Cache-enabled Unmanned Aerial Vehicles for Cooperative Cognitive Radio Networks

Jiachen Yang, Shuai Xiao, Bin Jiang, Houbing Song, Suleman Khan, Saif Ul Islam

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)
52 Downloads (Pure)


Cooperative cognitive radio network is a new method to alleviate the spectrum scarcity problem. Proactive content caching and UAV relaying techniques are deployed in a CRN, to enable the achievable rates for primary and secondary systems. Even though these two emerging technologies are grateful to solve the problem of spectrum scarcity, there are still open issues to influence the system performance and the utilization of spectrum. In this article, we provide an overview of the cooperation technique, including their theoretical schemes and the advanced performance in radio networks. Then, this article proposes a cache-enabled UAV cooperation scheme in CRN, which enhances the CRN's transmission capability and reduces the redundant traffic load of CRN. The experimental results show that the cache-enabled UAV scheme significantly improves the achievable rates for both systems in CCRN. In addition, we present future work related to content caching, deployment of UAVs and CCRN to support radio networks.
Original languageEnglish
Pages (from-to)155-161
Number of pages7
JournalIEEE Wireless Communications
Issue number2
Early online date3 Mar 2020
Publication statusPublished - Apr 2020


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