Polarization Aware Movable Antenna

TL;DR

This paper introduces a polarization-aware movable antenna framework that leverages polarization optimization to improve wireless communication performance, especially in high-frequency and line-of-sight scenarios.

Contribution

It presents a new polarization-aware channel model and demonstrates how polarization optimization extends the effectiveness of movable antennas beyond traditional multipath environments.

Findings

Enhanced link reliability and data throughput

Effective in mmWave and LOS scenarios

Significant efficiency improvements

Abstract

This paper presents a polarization-aware movable antenna (PAMA) framework that integrates polarization effects into the design and optimization of movable antennas (MAs). While MAs have proven effective at boosting wireless communication performance, existing studies primarily focus on phase variations caused by different propagation paths and leverage antenna movements to maximize channel gains. This narrow focus limits the full potential of MAs. In this work, we introduce a polarization-aware channel model rooted in electromagnetic theory, unveiling a defining advantage of MAs over other wireless technologies such as precoding: the ability to optimize polarization matching. This new understanding enables PAMA to extend the applicability of MAs beyond radio-frequency, multipath-rich scenarios to higher-frequency bands, such as mmWave, even with a single line-of-sight (LOS) path. Our findings demonstrate that incorporating polarization considerations into MAs significantly enhances efficiency, link reliability, and data throughput, paving the way for more robust and efficient future wireless networks.