Movable Antenna Aided Full-Duplex ISAC System with Self-Interference Mitigation
2025/05/20 by Size Peng, Yin Xu, Peng, Size +9
Engineering · #Antenna Design and Optimization #FOS: Computer and information sciences #FOS: Electrical engineering #Full-Duplex Wireless Communications #Information Theory (cs.IT) #Radar Systems and Signal Processing #Signal Processing (eess.SP) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2505.14830
openalex publication_date 2025/05/20 · openalex created_date 2025/10/19 · openalex updated_date 2026/07/28
Abstract
Movable antenna (MA) has shown significant potential for improving the performance of integrated sensing and communication (ISAC) systems. In this paper, we model an MA-aided ISAC system operating in a communication full-duplex mono-static sensing framework. The self-interference channel is modeled as a function of the antenna position vectors under the near-field channel condition. We develop an optimization problem to maximize the weighted sum of downlink and uplink communication rates alongside the mutual information relevant to the sensing task. To address this highly non-convex problem, we employ the fractional programming (FP) method and propose an alternating optimization (AO)-based algorithm that jointly optimizes the beamforming, user power allocation, and antenna positions at the transceivers. Given the sensitivity of the AO-based algorithm to the initial antenna positions, a PSO-based algorithm is proposed to explore superior sub-optimal antenna positions within the feasible region. Numerical results indicate that the proposed algorithms enable the MA system to effectively leverage the antenna position flexibility for accurate beamforming in a complex ISAC scenario. This enhances the system's self-interference cancellation (SIC) capabilities and markedly improves its overall performance and reliability compared to conventional fixed-position antenna designs.
Citations
- A Tutorial on Movable Antennas for Wireless Networks
- Sum Rate Maximization for Movable Antenna-Aided Downlink RSMA Systems
- Movable-Antenna Aided Secure Transmission for RIS-ISAC Systems
- Flexible Beamforming for Movable Antenna-Enabled Integrated Sensing and Communication
- Secure Wireless Communication via Movable-Antenna Array
- Multiuser Communications with Movable-Antenna Base Station: Joint Antenna Positioning, Receive Combining, and Power Control
- Communication-Sensing Region for Cell-Free Massive MIMO ISAC Systems
- Movable Antennas for Wireless Communication: Opportunities and Challenges
- Movable Antennas for Wireless Communication: Opportunities and Challenges
- On the Road to 6G: Visions, Requirements, Key Technologies and Testbeds
- On the Road to 6G: Visions, Requirements, Key Technologies, and Testbeds
- Movable-Antenna Enhanced Multiuser Communication via Antenna Position Optimization
- Full-Duplex Communication for ISAC: Joint Beamforming and Power Optimization
- Modeling and Performance Analysis for Movable Antenna Enabled Wireless Communications
- MIMO Capacity Characterization for Movable Antenna Systems
- Secure Intelligent Reflecting Surface Aided Integrated Sensing and Communication
- Integrated Sensing and Communications: Towards Dual-functional Wireless Networks for 6G and Beyond
- Integrated Sensing and Communications: Toward Dual-Functional Wireless Networks for 6G and Beyond
- A Survey on Fundamental Limits of Integrated Sensing and Communication
- Fluid Antenna Systems
- Intelligent Reflecting Surface Aided MIMO Broadcasting for Simultaneous Wireless Information and Power Transfer
- Joint Radar and Communication Design: Applications, State-of-the-art, and the Road Ahead
- Joint Radar and Communication Design: Applications, State-of-the-Art, and the Road Ahead
- Fractional Programming for Communication Systems--Part I: Power Control and Beamforming
- Joint Antenna Position and Beamforming Optimization with Self-Interference Mitigation in MA-ISAC System
Related