Results 21 to 30 of about 25,855 (301)
Optimizing cooperative cognitive radio networks with opportunistic access [PDF]
, 2012 Optimal resource allocation for cooperative cognitive radio networks with opportunistic access to the licensed spectrum is studied. Resource allocation is based on minimizing the symbol error rate at the receiver.
Radaydeh, Redha M. +11 more
core +1 more source
Sensors, 2017 The performance of a passive radar network can be greatly improved by an optimal radar network structure. Generally, radar network structure optimization consists of two aspects, namely the placement of receivers in suitable places and selection of ...
Rui Xie +3 more
doaj +1 more source
On the Security of Cognitive Radio Networks [PDF]
IEEE Transactions on Vehicular Technology, 2015 Cognitive radio has emerged as an essential recipe for future high-capacity, high-coverage multitier hierarchical networks. Securing data transmission in these networks is of the utmost importance. In this paper, we consider the cognitive wiretap channel and propose multiple antennas to secure the transmission at the physical layer, where the ...
Maged Elkashlan +4 more
openaire +2 more sources
Noncooperative equilibrium solutions for spectrum access in distributed cognitive radio networks [PDF]
, 2008 This paper considers the problem of channel selection and dynamic spectrum access in distributed cognitive radio networks. The ability of a cognitive radio to adaptively switch between channels offers tremendous scope to optimize performance.
Zhong Fan +9 more
core +1 more source
Sensors, 2023 The aim of this systematic review was to identify the correlations between spectrum sensing, clustering algorithms, and energy-harvesting technology for cognitive-radio-based internet of things (IoT) networks in terms of deep-learning-based ...
Xavier Fernando, George Lăzăroiu
doaj +1 more source
Security in cognitive radio networks [PDF]
2014 48th Annual Conference on Information Sciences and Systems (CISS), 2014 Submitted to CISS ...
openaire +2 more sources
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
Matching theory for cognitive radio networks: An overview
ICT Express, 2019 Cognitive radio networks have recently emerged as a novel and efficient technology to confront the scarcity of spectrum bands. While discussing the spectrum sharing and resource management in cognitive radio networks, many recent research works address ...
Sayantan Chowdhury
doaj +1 more source
Cognitive radio sensor networks
IEEE 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
On Detecting Termination in Cognitive Radio Networks [PDF]
2011 IEEE 17th Pacific Rim International Symposium on Dependable Computing, 2011 SUMMARYThe cognitive radio networks are an emerging wireless communication and computing paradigm. The cognitive radio nodes execute computations on multiple heterogeneous channels in the absence of licensed users (a.k.a. primary users) of those bands. The termination detection is a fundamental and non‐trivial problem in distributed systems.
Shantanu Sharma 0001 +1 more
openaire +2 more sources