Zobrazeno 1 - 10
of 784
pro vyhledávání: '"GNU Radio"'
Publikováno v:
Applied Sciences, Vol 14, Iss 23, p 10841 (2024)
In the current context of global communications, HF (High Frequency) NVIS (Near Vertical Incidence Skywave) data networks can be of strategic importance, providing short- and medium-range communication capabilities independent of terrestrial configur
Externí odkaz:
https://doaj.org/article/3c93ab559b444926855d61cb73074b42
Publikováno v:
Sensors, Vol 24, Iss 15, p 4825 (2024)
The number of applications of low-power wide-area networks (LPWANs) has been growing quite considerably in the past few years and so has the number of protocol stacks. Despite this fact, there is still no fully open LPWAN protocol stack available to
Externí odkaz:
https://doaj.org/article/fd6facf3b44b436fb32ae6a77193b413
Publikováno v:
Engineering and Technology Journal, Vol 41, Iss 2, Pp 435-445 (2023)
In this paper, the software and hardware of a software-defined radio (SDR) platform are used to implement and verify the blind real-time sensing act of intelligent collaborative spectrum sensing based on a new theoretical formula for constructing den
Externí odkaz:
https://doaj.org/article/6bd3cb51456646e7939095d2384a0d76
Autor:
Mihai Petru Stef, Zsolt Alfred Polgar
Publikováno v:
Information, Vol 15, Iss 1, p 62 (2024)
With the constant growth of software-defined radio (SDR) technologies in fields related to wireless communications, the need for efficient ways of testing and evaluating the physical-layer (PHY) protocols developed for these technologies in real-life
Externí odkaz:
https://doaj.org/article/1aa07d734c08458789ed7107ec70ebc8
Akademický článek
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Publikováno v:
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, Vol 11, Iss 3, Pp 199-207 (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. To mitigate this issue, a cognitive radio (CR) system is pr
Externí odkaz:
https://doaj.org/article/d285ec93f5114f51a58c997af920dc9e
Publikováno v:
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), Vol 15, Iss 3, Pp 104-108 (2021)
Kelangkaan dalam pengajuan sebuah saluran nirkabel (frekuensi) menjadi dilema untuk penyedia jasa maupun operator telekomunikasi. Teknologi radio kognitif memberikan solusi untuk meningkatkan efisiensi penggunaan spektrum secara signifikan. Radio kog
Externí odkaz:
https://doaj.org/article/6b2f677c986a4b0b9e309ad4c93aa1c3
Akademický článek
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Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 20, Iss 3, Pp 542-555 (2021)
Abstract A low-cost spectrum analyzer is presented, based on a commercial software defined radio and an open-source application package. Fundamentals regarding the receiving operation and its sensitivity are presented, along with measurements, of two
Externí odkaz:
https://doaj.org/article/6aa69ef2999540159261df65dffaeb41
Autor:
Florin Radu, Petru A. Cotfas, Marian Alexandru, Titus C. Bălan, Vlad Popescu, Daniel T. Cotfas
Publikováno v:
Applied Sciences, Vol 13, Iss 8, p 5199 (2023)
In this paper, we present the implementation of a system that identifies the modulation of complex radio signals. This is realized using an artificial intelligence model developed, trained, and integrated with Microsoft Azure cloud. We consider that
Externí odkaz:
https://doaj.org/article/c06dade8b4b54fb0b278923439d79698