The aim of this article is to investigate the performance of near-field integrated sensing and communication (ISAC) systems using rotatable movable antennas (RMAs). In the proposed RMA-enabled system, the positions and rotations of antennas at the base station (BS) are dynamically adjusted to enhance both communication and sensing capabilities. Two designs are explored: i) a sensing-centric design that minimizes the Cram$\text{é}$r-Rao bound (CRB) with signal-to-interference-plus-noise ratio (SINR) constraints, and ii) a communication-centric design that maximizes the sum-rate with a CRB constraint. To solve the formulated optimization problems, two alternating optimization (AO)-based algorithms are proposed capitalizing on the semidefinite relaxation (SDR) method and the particle swarm optimization (PSO) method. Numerical results demonstrate that: i) the proposed RMA-enabled system outperforms the conventional fixed-position antenna and non-rotatable movable antenna systems in both sensing-centric and communication-centric designs and RMAs' rotations show a higher performance gain in communication-centric design; ii) the proposed optimization methods achieve the Pareto boundary in both sensing-centric and communication-centric designs.
Flexible Beamforming Design with Two-layer Rotatable Antenna: Synergizing Array and Antenna Rotations
The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳));Southern University of Science and Technology (SUSTech)(南方科技大学);University of Waterloo(滑铁卢大学);National University of Singapore(新加坡国立大学)
DRL-Based Secure Transmission for Rotatable Antenna-Enabled Low-Altitude ISAC Systems
Huazhong University of Science and Technology(华中科技大学);China Electric Power Research Institute(中国电力科学研究院);Hainan University(海南大学);Hunan University(湖南大学);Jishou University(吉首大学);Nanjing University of Science and Technology(南京理工大学)
Rotatable Antenna-Enhanced Secure Integrated Sensing and Communications Under Imperfect CSI
Beihang University(北京航空航天大学);State Key Laboratory of CNS/ATM(空管通信导航国家重点实验室);Queen’s University Belfast(贝尔法斯特女王大学);State Key Laboratory of Environment Characteristics and Effects for Near-Space(临近空间环境特性与效应国家重点实验室);Beijing Institute of Technology(北京理工大学)
Polarization-Aware Rotatable Antennas for RIS-Empowered Symbiotic Radios
National Key Laboratory of Wireless Communications, University of Electronic Science and Technology of China(电子科技大学无线通信重点实验室);School of Electrical and Electronic Engineering, Nanyang Technological University(南洋理工大学电气与电子工程学院);Institute for Fundamental and Frontier Sciences, University of Electronic Science and Technology of China(电子科技大学前沿交叉科学研究院)
User Association and Transmit Beamforming for Rotatable Antenna-Enabled LAE Networks
National Key Laboratory of Wireless Communications, University of Electronic Science and Technology of China(电子科技大学无线通信国家重点实验室);Institute for Fundamental and Frontier Sciences, University of Electronic Science and Technology of China(电子科技大学前沿交叉学院)
School of Integrated Circuits, Shanghai Jiao Tong University(上海交通大学集成电路学院);Innovation Academy for Microsatellites of Chinese Academy of Science(中国科学院微小卫星创新研究院);Shanghai Institute of Satellite Engineering(上海卫星工程研究所)
Hybrid Beamforming for Subarray-Level Movable Antenna Enhanced MU-MIMO Communications
Zhejiang Gongshang University(浙江工商大学);University of Electronic Science and Technology of China(电子科技大学);National Key Laboratory of Wireless Communications(无线通信全国重点实验室);University of California, San Diego(加州大学圣地亚哥分校);Sichuan Normal University(四川师范大学)
Artificial Intelligence for Spatially Reconfigurable Antennas: Movable, Fluid, and Pinching Antenna Systems
Phenikaa University(菲尼亚卡大学);University of Essex(埃塞克斯大学);VSB-Technical University of Ostrava(俄斯特拉发科技大学);Harbin Institute of Technology, Shenzhen(哈尔滨工业大学(深圳));Zhejiang Gongshang University(浙江工商大学)
Self-Calibration DOA Estimation for Movable Antenna Systems with Antenna Position Errors
Nanjing University of Science and Technology(南京理工大学);Qian Xuesen College, Nanjing University of Science and Technology(南京理工大学钱学森学院);Seoul National University(首尔大学)
Joint Shape-Position Optimization Enhanced 2D DOA Estimation in Movable Antenna Systems
Key Laboratory of Near-Range RF Sensing ICs and Microsystems (NJUST), Ministry of Education, School of Electronic and Optical Engineering, Nanjing University of Science and Technology(南京理工大学电子与光学工程学院近程射频感知集成电路与微系统教育部重点实验室);Qian Xuesen College, Nanjing University of Science and Technology(南京理工大学钱学森学院)