K. Ntontin, E. Lagunas, J. Querol, J. u. Rehman et al., "A vision, survey, and roadmap toward space communications in the 6G and beyond era," Proc. IEEE, pp. 1-37, 2025.
M. A. Vázquez, M. R. B. Shankar, C. I. Kourogiorgas, P.-D. Arapoglou et al., "Precoding, scheduling, and link adaptation in mobile interactive multibeam satellite systems," IEEE J. Sel. Areas Commun., vol. 36, no. 5, pp. 971-980, 2018.
X. Zhang, J. Wang, C. Jiang, C. Yan et al., "Robust beamforming for multibeam satellite communication in the face of phase perturbations," IEEE Trans. Veh. Technol., vol. 68, no. 3, pp. 3043-3047, 2019.
W. Wang, L. Gao, R. Ding, J. Lei et al., "Resource efficiency optimization for robust beamforming in multi-beam satellite communications," IEEE Trans. Veh. Technol., vol. 70, no. 7, pp. 6958-6968, 2021.
L. You, K.-X. Li, J. Wang, X. Gao et al., "Massive MIMO transmission for LEO satellite communications," IEEE J. Sel. Areas Commun., vol. 38, no. 8, pp. 1851-1865, 2020.
S. Wu, Y. Wang, G. Sun, L. You et al., "Energy and computational efficient precoding for LEO satellite communications," in Proc. IEEE Glob. Commun. Conf. (GLOBECOM), Dec. 2023, pp. 1872-1877.
M. Y. Abdelsadek, G. K. Kurt, and H. Yanikomeroglu, "Distributed massive MIMO for LEO satellite networks," IEEE Open J. Commun. Soc., vol. 3, pp. 2162-2177, Nov. 2022.
M. Röper, B. Matthiesen, D. Wübben, P. Popovski et al., "Beamspace MIMO for satellite swarms," in Proc. IEEE Wireless Commun. Netw. Conf. (WCNC), Apr. 2022, pp. 1307-1312.
M. Y. Abdelsadek, G. Karabulut-Kurt, H. Yanikomeroglu, P. Hu et al., "Broadband connectivity for handheld devices via LEO satellites: Is distributed massive MIMO the answer?" IEEE Open J. Commun. Soc., vol. 4, pp. 713-726, Mar. 2023.
X. Zhang, S. Sun, M. Tao, Q. Huang et al., "Multi-satellite cooperative networks: Joint hybrid beamforming and user scheduling design," IEEE Trans. Wireless Commun., pp. 7938-7952, Jul. 2024.
Z. Xu, Y. Gao, G. Chen, R. Fernandez et al., "Enhancement of satelliteto-phone link budget: An approach using distributed beamforming," IEEE Veh. Technol. Mag., vol. 18, no. 4, pp. 85-93, Oct. 2023.
Z. Xiang, X. Gao, K.-X. Li, and X.-G. Xia, "Massive MIMO downlink transmission for multiple LEO satellite communication," IEEE Trans. Commun., vol. 72, no. 6, pp. 3352-3364, Jun. 2024.
V. N. Ha, D. H. N. Nguyen, J. C.-M. Duncan, J. L. Gonzalez-Rios et al., "User-centric beam selection and precoding design for coordinated multiple-satellite systems," in Proc. IEEE 35th Int. Symp. Personal, Indoor and Mobile Radio Commun. (PIMRC), Sept. 2024, pp. 1-6.
X. Chen and Z. Luo, "Asynchronous interference mitigation for LEO multi-satellite cooperative systems," IEEE Trans. Wireless Commun., vol. 23, no. 10, pp. 14 956-14 971, Oct. 2024.
X. Chen and Z. Luo, "Cooperative WMMSE precoding for asynchronous LEO multisatellite communications," in Proc. IEEE Int. Conf. Commun. Workshops (ICC Workshops), Jun. 2024, pp. 1691-1696.
3GPP, "TR 38.821 v16.2.0: Solutions for NR to support non-terrestrial networks (NTN)," 3GPP, Tech. Rep. TR 38.821 V16.2.0, Mar. 2023.
3GPP,, "TR 38.811 v15.4.0: Study on new radio (NR) to support nonterrestrial networks," 3GPP, Tech. Rep. TR 38.811 V15.4.0, Sep. 2020.
L. Bai, C.-X. Wang, G. Goussetis, S. Wu et al., "Channel modeling for satellite communication channels at Q-band in high latitude," IEEE Access, vol. 7, pp. 137 691-137 703, 2019.
S. Wu, G. Sun, Y. Wang, L. You et al., "Low-complexity user scheduling for LEO satellite communications," IET Commun., vol. 17, no. 12, pp. 1368-1383, May 2023.
Y. Wang, H. Hou, X. Yi, W. Wang et al., "Towards unified AI models for MU-MIMO communications: A tensor equivariance framework," IEEE Trans. Wireless Commun., Jun. 2025, Early Access.
W. Wang, Y. Tong, L. Li, A.-A. Lu et al., "Near optimal timing and frequency offset estimation for 5G integrated LEO satellite communication system," IEEE Access, vol. 7, pp. 113 298-113 310, 2019.
M. Yuan, H. Wang, H. Yin, and D. He, "Alternating optimization based hybrid transceiver designs for wideband millimeter-wave massive multiuser MIMO-OFDM systems," IEEE Trans. Wireless Commun., vol. 22, no. 12, pp. 9201-9217, Dec. 2023.
E. Björnson, M. Bengtsson, and B. Ottersten, "Optimal multiuser transmit beamforming: A difficult problem with a simple solution structure [lecture notes]," IEEE Signal Process. Mag., vol. 31, no. 4, pp. 142-148, Jul. 2014.
M. Bengtsson and B. Ottersten, "Optimal downlink beamforming using semidefinite optimization," in Proc. 37th Annual Allerton Conference on Communication, Control, and Computing, Sep. 1999, pp. 987-996, invited paper.
M. Bengtsson and B. Ottersten, "Optimal and suboptimal transmit beamforming," in Handbook of Antennas in Wireless Communications, L. C. Godara, Ed. CRC Press, Aug. 2001.
S. S. Christensen, R. Agarwal, E. De Carvalho, and J. M. Cioffi, "Weighted sum-rate maximization using weighted MMSE for MIMO-BC beamforming design," IEEE Trans. Wireless Commun., vol. 7, no. 12, pp. 4792-4799, Dec. 2008.
Q. Shi, M. Razaviyayn, Z.-Q. Luo, and C. He, "An iteratively weighted MMSE approach to distributed sum-utility maximization for a MIMO interfering broadcast channel," IEEE Trans. Signal Process., vol. 59, no. 9, pp. 4331-4340, Sept. 2011.
M. Joham, K. Kusume, M. H. Gzara, W. Utschick et al., "Transmit wiener filter for the downlink of TDDDS-CDMA systems," in Proc. IEEE 7th Int. Symp. Spread Spectrum Techniques and Applications, vol. 1, 2002, pp. 9-13.
S. Jaeckel, L. Raschkowski, and L. Thieley, "A 5G-NR satellite extension for the QuaDRiGa channel model," in Proc. Joint Eur. Conf. Netw. Commun. & 6G Summit (EuCNC/6G Summit), 2022, pp. 142-147.
"Federal communications commission; amendment to pending application for the SpaceX Gen2 NGSO satellite system," FCC, Washington, D.C., Tech. Rep. File No. SAT-AMD-2021, August 2021, available: Https://fcc.report/IBFS/SAT-AMD-20210818-00105/12943361.pdf.