Results 1 to 10 of about 215,250 (265)

Cognitive radio network in vehicular ad hoc network (VANET): A survey [PDF]

open access: yesCogent Engineering, 2016
Cognitive radio network and vehicular ad hoc network (VANET) are recent emerging concepts in wireless networking. Cognitive radio network obtains knowledge of its operational geographical environment to manage sharing of spectrum between primary and ...
Joanne Mun-Yee Lim   +3 more
doaj   +6 more sources

GRU-SVM Based Threat Detection in Cognitive Radio Network [PDF]

open access: yesSensors, 2023
Cognitive radio networks are vulnerable to numerous threats during spectrum sensing. Different approaches can be used to lessen these attacks as the malicious users degrade the performance of the network. The cutting-edge technologies of machine learning
Evelyn Ezhilarasi I   +1 more
doaj   +2 more sources

Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network [PDF]

open access: yesRadioengineering, 2012
This paper studies the benefits that power control and antenna directivity can bring to the capacity of a multiuser cognitive radio network. The main objective is to optimize the secondary network sum rate under the capacity constraint of the primary ...
S. Montejo   +3 more
doaj   +2 more sources

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.
Pelechrinis, Konstantinos   +3 more
  +7 more sources

Energy-efficient distributed heterogeneous clustered spectrum-aware cognitive radio sensor network for guaranteed quality of service in smart grid

open access: yesInternational Journal of Distributed Sensor Networks, 2021
The development of a modern electric power grid has triggered the need for large-scale monitoring and communication in smart grids for efficient grid automation.
Emmanuel Ogbodo   +2 more
doaj   +1 more source

Cognitive Radio Networks [PDF]

open access: yesIEEE Signal Processing Magazine, 2008
In recent years, the development of intelligent, adaptive wireless devices called cognitive radios, together with the introduction of secondary spectrum licensing, has led to a new paradigm in communications: cognitive networks. Cognitive networks are wireless networks that consist of several types of users: often a primary user (the primary license ...
Natasha Devroye, Mai Vu, Vahid Tarokh
openaire   +2 more sources

Data Security of a Cognitive Radio Network for Multicriteria Secondary Users [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2022
Cognitive radio is a technology that has come to solve the issue of spectrum scarcity and improve spectrum utilization through its dynamic spectrum access technique.
SEGHIRI Naouel   +5 more
doaj  

An Intelligent Anti-Jamming Scheme for Cognitive Radio Based on Deep Reinforcement Learning

open access: yesIEEE Access, 2020
Cognitive radio network is an intelligent wireless communication system which can adjust its transmission parameters according to the environment thanks to its learning ability.
Jianliang Xu   +3 more
doaj   +1 more source

Primary user emulation characterization in mobile cognitive radio networks

open access: yesVisión Electrónica, 2020
This paper presents the results of the characterization of the attack known as the "primary user emulation" in mobile cognitive radio networks performing the implementation and testing.
Ernesto Cadena-Muñoz   +2 more
doaj   +1 more source

Cognitive radio sensor networks

open access: yesIEEE Network, 2009
Dynamic spectrum access stands as a promising and spectrum-efficient communication approach for resource-constrained multihop wireless sensor networks due to their event-driven communication nature, which generally yields bursty traffic depending on the event characteristics.
Akan, Ozgur B.   +2 more
openaire   +3 more sources

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