Near-Field Communication with Movable Antennas: Electrostatic Equilibrium

This paper addresses the challenge of antenna placement in near-field massive MIMO systems to improve spectral efficiency. It proposes a novel approach based on electrostatic equilibrium, offering a computationally efficient solution for optimal antenna positioning. The work's significance lies in its innovative reformulation of the antenna placement problem and the development of an ODE-based framework for efficient optimization. The asymptotic analysis and closed-form solution further enhance the practicality and applicability of the proposed scheme.

• •Proposes a novel antenna placement approach for near-field massive MIMO systems.
• •Reformulates the antenna placement problem as a weighted Fekete problem.
• •Utilizes an electrostatic equilibrium perspective to derive optimal antenna positions.
• •Develops an ODE-based framework for efficient optimization.
• •Provides an asymptotic closed-form solution for large antenna sizes.
• •Demonstrates improved spectral efficiency and robustness through simulations.