Modeling and Performance Analysis for Movable Antenna Enabled Wireless Communications
Lipeng Zhu, Wenyan Ma, and Rui Zhang

TL;DR
This paper introduces a movable antenna architecture that enhances wireless communication performance by exploiting flexible positioning to achieve higher spatial diversity, supported by a comprehensive channel model and analytical performance bounds.
Contribution
It develops a novel field-response model for movable antennas and analyzes their maximum channel gain in deterministic and stochastic channels, demonstrating potential performance improvements.
Findings
Movable antennas can outperform fixed antennas in channel gain.
Performance gains increase with the number of channel paths.
Analytical bounds and CDFs for maximum channel gain are derived.
Abstract
In this paper, we propose a novel antenna architecture called movable antenna (MA) to improve the performance of wireless communication systems. Different from conventional fixed-position antennas (FPAs) that undergo random wireless channel variation, the MAs with the capability of flexible movement can be deployed at positions with more favorable channel conditions to achieve higher spatial diversity gains. To characterize the general multi-path channel in a given region or field where the MAs are deployed, a field-response model is developed by leveraging the amplitude, phase, and angle of arrival/angle of departure (AoA/AoD) information on each of the multiple channel paths under the far-field condition. Based on this model, we then analyze the maximum channel gain achieved by a single receive MA as compared to its FPA counterpart in both deterministic and stochastic channels. First,…
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Taxonomy
TopicsAntenna Design and Analysis · Advanced MIMO Systems Optimization · Energy Harvesting in Wireless Networks
