Journal ArticleDOI
Advances on Spectrum Sensing for Cognitive Radio Networks: Theory and Applications
Abdelmohsen Ali,Walaa Hamouda +1 more
TLDR
This survey paper focuses on the enabling techniques for interweave CR networks which have received great attention from standards perspective due to its reliability to achieve the required quality-of-service.Abstract:
Due to the under-utilization problem of the allocated radio spectrum, cognitive radio (CR) communications have recently emerged as a reliable and effective solution. Among various network models, this survey paper focuses on the enabling techniques for interweave CR networks which have received great attention from standards perspective due to its reliability to achieve the required quality-of-service. Spectrum sensing provides the essential information to enable this interweave communications in which primary and secondary users are not allowed to access the medium concurrently. Several researchers have already considered various aspects to realize efficient techniques for spectrum sensing. In this direction, this survey paper provides a detailed review of the state-of-the-art related to the application of spectrum sensing in CR communications. Starting with the basic principles and the main features of interweave communications, this paper provides a classification of the main approaches based on the radio parameters. Subsequently, we review the existing spectrum sensing works applied to different categories such as narrowband sensing, narrowband spectrum monitoring, wideband sensing, cooperative sensing, practical implementation considerations for various techniques, and the recent standards that rely on the interweave network model. Furthermore, we present the latest advances related to the implementation of the legacy spectrum sensing approaches. Finally, we conclude this survey paper with some suggested open research challenges and future directions for the CR networks in next generation Internet-of-Things applications.read more
Citations
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Journal ArticleDOI
LEO Satellite Constellation for Internet of Things
TL;DR: An overview of the architecture of the LEO satellite constellation-based IoT including the following topics: LEOatellite constellation structure, efficient spectrum allocation, heterogeneous networks compatibility, and access and routing protocols is provided.
Journal ArticleDOI
Enabling Technologies for Ultra-Reliable and Low Latency Communications: From PHY and MAC Layer Perspectives
Gordon J. Sutton,Jie Zeng,Ren Ping Liu,Wei Ni,Diep N. Nguyen,Beeshanga Abewardana Jayawickrama,Xiaojing Huang,Mehran Abolhasan,Zhang Zhang,Eryk Dutkiewicz,Tiejun Lv +10 more
TL;DR: This paper evaluates the relevant PHY and MAC techniques for their ability to improve the reliability and reduce the latency and identifies that enabling long-term evolution to coexist in the unlicensed spectrum is also a potential enabler of URLLC in theUnlicensed band.
Journal ArticleDOI
Dynamic Spectrum Sharing in 5G Wireless Networks With Full-Duplex Technology: Recent Advances and Research Challenges
Shree Krishna Sharma,Tadilo Endeshaw Bogale,Long Bao Le,Symeon Chatzinotas,Xianbin Wang,Bjorn Ottersten +5 more
TL;DR: A novel communication framework to enable CST in DSS systems by employing a power control-based SI mitigation scheme is proposed and a throughput performance analysis of this proposed framework is carried out.
Journal ArticleDOI
Full-Duplex Communication in Cognitive Radio Networks: A Survey
TL;DR: This paper surveys the spectrum sensing approaches and security requirements for FD-CRNs, and surveys major advances in FD medium access control protocols as well as open issues, challenges, and future research directions to support the FD operation in CRNs.
Journal ArticleDOI
Deep CM-CNN for Spectrum Sensing in Cognitive Radio
TL;DR: A deep neural network is used to intelligently explore the data-driven test statistic in spectrum sensing, where a DNN-based likelihood ratio test (DNN-LRT) is derived to guarantee the optimality of the designed test statistic.
References
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