Results 11 to 20 of about 478,149 (274)

Dynamic Spectrum Sharing for Future LTE-NR Networks [PDF]

open access: yesSensors, 2021
5G is the next mobile generation, already being deployed in some countries. It is expected to revolutionize our society, having extremely high target requirements.
Gordana Barb   +2 more
doaj   +7 more sources

The CODYSUN Approach: A Novel Distributed Paradigm for Dynamic Spectrum Sharing in Satellite Communications [PDF]

open access: yesSensors, 2021
With a constant increase in the number of deployed satellites, it is expected that the current fixed spectrum allocation in satellite communications (SATCOM) will migrate towards more dynamic and flexible spectrum sharing rules.
Irfan Jabandžić   +6 more
doaj   +2 more sources

Cross-Layer Design in Dynamic Spectrum Sharing Systems [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
We consider a dynamic spectrum sharing system consisting of a primary user, whose licensed spectrum is allowed to be accessed by a secondary user as long as it does not violate the prescribed interference limit inflicted on the primary user.
Shadmand A, Nehra K, Shikh-Bahaei M
doaj   +4 more sources

Dynamic Spectrum Sharing in the Age of Millimeter-Wave Spectrum Access [PDF]

open access: yesIEEE Network, 2020
Next-generation wireless networks are facing spectrum shortage challenges, mainly due to, among other factors, the projected massive numbers of IoT connections and the emerging bandwidth-hungry applications that such networks ought to serve. Spectrum is scarce and expensive, and therefore, it is of crucial importance to devise dynamic and flexible ...
Hamdaoui, Bechir   +2 more
openaire   +5 more sources

Heuristically Accelerated Reinforcement Learning for Dynamic Secondary Spectrum Sharing [PDF]

open access: yesIEEE Access, 2015
This paper examines how flexible cellular system architectures and efficient spectrum management techniques can be used to play a key role in accommodating the exponentially increasing demand for mobile data capacity in the near future. The efficiency of
Nils Morozs, Tim Clarke, David Grace
doaj   +3 more sources

Dynamic Inter-Operator Spectrum Sharing via Lyapunov Optimization [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2017
The problem of spectrum sharing between two operators in a dynamic network is considered. We allow both operators to share (a fraction of) their licensed spectrum band with each other by forming a common spectrum band. The objective is to maximize the gain in profits of both operators by sharing their licensed spectrum bands rather than using them ...
Codreanu Ionel Marian   +3 more
openaire   +4 more sources

Broadband Spectrum Survey Measurements for Cognitive Radio Applications [PDF]

open access: yesRadioengineering, 2012
It is well known that the existing spectrum licensing system results in a gross under-utilization of the frequency spectrum. Spectrum background measurements – spectrum surveys – provide useful data for spectrum regulation, planning or finding frequency ...
R. Urban, T. Korinek, P. Pechac
doaj   +2 more sources

COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - Dynamic Spectrum Sharing: A Game Theoretical Overview [PDF]

open access: yesIEEE Communications Magazine, 2007
In order to fully utilize the scarce spectrum resources, with the development of cognitive radio technologies, dynamic spectrum sharing becomes a promising approach to increase the efficiency of spectrum usage. Game theoretical dynamic spectrum sharing has been extensively studied for more flexible, efficient, and fair spectrum usage through analyzing ...
Zhu Ji, K.J. Liu
openaire   +3 more sources

Spectrum Handoff pada Teknologi Dynamic Spectrum Access and Sharing untuk Radio Kognitif [PDF]

open access: yesJurnal Teknik ITS, 2012
Salah satu teknik dalam dynamic spectrum access and sharing yang diimplementasikan pada sistem radio kognitif adalah spektrum handoff. Spektrum handoff merupakan salah satu dari tiga bagian penting dalam teknologi radio kognitif selain spektrum sensing ...
Muhammad Nur Rahman   +2 more
doaj   +2 more sources

On Dynamic Spectrum Allocation in Geo-Location Spectrum Sharing Systems

open access: yesIEEE Transactions on Mobile Computing, 2019
Spectrum sharing is a key technology to relieve the ever-increasing spectrum demand and realize the full potential of radio spectrum. In this paper, we study spectrum sharing between higher priority users and lower priority users under geo-location based spectrum sharing systems.
ChunSheng Xin   +3 more
openaire   +3 more sources

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