Results 41 to 50 of about 438,323 (269)

Cooperative Spectrum Sensing in Cognitive Radio Networks: A Survey on Machine Learning-based Methods

Journal of Telecommunications and Information Technology, 2020
The continuous growth of demand experienced by wireless networks creates a spectrum availability challenge. Cognitive radio (CR) is a promising solution capable of overcoming spectrum scarcity.
Sundous Khamayseh, Alaa Halawani
doaj   +1 more source

Trusted cognitive radio networking [PDF]

Wireless Communications and Mobile Computing, 2009
AbstractNetworking cognitive radios and nodes from primary system (PS) results in a heterogeneous coexisting multi‐radio wireless network, so that significant network throughput gain can be achieved. However, by investigating cognitive radio network (CRN) architecture, the links in CRNs are unlikely to support complete security check due to link ...
Chen, K.C., Chen, P.Y., Prasad, N., Liang, Y.C., Sun, S.   +4 more
openaire   +2 more sources

Energy- and Cognitive-Radio-Aware Routing in Cognitive Radio Sensor Networks

International Journal of Distributed Sensor Networks, 2012
Cognitive radio sensor networks (CRSNs) are the next generation wireless sensor networks (WSNs) that mitigate overcrowded unlicensed spectrum bands by opportunistically using temporally unoccupied unlicensed and licensed spectrum bands. In this paper, we
Christian H. W. Oey, Ivan Christian, Sangman Moh   +2 more
doaj   +1 more source

A Bespoke Programmable Interpenetrating Elastomer Network Composite Laryngeal Stent for Expedited Paediatric Laryngotracheal Reconstruction

Advanced Functional Materials, EarlyView.
A programmable interpenetrating double‐network architecture, created via 3D‐TIPS printing and resin infusion, synergistically combines thermoplastic and thermosetting elastomers to balance structural rigidity and surface softness—crucial for paediatric laryngeal stents.
Elizabeth F. Maughan, Lei Wu, Dong Zhang, Linxiao Wu, Graca Ferreira Vaz Pinto Mendes, Wanqiao J. Tu, Heping Ma, Toby J. Proctor, Colin R. Butler, Thomas Kjærgaard, Mark W. Lowdell, Martin A. Birchall, Robert E. Hynds, Richard Hewitt, Wenhui Song   +14 more
wiley   +1 more source

DCEEMR: A Delay-Constrained Energy Efficient Multicast Routing Algorithm in Cognitive Radio Ad Hoc Networks

International Journal of Distributed Sensor Networks, 2014
We discuss the delay-constrained energy efficient multicast routing problem in cognitive radio ad hoc networks. A cognitive radio ad hoc network is a wireless multihop network established by secondary users on varying available spectrum bands.
Xuna Miao, Miaolei Deng
doaj   +1 more source

Channel Assortment Strategy for Reliable Communication in Multi-Hop Cognitive Radio Networks

, 2010
In this paper, we propose a channel assortment strategy for Reliable Communication in Multi-Hop Cognitive Radio ...
Rehmani, Mubashir Husain
core   +2 more sources

Integrative Approaches for DNA Sequence‐Controlled Functional Materials

Advanced Functional Materials, EarlyView.
DNA is emerging as a programmable building block for functional materials with applications in biomimicry, biochemical, and mechanical information processing. The integration of simulations, experiments, and machine learning is explored as a means to bridge DNA sequences with macroscopic material properties, highlighting current advances and providing ...
Aaron Gadzekpo, Ewa Anna Oprzeska‐Zingrebe, Mariana Kozlowska, Lennart Hilbert, Iliya D. Stoev   +4 more
wiley   +1 more source

Applications of Cognitive Radio Networks [PDF]

, 2012
The term cognitive radio (CR), originally coined in the late 1990s, envisaged a radio that is aware of its operational environment so that it can dynamically and autonomously adjust its radio-operating parameters to accordingly adapt to the different ...
Doyle, Linda, Perez-Romero, Jordi, Vuran, Mehmet C.   +2 more
core   +1 more source

Algorithms for cognitive radio network and cognitive radio network cloud [PDF]

, 2021
Η πρωτοτυπία της παρούσας διατριβής έγκειται στο ότι πρότεινε και περιέγραψε ένα πλαίσιο δικτύου αναφοράς για Έλεγχο Πρόσβασης στο Μέσο για Γνωστικά Ασύρματα Δίκτυα και Νέφος και SDR Υπηρεσίες και για Έλεγχο Πρόσβασης στο Μέσο για Γνωστικά Ασύρματα Δίκτυα και Νέφος και SDR Αφηρημένες Υπηρεσίες και ολοκλήρωση τους και ανάπτυξη τους σε όλα κατά OSI ...
openaire   +1 more source

Opportunistic Ambient Backscatter Communication in RF-Powered Cognitive Radio Networks

IEEE Wireless Communications and Networking Conference, 2019
We propose a novel opportunistic ambient backscatter communication (ABC) framework for radio frequency (RF)-powered cognitive radio (CR) networks. The proposed framework considers opportunistic spectrum sensing integrated with ABC and harvest-then ...
Rajalekshmi Kishore, Sanjeev Gurugopinath, P. Sofotasios, S. Muhaidat, N. Al-Dhahir   +4 more
semanticscholar   +1 more source