TY - GEN
T1 - Joint Beamformer Design and User Scheduling in Integrated Terrestrial-Satellite Networks
AU - Dong, Hao
AU - Hua, Cunqing
AU - Tafazolli, Rahim
AU - Gu, Pengwenlong
AU - Liu, Lingya
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported by National Key Research and Development Program of China (2018YFB1700203, 2018YFC0309604), Natural Science Foundation of Shanghai (NO.19ZR1426400), Natural Science Foundation of China (No.61831007, No.61801295), and China Postdoctoral Science Foundation (No.2019M661507).
Publisher Copyright:
© 2021 IEEE.
PY - 2021/6
Y1 - 2021/6
N2 - In this paper, we investigate the downlink transmission in the integrated terrestrial satellite networks, whereby the same spectrum is shared between two systems, and thus interference to each other should be carefully mitigated. We address this challenging issue by unifying the terrestrial beamformer design and satellite user scheduling into the same optimization framework. This nontrivial problem is decomposed into two subproblems, one deals with the terrestrial beamformer design to control the interference from the terrestrial base stations to the satellite users, the other tries to optimize the scheduling of the satellite users following the framing structure the DVB-S2X standards for satellite communication systems. A deep clustering user scheduling scheme is developed to group suitable satellite users to the same frame using the channel state information as the input feature. Finally, a joint iterative algorithm is designed to maximize the sum rate of all users in the integrated systems. We conduct extensive simulation results to show the effectiveness of the proposed scheme.
AB - In this paper, we investigate the downlink transmission in the integrated terrestrial satellite networks, whereby the same spectrum is shared between two systems, and thus interference to each other should be carefully mitigated. We address this challenging issue by unifying the terrestrial beamformer design and satellite user scheduling into the same optimization framework. This nontrivial problem is decomposed into two subproblems, one deals with the terrestrial beamformer design to control the interference from the terrestrial base stations to the satellite users, the other tries to optimize the scheduling of the satellite users following the framing structure the DVB-S2X standards for satellite communication systems. A deep clustering user scheduling scheme is developed to group suitable satellite users to the same frame using the channel state information as the input feature. Finally, a joint iterative algorithm is designed to maximize the sum rate of all users in the integrated systems. We conduct extensive simulation results to show the effectiveness of the proposed scheme.
KW - beamforming
KW - deep clustering
KW - Terrestrial satellite networks
KW - user scheduling
UR - http://www.scopus.com/inward/record.url?scp=85115703210&partnerID=8YFLogxK
U2 - 10.1109/ICC42927.2021.9500540
DO - 10.1109/ICC42927.2021.9500540
M3 - Conference article published in proceeding or book
AN - SCOPUS:85115703210
T3 - IEEE International Conference on Communications
SP - 1
EP - 6
BT - ICC 2021 - IEEE International Conference on Communications, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Conference on Communications, ICC 2021
Y2 - 14 June 2021 through 23 June 2021
ER -