile and Personal Communications (Mobile VCE) moves into its second core research programme it has been decided to set up a fourth generation (4G) Visions Group aimed at harmonising the research work across the work areas and amongst the numerous researchers working on the programme.
B.G. Evans, K. Baughan
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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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Moving Towards Mmwave-Based Beyond-4G (B-4G) Technology

2013 IEEE 77th Vehicular Technology Conference (VTC Spring), 2013
Availability of large untapped spectrum resources in the millimeter wave (Mmwave) band is suitable for providing a gigabit experience with true local feel using high capacity small cells. Unlike traditional cellular systems, millimeter wave transmissions do not benefit from diffraction and dispersion making it difficult for them to propagate around ...
Mark Cudak   +6 more
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Complete hyperbolic lattices derived from tessellations of type {4g,4g}

Journal of Algebra and Its Applications, 2016
Regular tessellations of the hyperbolic plane play an important role in the design of signal constellations for digital communication systems. Self-dual tessellations of type [Formula: see text] with [Formula: see text], and [Formula: see text] have been considered where the corresponding arithmetic Fuchsian groups are derived from quaternion orders ...
Queiroz, Cátia Quilles   +3 more
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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   +2 more
openaire   +1 more source

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