Abstract
This letter studies an aerial reconfigurable intelligent surface (ARIS)-aided multiple-input multiple-output (MIMO) ground communication system, where downlink transmission from a multi-antenna base station (BS) to a set of terrestrial single-antenna users is investigated. We target at optimizing the sum-rate of all users by jointly considering the active beamforming at BS, the passive beamforming at ARIS, and the ARIS deployment. A three-stage alternative algorithm, called JAPBD, is proposed to effectively solve the formulated problem, where the active and passive beamforming are designed by means of the block coordinate descent (BCD) method, while the ARIS deployment is optimized through successive convex approximation (SCA). Numerical results demonstrate the rapid convergence and superiority of the proposed scheme compared with existing works.
| Original language | English |
|---|---|
| Pages (from-to) | 2003-2007 |
| Number of pages | 5 |
| Journal | IEEE Wireless Communications Letters |
| Volume | 12 |
| Issue number | 12 |
| DOIs | |
| State | Published - 2023.12.1 |
Keywords
- active and passive beamforming design
- Aerial reconfigurable intelligent surface
- deployment optimization
- successive convex approximation
Quacquarelli Symonds(QS) Subject Topics
- Computer Science & Information Systems
- Engineering - Electrical & Electronic
- Engineering - Petroleum
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