1. Burleigh, S. C., Cola, T., Morosi, S., Jayousi, S., Cianca, E., & Fuchs, C. (2019). ‘From Connectivity to Advanced Internet Services: A Comprehensive Review of Small Satellites Communications and Networks’, Wireless Communications and Mobile Computing, Volume. Article ID, 6243505, 1–17.
2. B.Soret, I.Mayorga, M.Roper, D.Wubben, B.Matthiesen, A. Dekorsy and P.Popovski, ‘LEO Small-Satellite Constellations for 5G and Beyond-5G Communications’, arXiv, [Online] https://arxiv.org/pdf/1912.08110.pdf
3. Akyildiz, I. F., Jornet, J. M., & Nie, S. (2019). A new CubeSat design with reconfigurable multi-band radios for dynamic spectrum satellite communication networks. Ad Hoc Networks, 86, 166–178.
4. Guan, M., Wu, Z., Cui, Y., Cao, X., Wang, L., Ye, J., & Peng, B. (2019). An Intelligent Wireless Channel Allocation in HAPS 5G Communication System based on reinforcement learning. EURASIP Journal on Wireless Communications and Networking, 2019(138), 1–9.
5. International Telecommunications Union, ‘HAPS–High Altitude Platform Systems’, [Online] Available at: https://www.itu.int/en/mediacentre/backgrounders/pages/High-altitude-platform-systems.aspx