Results 51 to 60 of about 4,915,463 (326)
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2023 One of the main problems in the use of the radio frequency spectrum is its scarcity. This is due not only to its natural properties as a resource, but also to the inefficiency of its use. Work in this direction was carried out by scientists.
P. Yu. Lakizo
doaj +1 more source
5G Technology: Towards Dynamic Spectrum Sharing Using Cognitive Radio Networks
IEEE Access, 2020 The explosive popularity of small-cell and Internet of Everything devices has tremendously increased traffic loads. This increase has revolutionised the current network into 5G technology, which demands increased capacity, high data rate and ultra-low ...
Wan Siti Halimatul Munirah Wan Ahmad +6 more
semanticscholar +1 more source
World radiocommunication conference 12 : implications for the spectrum eco-system [PDF]
, 2012 Spectrum allocation is once more a key issue facing the global telecommunications industry. Largely overlooked in current debates, however, is the World Radiocommunication Conference (WRC).
Irvine, James +2 more
core +4 more sources
DETECTION OF UNKNOWN SIGNALS IN COGNITIVE RADIO NETWORKS
Information and Telecommunication Sciences, 2018 Background. At this stage of the development of wireless technologies, there is a rapid growth in the volume of information services, as well as the speed of information transfer. To meet these needs, additional frequency bands should be used.
Valeriy Bezruk, Stanislav Ivanenko
doaj +1 more source
Performance of Energy Detection Spectrum Sensing for Cognitive Radio Using GNU Radio
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2022 The increasing number of wireless communication applications has led to spectrum scarcity problems. On the other hand, the current system in allocating the spectrum frequency is inefficient.
Hudaya Muna Putra +3 more
doaj +1 more source
Spectrum Policy for Radio Spectrum Access
Proceedings of the IEEE, 2012 Classic spectrum management policies and regulations focused on unique frequency assignments for users to avoid intersystem interference. The growing demand for wireless communications along with the recognition that classic spectrum management leads to underutilized spectrum in time and space has resulted in interest in radio spectrum access ...
openaire +2 more sources
Radio properties of Compact Steep Spectrum and GHz‐Peaked Spectrum radio sources [PDF]
Astronomische Nachrichten, 2016 AbstractCompact steep spectrum (CSS) and GHz‐peaked spectrum (GPS) radio sources represent a large fraction of the extragalactic objects in flux density‐limited samples. They are compact, powerful radio sources whose synchrotron peak frequency ranges between a few hundred MHz to several GHz.
openaire +3 more sources
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
Spectrum sensing in cognitive radio networks: threshold optimization and analysis
EURASIP Journal on Wireless Communications and Networking, 2020 Cognitive radio is a technology developed for the effective use of radio spectrum sources. The spectrum sensing function plays a key role in the performance of cognitive radio networks.
K. Koçkaya, I. Develi
semanticscholar +1 more source
Spectrum sharing models in cognitive radio networks [PDF]
, 2011 Spectrum scarcity demands thinking new ways to manage the distribution of radio frequency bands so that its use is more effective. The emerging technology that can enable this paradigm shift is the cognitive radio.
Rifà Pous, Helena, Rifà Coma, Josep
core