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Published in: Wireless Networks 4/2022

18-03-2022 | Original Paper

Performance analysis of intra-frame cooperative spectrum sensing in cognitive UAV networks

Authors: Jun Wu, Haoyuan Ge

Published in: Wireless Networks | Issue 4/2022

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Abstract

Cognitive radio (CR) is a revolutionary paradigm to migrate the spectrum scarcity problem in wireless networks. In view of the spectrum scarcity of unmanned aerial vehicles (UAVs) communication system, cooperative spectrum sensing (CSS) has emerged as a key function of CR to identify the available spectrum for UAV sensing nodes. However, the flexible locations of flying UAVs make CSS a difficult task, which in turn makes it difficult for CSS performance to meet UAV requirements. In this paper, we design an intra-frame cooperation way to achieve CSS for cognitive UAV networks (CUAVNs), which provides the same CSS performance as the traditional inter-frame cooperation and higher throughput for UAVs. Furthermore, considering certain performance requirements in CUAVNs, we propose sequential probability ratio test (SPRT)-based CSS method, and further make an in-depth analysis of relationship among performance indices of CSS and approximate the actual detection performance and the stopping time by ignoring the excess over the boundaries and the random walk. Finally, numerical results corroborate the effectiveness and correctness of our theoretical analysis, while comparison results also represent the superiority of our proposal.

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Metadata
Title
Performance analysis of intra-frame cooperative spectrum sensing in cognitive UAV networks
Authors
Jun Wu
Haoyuan Ge
Publication date
18-03-2022
Publisher
Springer US
Published in
Wireless Networks / Issue 4/2022
Print ISSN: 1022-0038
Electronic ISSN: 1572-8196
DOI
https://doi.org/10.1007/s11276-022-02931-z

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