Reconfigurable intelligent surface (RIS) is known as a promising technology
to improve the performance of wireless communication networks, which has been
extensively studied. Movable antenna (MA) is a novel technology that fully
exploits the antenna position for enhancing the channel capacity. In this
paper, we propose a new RIS-aided multiuser communication system with MAs. The
sum-rate is maximized by jointly optimizing the beamforming, the reflection
coefficient (RC) values of RIS and the positions of MAs. A fractional
programming-based iterative algorithm is proposed to solve the formulated
non-convex problem, considering three assumptions for the RIS. Numerical
results are presented to verify the effectiveness of the proposed algorithm and
the superiority of the proposed MA-based system in terms of sum-rate.Comment: 5 page