TY - GEN
T1 - Dynamic Beam Assignment-based Secure Beamforming Scheme in Large-scale Multi-beam LEO Satellite Constellation
AU - Jiao, Xiaofen
AU - Wang, Yichen
AU - Liu, Haotian
AU - Wang, Tao
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Security is a critical issue for multi-beam low earth orbit satellite constellations (MLLSCs). To secure the downlink transmission while considering the varying beam resources and limited on-board resource of the system, we propose a dynamic beam assignment-based secure beamforming scheme for the MLLSC. Specifically, we formulate an optimization problem to minimize the total transmit power of the satellite constellation while satisfying the secrecy rate constraints and signal-to-interference-plus-noise-ratio (SINR) constraints of the users. Since the formulated problem is a complex nonconvex mixed-integer optimization problem, it is split into the solvable beam-forming coefficients optimization problem and beam assignment problem. Consequently, we propose a search algorithm based on genetic algorithm to jointly determine the optimal beam assignment vectors and beamforming vectors. Simulation results demonstrate the superiority of our proposed scheme.
AB - Security is a critical issue for multi-beam low earth orbit satellite constellations (MLLSCs). To secure the downlink transmission while considering the varying beam resources and limited on-board resource of the system, we propose a dynamic beam assignment-based secure beamforming scheme for the MLLSC. Specifically, we formulate an optimization problem to minimize the total transmit power of the satellite constellation while satisfying the secrecy rate constraints and signal-to-interference-plus-noise-ratio (SINR) constraints of the users. Since the formulated problem is a complex nonconvex mixed-integer optimization problem, it is split into the solvable beam-forming coefficients optimization problem and beam assignment problem. Consequently, we propose a search algorithm based on genetic algorithm to jointly determine the optimal beam assignment vectors and beamforming vectors. Simulation results demonstrate the superiority of our proposed scheme.
KW - beam assignment scheme
KW - multi-beam low earth orbit satellite constellation
KW - physical layer security
UR - https://www.scopus.com/pages/publications/85149133466
U2 - 10.1109/WCSP55476.2022.10039353
DO - 10.1109/WCSP55476.2022.10039353
M3 - 会议稿件
AN - SCOPUS:85149133466
T3 - 2022 IEEE 14th International Conference on Wireless Communications and Signal Processing, WCSP 2022
SP - 842
EP - 847
BT - 2022 IEEE 14th International Conference on Wireless Communications and Signal Processing, WCSP 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th IEEE International Conference on Wireless Communications and Signal Processing, WCSP 2022
Y2 - 1 November 2022 through 3 November 2022
ER -