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Trends and Applications for Cognitive Radio [PDF]

open access: yesJournal of Computer Networks and Communications, 2012
Editorial
Enrico Del Re   +2 more
openaire   +4 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

Repairing Confident Information Coverage Holes for Big Data Collection in Large-Scale Heterogeneous Wireless Sensor Networks

open access: yesIEEE Access, 2019
The quality of service (QoS) and lifetime of wireless sensor networks (WSNs) are severely degraded by coverage holes generated by random deployment or battery exhaustion of sensors. This work firstly introduces a novel confident information coverage CIC)
Jie Feng, Hongbin Chen
doaj   +1 more source

Cognitive Radio

open access: yes2020 2nd Al-Noor International Conference for Science and Technology (NICST), 2020
Day by day, there is increasing demand for high data rates it causes lack of radio spectrum for the new emerging technologies in the area of wireless communications. So, it is, must use spectrum efficiently, i.e. proper spectrum management. Spectrum management is responsible for the spectrum deficiency.
Rajeshree Raut   +2 more
  +5 more sources

Cognitive radio networks

open access: yes2012 9th International Conference on Communications (COMM), 2012
Cognitive Radio Networks (CRNs) are emerging as a solution to increase the spectrum utilization by using unused or less used spectrum in radio environments. The basic idea is to allow unlicensed users access to licensed spectrum, under the condition that the interference perceived by the licensed users is minimal.
openaire   +3 more sources

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Eigenvalue Based Detection by Combining Eigenvector-Correlated Signal in Low SNR Environment

open access: yesIET Signal Processing
Eigenvalue detection is extensively utilized in numerous applications, including spectrum sensing in cognitive radio. However, the characteristics of the Tracy–Widom (TW2) distribution and its lack of accurate close-form expression limit the detection ...
Wei Ge   +4 more
doaj   +1 more source

Spectral-Energy Efficiency Tradeoff in Relay-Aided Massive MIMO Cellular Networks With Pilot Contamination

open access: yesIEEE Access, 2016
This paper concerns with a relay-aided massive multiple input multiple output (MIMO) cellular network. The exact closed-form expressions of both spectral efficiency (SE) and energy efficiency (EE) are obtained for downlink single-cell multi-user multi ...
Jing Chen   +3 more
doaj   +1 more source

Cognitive radio networks

open access: yesACM SIGCOMM Computer Communication Review, 2013
A large volume of research has been conducted in the cognitive radio (CR) area the last decade. However, the deployment of a commercial CR network is yet to emerge. A large portion of the existing literature does not build on real world scenarios, hence, neglecting various important aspects of commercial telecommunication networks.
Konstantinos Pelechrinis   +3 more
openaire   +4 more sources

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