Results 21 to 30 of about 391,221 (333)

Outage probability analysis of vehicular communication system with two-way AF cooperation

open access: yesDianzi Jishu Yingyong, 2018
In vehicular communication system, two-way cooperative communication can improve system performance. However, vehicle mobile communication will cause the two-way link correlation and thus reduce the system outage performance.
Lin Xiaoyu, Qiu Bin, Xiao Hailin
doaj   +1 more source

Target detection based on generalized Bures–Wasserstein distance

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
Radar target detection with fewer echo pulses in non-Gaussian clutter background is a challenging problem. In this instance, the conventional detectors using coherent accumulation are not very satisfactory.
Zhizhong Huang, Lin Zheng
doaj   +1 more source

Adaptive Diversity Algorithm Based on Block STBC for Massive MIMO Link Misalignment in UWOC Systems

open access: yesJournal of Marine Science and Engineering, 2023
In the past few years, underwater wireless optical communication (UWOC) has become a promising wireless communication technology in the underwater environment.
Yanlong Li   +5 more
doaj   +1 more source

A Machine Anomalous Sound Detection Method Using the lMS Spectrogram and ES-MobileNetV3 Network

open access: yesApplied Sciences, 2023
Unsupervised anomalous sound detection by machines holds significant importance within the realm of industrial automation. Currently, the task of machine-based anomalous sound detection in complex industrial settings is faced with issues such as the ...
Mei Wang   +7 more
doaj   +1 more source

Noncooperative equilibrium solutions for spectrum access in distributed cognitive radio networks [PDF]

open access: yes, 2008
This paper considers the problem of channel selection and dynamic spectrum access in distributed cognitive radio networks. The ability of a cognitive radio to adaptively switch between channels offers tremendous scope to optimize performance.
Armour, SMD   +4 more
core   +2 more sources

Performance of a TV white space database with different terrain resolutions and propagation models [PDF]

open access: yes, 2017
Cognitive Radio has now become a realistic option for the solution of the spectrum scarcity problem in wireless communication. TV channels (the primary user) can be protected from secondary-user interference by accurate prediction of TV White Spaces ...
Alfahad, O.   +3 more
core   +3 more sources

Cognitive Radio

open access: yesComputer and Information Science, 2008
The radio frequency spectrum is a scarce natural resource and its efficient use is of the utmost importance. The spectrum bands are usually licensed to certain services, such as mobile, fixed, broadcast, and satellite, to avoid harmful interference between different networks to affect users.
Kevin Curran   +2 more
openaire   +4 more sources

Interference Alignment for Cognitive Radio Communications and Networks: A Survey [PDF]

open access: yes, 2019
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).Interference ...
Abdulkadir, Yusuf   +2 more
core   +2 more sources

Cooperation and Cognitive Radio [PDF]

open access: yes2007 IEEE International Conference on Communications, 2007
Cooperation is increasingly regarded as a key technology for tackling the challenges of a practical implementation of cognitive radio. In this paper, we first give a brief overview of the envisioned applications of cooperative technology to cognitive radio, distinguishing among cooperative sensing for detection of the primary activity, cooperative ...
GAMBINI, JONATHAN   +3 more
openaire   +2 more sources

Channel Model and Signal-Detection Algorithm for the Combined Effects of Turbulence and Link Misalignment in Underwater Optical Massive MIMO Systems

open access: yesJournal of Marine Science and Engineering, 2023
In recent years, underwater wireless optical communication (UWOC) has become a potential wireless carrier candidate for signal transmission in water mediums such as oceans.
Jielin Fu   +3 more
doaj   +1 more source

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