Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Dimitrie C. Popescu"'
Publikováno v:
IEEE Access, Vol 10, Pp 38565-38574 (2022)
Energy detection (ED) represents a low complexity approach used by secondary users (SU) to sense spectrum occupancy by primary users (PU) in cognitive radio (CR) systems. In this paper, we present a new algorithm that senses the spectrum occupancy by
Externí odkaz:
https://doaj.org/article/67c48d7f32e940e581137980ab99e2d8
Publikováno v:
Sensors, Vol 23, Iss 12, p 5735 (2023)
This paper presents a novel deep-learning (DL)-based approach for classifying digitally modulated signals, which involves the use of capsule networks (CAPs) together with the cyclic cumulant (CC) features of the signals. These were blindly estimated
Externí odkaz:
https://doaj.org/article/f511ddc5ddf840c1bf492d3c3c52e3a6
Autor:
Stephan Olariu, Dimitrie C. Popescu
Publikováno v:
Sensors, Vol 21, Iss 22, p 7652 (2021)
It has been widely recognized that one of the critical services provided by Smart Cities and Smart Communities is Smart Mobility. This paper lays the theoretical foundations of SEE-TREND, a system for Secure Early Traffic-Related EveNt Detection in S
Externí odkaz:
https://doaj.org/article/fd03f1f4ebd84669b1ccb9acc24e648d
Three-Event Energy Detection with Adaptive Threshold for Spectrum Sensing in Cognitive Radio Systems
Publikováno v:
Sensors, Vol 20, Iss 13, p 3614 (2020)
Implementation of dynamic spectrum access (DSA) in cognitive radio (CR) systems requires the unlicensed secondary users (SU) to implement spectrum sensing to monitor the activity of the licensed primary users (PU). Energy detection (ED) is one of the
Externí odkaz:
https://doaj.org/article/a5fc2e5b7961465fb3ed92633843e282
Publikováno v:
Sensors; Volume 23; Issue 12; Pages: 5735
This paper presents a novel deep-learning (DL)-based approach for classifying digitally modulated signals, which involves the use of capsule networks (CAPs) together with the cyclic cumulant (CC) features of the signals. These were blindly estimated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::fa7792682d209c699affa559cce6da9f
Autor:
Dimitrie C. Popescu, Rolland Vida
Publikováno v:
Infocommunications journal. 14:16-27
The commercial success of cellular phone systems during the late 1980s and early 1990 years heralded the wireless revolution that became apparent at the turn of the 21st century and has led the modern society to a highly interconnected world where ub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92b18cc9d9ad21d490fefe5fb200516c
https://doi.org/10.36244/icj.2022.3.3
https://doi.org/10.36244/icj.2022.3.3
Autor:
Jason S. Harris, Dimitrie C. Popescu
Publikováno v:
OCEANS 2022, Hampton Roads.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8148d706f616126c7f42fc7d31a25771
https://doi.org/10.1109/oceans47191.2022.9977389
https://doi.org/10.1109/oceans47191.2022.9977389
Autor:
Dimitrie C. Popescu, Chris A. Rogers
Publikováno v:
IEEE Systems Journal. 15:1381-1389
The article presents a multiple-input–multiple-output (MIMO) radar system for which transmit-receive beamforming in conjunction with a compact frequency domain representation of the radar signals yields a sparse representation of the radar scene. C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fc41b8ce3754f84b60f5351eaa53c37
https://doi.org/10.1109/jsyst.2020.3000500
https://doi.org/10.1109/jsyst.2020.3000500
Publikováno v:
IEEE Electromagnetic Compatibility Magazine. 9:54-61
The paper discusses the use of affordable software-defined radio (SDR) platforms for measuring and characterizing man-made noise with impulsive components using Middleton noise models. For illustration, numerical results from a case study are present
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32bf60e68bf8127a6cb1c21185525870
https://doi.org/10.1109/memc.2020.9327997
https://doi.org/10.1109/memc.2020.9327997
Autor:
Jason S. Harris, Dimitrie C. Popescu
Publikováno v:
SoutheastCon 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::447ff293cec4147c91a43ec498dd63b1
https://doi.org/10.1109/southeastcon48659.2022.9764026
https://doi.org/10.1109/southeastcon48659.2022.9764026