Spectrum Sensing, Clustering Algorithms, and Energy-Harvesting Technology for Cognitive-Radio-Based Internet-of-Things Networks. [PDF]
Sensors (Basel), 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 ...
Fernando X, Lăzăroiu G.
europepmc +2 more sources
An Overview of Cognitive Radio Technology and Its Applications in Civil Aviation [PDF]
Sensors, 2023 This paper provides an overview of cognitive radio technology and its applications in the field of civil aviation. Cognitive radio technology is a relatively new and emerging field that allows for dynamic spectrum access and efficient use of spectrum ...
Ruikang Zheng, Xuan Li, Yudong Chen
doaj +2 more sources
Cooperative Multi-Agent Reinforcement-Learning-Based Distributed Dynamic Spectrum Access in Cognitive Radio Networks [PDF]
IEEE Internet of Things Journal, 2021 With the development of wireless communication and Internet of Things (IoT), there are massive wireless devices that need to share the limited spectrum resources.
Xiang Tan +7 more
semanticscholar +1 more source
Secure and Energy Efficient Transmission for IRS-Assisted Cognitive Radio Networks [PDF]
IEEE Transactions on Cognitive Communications and Networking, 2021 The spectrum efficiency (SE) and security of the secondary users (SUs) in the cognitive radio networks (CRNs) have become two main issues due to the limitation interference to the primary users (PUs) and the shared spectrum with the PUs.
Xuewen Wu +5 more
semanticscholar +1 more source
Polyphonic Sound Event Detection Using Temporal-Frequency Attention and Feature Space Attention
Sensors, 2022 The complexity of polyphonic sounds imposes numerous challenges on their classification. Especially in real life, polyphonic sound events have discontinuity and unstable time-frequency variations.
Ye Jin +4 more
doaj +1 more source
A review of spectrum sensing in modern cognitive radio networks
Telecommunications Systems, 2023 Cognitive radio network (CRN) is a pioneering technology that was developed to improve efficiency in spectrum utilization. It provides the secondary users with the privilege to transmit on the licensed parts of the spectrum if the licensed user is not ...
M. Muzaffar, Rula Sharqi
semanticscholar +1 more source
LEO laser microwave hybrid inter-satellite routing strategy based on modified Q-routing algorithm
EURASIP Journal on Wireless Communications and Networking, 2022 Low earth orbit (LEO) satellite communication networks require huge load capacity and information processing speed to carry global communication traffic. Inter-satellite links and the on-board processing are the key technologies to achieve this goal, but
Fei Zheng +4 more
doaj +1 more source
IEEE Signal Processing Magazine, 2008 Radio regulatory bodies are recognizing that the rigid spectrum assignment granting exclusive use to licensed services is highly inefficient, due to the high variability of the traffic statistics across time, space, and frequency. Recent Federal Communications Commission (FCC) measurements show that, in fact, the spectrum usage is typically ...
Gesualdo Scutari +2 more
openaire +3 more sources
Spectrum Sensing for Cognitive Radio: Recent Advances and Future Challenge
Italian National Conference on Sensors, 2021 Spectrum Sensing (SS) plays an essential role in Cognitive Radio (CR) networks to diagnose the availability of frequency resources. In this paper, we aim to provide an in-depth survey on the most recent advances in SS for CR.
A. Nasser +4 more
semanticscholar +1 more source
Resource Allocation for IRS-Assisted Full-Duplex Cognitive Radio Systems [PDF]
IEEE Transactions on Communications, 2020 In this article, we investigate the resource allocation design for intelligent reflecting surface (IRS)-assisted full-duplex (FD) cognitive radio systems. In particular, a secondary network employs an FD base station (BS) for serving multiple half-duplex
Dongfang Xu +4 more
semanticscholar +1 more source