Vehicular Communications Over TV White Spaces in the Presence of Secondary Users
IEEE Access, 2019 The lack of available spectrum for wireless communications is a threat to the successful deployment of applications designed for intelligent transportation systems (ITSs).
Adriana Arteaga +2 more
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Scheduling Heterogeneous Wireless Systems for Efficient Spectrum Access
EURASIP Journal on Wireless Communications and Networking, 2010 The spectrum scarcity problem emerged in recent years, due to unbalanced utilization of RF (radio frequency) bands in the current state of wireless spectrum allocations.
Liao Shenghui, Bao Lichun
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Opportunistic Spectrum Access for UAV Communications Towards Ultra Dense Networks
IEEE Access, 2019 The growing popularity of unmanned aerial vehicle (UAV) attracts significant research interests and applications including low-altitude and airborne vehicles. Since there is no declared spectrum allocated to UAV communications, opportunistic transmission
Shan Luo +6 more
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Full-Duplex Relaying for Opportunistic Spectrum Access Under an Overall Power Constraint
IEEE Access, 2020 To meet the bold requirements of future generation networks, emerging technologies such as opportunistic spectrum access, multi-tier networks, full-duplexing and cooperative networks have to be exploited.
Anne Savard, E. Veronica Belmega
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Decentralized Opportunistic Spectrum Resources Access Model and Algorithm toward Cooperative Ad-Hoc Networks. [PDF]
PLoS ONE, 2016 Limited communication resources have gradually become a critical factor toward efficiency of decentralized large scale multi-agent coordination when both system scales up and tasks become more complex.
Ming Liu, Yang Xu, Abdul-Wahid Mohammed
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Suboptimal Approach to Distributed Detection in Cognitive Radio Networks
Journal of Telecommunications and Information Technology, 2021 In this paper a dynamic spectrum access (DSA) concept is explored for mitigating the paucity of spectral bandwidth in cognitive radio (CR) for opportunistic, dynamic access of the spectrum without any interference.
Shweta Kumari, Sirimilla Praveena
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Opportunistic spectrum access algorithm based on cross-layer optimization
Tongxin xuebao, 2010 Aiming at the opportunistic spectrum access（OSA） system with periodic channel sensing,sensing activity of secondary users was modeled and analyzed with Markov process.Combining physical layer index with MAC layer index,a cross-layer performance measure ...
ZHANG Jing, ZHU Hong-bo
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A Dual Threshold Based Opportunistic Spectrum Access Policy with Non-Ideal Spectrum Sensing
Dianxin kexue, 2014 To effectively improve the throughput performance of secondary user in cognitive networks, a dual threshold based opportunistic spectrum access policy was proposed, which could be implemented under the condition that secondary user had non-ideal spectrum
Xiaodong Peng +3 more
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Resource Allocation for Two-Way Relay Network Based on Cognitive Radio
Dianxin kexue, 2015 The resource allocation issue for sensing-based spectrum opportunistic access and sensing-based spectrum sharing access in two-way relay cognitive network with imperfect spectrum sensing was discussed.Different from the traditional resource allocation ...
Shuang Liang, Shouyi Yang, Wanming Hao
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On Using Spectrum History to Manage Opportunistic Access in Cognitive Radio Networks
IEEE Access, 2016 Cognitive radio networks (CRNs) open up the underutilized parts of the licensed spectrum for secondary reuse, so long as this secondary access does not cause harmful interference to the licensed users. Being able to run CRNs in a completely decentralized
Mohammed Hawa +3 more
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