READ ME File For 'Intelligent Caching in UAV-Aided Networks' Dataset DOI: https://doi.org/10.5258/SOTON/D2028 IEEE Transactions on Vehicular Technology (Accepted on 1 Nov 2021) Authors: Mingze Zhang, Mohammed EI-Hajjar, Soon Xin Ng The authors are with the School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK (e-mail: \{mz6u17,meh,sxn\}@soton.ac.uk). Abstract: Deployment of unmanned aerial vehicles (UAVs) as flying base stations to provide specific geographical area with air-to-ground wireless communications is expected to increase dramatically in the coming decades, owing to its flexibility, mobility and autonomy. Moreover, mobile edge computing (MEC) promises significant reduction in latency by caching popular contents at the mobile edge. In this paper, we propose a method to apply mobile edge caching on UAVs in wireless communication systems. By investigating the user request preference with the aid of latent Dirichlet allocation (LDA), the caching strategy can be optimized. In the proposed system, we consider the design of intelligent caching strategies when a number of UAVs are deployed to serve ground users, where each UAV has a limited storage capacity for caching useful user contents. We use LDA to extract the user request preferences in order to intelligently cache data in the UAVs, while we utilize k-means clustering to classify users and to help deploy UAVs. Besides, we consider three user-UAV association criteria, namely the user received signal to noise ratio (SNR), user preferences and the delay. Our simulation results show that, when compared to random caching, the average caching efficiency could be significantly improved from 50% to 70 %, while the latency of our proposed system can also be greatly reduced. NOTE: .eps files can be read by PhotoShop; .fig files are edited by Matlab R2021a in Windows system; .dat files in each Data folder are read by Matlab R2021a. Fig.~1: Cache_Enabled_UAV.png Fig.~2: LDA_Model.pdf Fig.~3: Max_SNR.eps Fig.~4: Data_Distribution.eps Fig.~5: Capacity_3.eps Fig.~6: Caching_Efficiency.eps Fig.~7: Requst_Delay.eps Fig.~8: Transmission_Delay.eps Fig.~9: Total_Delay.eps