FPGA implementation of genetic algorithm to detect optimal user by cooperative spectrum sensing
Sign Up to like & getrecommendations! Published in 2019 at "ICT Express"
DOI: 10.1016/j.icte.2017.11.015
Abstract: Abstract The major task for cognitive radio (CR) systems is to sense the spectrum holes reliably and make the secondary user share the spectrum efficiently and effectively with the primary users. The Cognitive Radio cannot… read more here.
Keywords: genetic algorithm; algorithm detect; detect optimal; secondary users ... See more keywords
Secure Energy Efficiency for NOMA Based Cognitive Radio Networks With Nonlinear Energy Harvesting
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2876970
Abstract: In order to improve the spectrum efficiency and secrecy energy efficiency, in this paper, we propose a non-orthogonal multiple access (NOMA)-based secure scheme for cognitive radio networks. In the proposed scheme, the secondary users harvest… read more here.
Keywords: energy; radio; energy harvesting; efficiency ... See more keywords
Optimal Pricing Strategies in Cognitive Radio Networks With Heterogeneous Secondary Users and Retrials
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DOI: 10.1109/access.2019.2903085
Abstract: In a cognitive radio (CR) system, excessive access services for secondary users (SUs) lead to a substantial increase in congestion and the retrial phenomenon, both of which degrade the performance of CR networks, especially in… read more here.
Keywords: sus; revenue optimal; price; secondary users ... See more keywords
Improved Resource Allocation Model for Reducing Interference Among Secondary Users in TV White Space for Broadband Services
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3220628
Abstract: In recent years, the Television White Space has attracted the interest of many researchers due to its propagation characteristics obtainable between 470MHz and 790MHz spectrum bands. However, aggregate interference increase when secondary users in wireless… read more here.
Keywords: secondary users; among secondary; white space; resource allocation ... See more keywords
Gains and limits of diversity techniques in cognitive radio systems
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Communications and Networks"
DOI: 10.1109/jcn.2017.000019
Abstract: Cognitive radio (CR) is one of promising techniques to alleviate the spectrum scarcity resulting from the increasing demand for wireless services and the exclusive spectrum allocation policy. CR allows unlicensed users (secondary users) to access… read more here.
Keywords: primary users; diversity techniques; diversity; cognitive radio ... See more keywords
Maximizing Secondary Users’ Sum-Throughput in an In-Band Full-Duplex Cognitive Wireless Powered Backscatter Communication Network
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Systems Journal"
DOI: 10.1109/jsyst.2021.3124097
Abstract: This article studies the secondary users’ sum-throughput in an in-band full-duplex (I-FD) cognitive wireless powered backscatter communication network. The secondary network consists of a hybrid access point (H-AP) and a finite number of geographically distributed… read more here.
Keywords: secondary users; network; backscatter communication; users sum ... See more keywords
Cooperative Sensing With Heterogeneous Spectrum Availability in Cognitive Radio
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Cognitive Communications and Networking"
DOI: 10.1109/tccn.2021.3085769
Abstract: Cooperative spectrum sensing significantly improves sensing reliability in cognitive radio networks. However, in large-scale secondary networks, spectrum availability is heterogeneous, i.e., secondary users at different locations may observe different primary users, thus having different spectrum… read more here.
Keywords: spectrum availability; secondary users; availability; cooperative sensing ... See more keywords
Preserving the Location Privacy of Secondary Users in Cooperative Spectrum Sensing
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Information Forensics and Security"
DOI: 10.1109/tifs.2016.2622000
Abstract: Cooperative spectrum sensing, despite its effectiveness in enabling dynamic spectrum access, suffers from location privacy threats, merely because secondary users (SUs)' sensing reports that need to be shared with a fusion center to make spectrum… read more here.
Keywords: spectrum sensing; cooperative spectrum; privacy; location privacy ... See more keywords
Dynamic Spectrum Access Networks With Heterogeneous Users: How to Price the Spectrum?
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2018.2818749
Abstract: In a pricing-based spectrum trading market, an interesting issue is to study how secondary users make their selections in a rational manner when there are available spectrum of different qualities in the market. In this… read more here.
Keywords: spectrum trading; spectrum; dynamic spectrum; pricing ... See more keywords