This paper investigates the beamforming optimization problem for multibeam satellite communication systems. We focus on the minimization of transmit power on the satellite downlink system subject to the quality of service (QoS) of the satellite user and the interference signal of the terrestrial user. Due to the non-convexity of the original optimization problem induced by the user's channel state information (CSI) uncertainty, we consider a robust beamforming scheme for converting the original optimization problem into a tractable convex optimization problem with some approximation techniques. Numerical results demonstrate that the proposed method reasonably guarantees transmission power in the presence of channel uncertainty.
|Title of host publication||ITC-CSCC 2022 - 37th International Technical Conference on Circuits/Systems, Computers and Communications|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||4|
|Publication status||Published - 2022|
|Event||37th International Technical Conference on Circuits/Systems, Computers and Communications, ITC-CSCC 2022 - Phuket, Thailand|
Duration: 2022 Jul 5 → 2022 Jul 8
|Name||ITC-CSCC 2022 - 37th International Technical Conference on Circuits/Systems, Computers and Communications|
|Conference||37th International Technical Conference on Circuits/Systems, Computers and Communications, ITC-CSCC 2022|
|Period||22/7/5 → 22/7/8|
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIT) (NRF-2022R1A2C1011443).
© 2022 IEEE.
All Science Journal Classification (ASJC) codes
- Information Systems
- Electrical and Electronic Engineering
- Artificial Intelligence
- Computer Networks and Communications
- Computer Science Applications
- Hardware and Architecture