[1] Hakami, S. A. Mostafavi, Z. Arefinezhad,"RL-based Resource Allocation for Improving Throughput in Cellular D2D Communications",Tabriz journal od electerical engineering,vol.50,no.3, pp. 1165-1177,2020.
[2]
Deypir,
F. Gouya,"Exploiting Multi-Node Device-to-Device Communications for Wireless Video Delivery over Cellular Networks",vol.50,no.4, pp. 1581-1591,2021.
[3] Yahia, Z.Garroussi, B.Sansò, JF.Frigon, S.Martel, "Lesage-Landry A, Kurt GK. A scalable architecture for future regenerative satellite payloads", arXiv preprint arXiv:2407.06075, pp.1-5, 2024.
[4] Satellite direct-to-device technology needs to evolve through four phases before reaching its full potential.[Online]. Available at: https://www.analysysmason.com/research/content/articles/satellite-d2d-phases-nsi039/
[6] Satellite Direct-to-Device Connectivity Bringing Connectivity to Everyone, Everywhere, Anytime, Global satellite operator association.[Online].Available at: https://gsoasatellite.com/wp-content/uploads/GSOA-D2D-Paper.pdf
[7] Tuzi, EF.Aguilar, T.Delamotte, G.Karabulut-Kurt, A.Knopp," Distributed Approach to Satellite Direct-to-Cell Connectivity in 6G Non-Terrestrial Networks", IEEE Wireless Communications,vol.30,no.6,pp.28-34, 2023.
[9] He, Y.Xiao, S.Zhang, M.Jia, Z.Li, "Direct-to-Smartphone for 6G NTN: Technical Routes, Challenges, and Key Technologies", IEEE Network,pp.128-135,2024.
[10] L. Jones and A. L. Allison, "The Great Convergence and the Future of Satellite-Enabled Direct-to-Device,".[Online]. Available at: https://csps.aerospace.org/sites/default/files/2023-09/Jones Allison_GreatConvergence_20230919.pdf
[11] Future Capability Paper Non-Terrestrial Networks. Available online at: https://uktin.net/whats-happening/resources/future-capability-paper-non-terrestrial-networks.
[12] Euler and et.al.," Using 3GPP technology for satellite communication",
Ericsson Technology Review,vol.2023,no.6,pp.1-11,2023.
[14] Xu, Y. Gao, G. Chen, R. Fernandez, V. Basavarajappa and R. Tafazolli, "Enhancement of Satellite-To-Phone Link Budget: An Approach Using Distributed Beamforming," IEEE Vehicular Technology Magazine, vol.18, no. 4, pp. 85-93, 2023.
[15] Toka and et al., "RIS-Empowered LEO Satellite Networks for 6G: Promising Usage Scenarios and Future Directions," IEEE Communications Magazine, vol.62, no.11,pp.128-135,2024.
[16] Boumard, I. Moilanen, M. Lasanen, T. Suihko and M. Hoyhtya, "A Technical Comparison of Six Satellite Systems: Suitability for Direct-to-Device Satellite Access," 9th World Forum on Internet of Things (WF-IoT),pp.1-6, 2023.
[17] Before the Federal Communications Commission Washington, D.C. 20554.Available online at: https://docs.fcc.gov/public/attachments/DA-24-222A1_Rcd.pdf
[18] Aguilar, P.Butler, J.Collins, M.Guerster, B.Kristinsson, P.McKeen, K.Cahoy, EF.Crawley, "Tradespace exploration of the next generation communication satellites", AIAA Scitech Forum 2019,pp.1-31,2019.
[19] Pachler, I.del Portillo, EF.Crawley, BG.Cameron. An updated comparison of four low earth orbit satellite constellation systems to provide global broadband. IEEE international conference on communications workshops (ICC workshops), pp. 1-7,2021.
[20] Luglio, C.Roseti, F.Zampognaro," QoS mechanisms for satellite communications", IEEE First AESS European Conference on Satellite Telecommunications (ESTEL), pp. 1-5, 2012.
[21] SpaceX Starlink Has 227 Direct to Cellphone Capable Satellites. Available online at: https://www.nextbigfuture.com/2024/10/spacex-starlink-has-227-direct-to-cellphone-capable-satellites.html
[22] The satellite to phone market. Available online at: https://www.satellitemarkets.com/satellite-phone-market.
[23] SpaceX Launch Completes the First Shell of Starlink Direct to Cell Satellites.[Online].Available at: https://www.satellitetoday.com/connectivity/2024/12/06/spacex-launch-completes-the-first-shell-of-starlink-direct-to-cell-satellites/
[24] Analyze NTN Coverage and Capacity for LEO Mega-Constellation. Available online at: https://www.mathworks.com/help/satcom/ug/analyze-ntn-coverage-and-capacity-for-leo-mega-constellation.html
[25] Pastukh, V. Tikhvinskiy, S. Dymkova, and O. Varlamov, "Challenges of Using the L-Band and S-Band for Direct-to-Cellular Satellite 5G-6G NTN Systems,"Technologies, vol. 11, no. 4, pp.1-18, 2023.
[26] I.Del Portillo, BG.Cameron, EF. A technical comparison of three low earth orbit satellite constellation systems to provide global broadband. Acta astronautica,vol.159,pp.123-35,2019.
[27] Sah, R.Srivastava, K.Das. “Constellation design of remote sensing small satellite for infrastructure monitoring in india”, arXiv preprint arXiv ,pp.1-10, 2021.