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Energy Efficiency Maximization for Movable Antenna-Enhanced System Based on Statistical CSI

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arxiv 2501.10694 v1 pith:HHKCBVFR submitted 2025-01-18 cs.IT eess.SPmath.IT

Xintai Chen , Biqian Feng , Yongpeng Wu , Wenjun Zhang This is my paper · ORCID
classification cs.ITeess.SPmath.IT
keywords systemtransmitvariablesreceiveantennacovarianceefficiencyenergy
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This paper investigates an innovative movable antenna (MA)-enhanced multiple-input multiple-output (MIMO) system designed to enhance communication performance. We aim to maximize the energy efficiency (EE) under statistical channel state information (S-CSI) through a joint optimization of the transmit covariance matrix and the antenna position vectors (APVs). To solve the stochastic problem, we consider the large number of antennas scenario and resort to deterministic equivalent (DE) technology to reformulate the system EE w.r.t. the transmit variables, i.e., the transmit covariance matrix and APV, and the receive variables, i.e., the receive APV, respectively. Then, we propose an alternative optimization (AO) algorithm to update the transmit variables and the receive variables to maximize the system EE, respectively. Our numerical results reveal that, the proposed MA-enhanced system can significantly improve EE compared to several benchmark schemes and the optimal performance can be achieved with a finite size of movement regions for MAs.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Energy Efficiency Maximization for Movable Antenna Communication Systems

    cs.IT 2025-06 conditional novelty 5.0 of 10

    A max-min energy-efficiency algorithm for movable-antenna uplink systems that accounts for the delay and energy of antenna movement.

  2. A Derivative-Free Position Optimization Approach for Movable Antenna Multi-User Communication Systems

    eess.SP 2025-05 conditional novelty 5.0 of 10

    A derivative-free, zeroth-order optimization method positions multiple movable antennas in a multi-user MISO system using only received pilot measurements, outperforming CSI-estimation-based positioning in simulation ...

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