Results 31 to 40 of about 2,658,834 (309)

Energy-efficient power allocation for massive MIMO-enabled multi-way AF relay networks with channel aging

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
In this paper, we consider a massive MIMO-enabled multi-way amplify-and-forward relay network with channel aging, where multiple users mutually exchange information via an intermediate relay equipped with massive antennas.
Fangqing Tan   +3 more
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

NOMA in Cooperative Underlay Cognitive Radio Networks Under Imperfect SIC

open access: yesIEEE Access, 2020
In conventional cognitive radio (CR), the users in secondary network (SN) can only access the idle spectrum when users in primary network (PN) are absent.
D. Do, Anh-Tu Le, Byung Moo Lee
semanticscholar   +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

On the capacity of partially cognitive radios [PDF]

open access: yes2009 IEEE International Symposium on Information Theory, 2009
This paper considers the problem of cognitive radios with partial-message information. Here, an interference channel setting is considered where one transmitter (the "cognitive" one) knows the message of the other ("legitimate" user) partially. An outer bound on the capacity region of this channel is found for the "weak" interference case (where the ...
Goochul Chung   +3 more
openaire   +2 more sources

Spectrum sensing in cognitive radio networks: threshold optimization and analysis

open access: yesEURASIP 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

Trends and Applications for Cognitive Radio [PDF]

open access: yesJournal of Computer Networks and Communications, 2012
Editorial
Enrico Del Re   +2 more
openaire   +3 more sources

A KNN Learning Algorithm for Collusion-Resistant Spectrum Auction in Small Cell Networks

open access: yesIEEE Access, 2018
Existing spectrum auction algorithms rarely consider the collusion-resistant, which decreases the spectrum allocation efficiency. In this paper, we propose a collusion-resistant spectrum auction algorithm based on K-Nearest Neighbor (KNN) learning in ...
Feng Zhao, Qingqing Tang
doaj   +1 more source

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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