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A simultaneously transmitting and reflecting intelligent surface (STARS) enabled integrated sensing and communications (ISAC) framework is proposed, where the whole space is divided by STARS into a sensing space and a communication space. A…

Information Theory · Computer Science 2023-02-27 Zhaolin Wang , Xidong Mu , Yuanwei Liu

This letter presents a flexible rate-splitting multiple access (RSMA) framework for near-field (NF) integrated sensing and communications (ISAC). The spatial beams configured to meet the communication rate requirements of NF users are…

Information Theory · Computer Science 2024-12-03 Jiasi Zhou , Cong Zhou , Cheng Zeng , Chintha Tellambura

Reconfigurable distributed antennas and reflecting surface (RDARS) has emerged as a promising architecture for communication and sensing performance enhancement. In particular, the new selection gain can be achieved by leveraging the…

Signal Processing · Electrical Eng. & Systems 2026-03-13 Chengwang Ji , Haiquan Lu , Qiaoyan Peng , Jintao Wang , Shaodan Ma

This paper investigates the optimization of reconfigurable intelligent surface (RIS) in an integrated sensing and communication (ISAC) system. \red{To meet the demand of growing number of devices, power domain non-orthogonal multiple access…

Signal Processing · Electrical Eng. & Systems 2023-09-13 Wanting Lyu , Yue Xiu , Xinyang Li , Songjie Yang , Phee Lep Yeoh , Yonghui Li , Zhongpei Zhang

This paper investigates the tradeoff between sensing and communication in an ISAC system comprising multiple sensing targets and communication users. A dual-functional base station conducts downlink data transmission services based on RSMA…

Information Theory · Computer Science 2025-04-07 Xudong Li , Rugui Yao , Alexandros-Apostolos A. Boulogeorgos , Theodoros A. Tsiftsis

Reconfigurable antennas (RAs), capable of dynamically adapting their radiation patterns, polarization states, and operating frequencies, have emerged as a promising technology to meet the stringent performance requirements of…

Signal Processing · Electrical Eng. & Systems 2025-10-21 Mengzhen Liu , Ming Li , Rang Liu , Qian Liu , A. Lee Swindlehurst

A novel multiuser communication system with movable antennas (MAs) is proposed, where the antenna position optimization is exploited to enhance the downlink sum-rate. The joint optimization of the transmit beamforming vector and transmit MA…

Signal Processing · Electrical Eng. & Systems 2023-09-26 Zhenqiao Cheng , Nanxi Li , Jianchi Zhu , Chongjun Ouyang

Active reconfigurable intelligent surfaces (RISs) can improve the performance of integrated sensing and communication (ISAC), and therefore enable simultaneous data transmission and target sensing. However, when the line-of-sight (LoS) link…

Signal Processing · Electrical Eng. & Systems 2024-10-17 Ahmed Magbool , Vaibhav Kumar , Mark F. Flanagan

Movable antennas (MAs) are a promising paradigm to enhance the spatial degrees of freedom of conventional multi-antenna systems by flexibly adapting the positions of the antenna elements within a given transmit area. In this paper, we model…

Information Theory · Computer Science 2023-08-07 Yifei Wu , Dongfang Xu , Derrick Wing Kwan Ng , Wolfgang Gerstacker , Robert Schober

In this paper, we consider a reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output communication system with multiple antennas at both the base station (BS) and the user. We plan to maximize the achievable rate…

Information Theory · Computer Science 2024-05-28 Yaqiong Zhao , Jindan Xu , Wei Xu , Kezhi Wang , Xinquan Ye , Chau Yuen , Xiaohu You

Distributed Antenna Systems (DASs) employ multiple antenna arrays in remote radio units to achieve highly directional transmission and provide great coverage performance for future-generation networks. However, the utilization of active…

Information Theory · Computer Science 2023-09-26 Chengzhi Ma , Xi Yang , Jintao Wang , Guanghua Yang , Wei Zhang , Shaodan Ma

This paper investigates a movable antenna (MA) enabled integrated sensing and communication (ISAC) system under the influence of antenna crosstalk. First, it generalizes the antenna crosstalk model from the conventional fixed-position…

Signal Processing · Electrical Eng. & Systems 2025-09-04 Zeyuan Zhang , Yue Xiu , Zheng Dong , Jiacheng Yin , Maurice J. Khabbaz , Chadi Assi , Ning Wei

To address the complex beam control in traditional multiple-input multiple-output (MIMO) systems, researchers have proposed adaptive beam alignment using retro-directive antenna (RDA) arrays. This approach creates echo resonance between the…

Signal Processing · Electrical Eng. & Systems 2025-06-06 Yixuan Guo , Shuaifan Xia , Mingliang Xiong , Qingwen Liu , Wen Fang , Qingwei Jiang , Gang Yan , Jiangchuan Mu

Movable antenna (MA) has emerged as a promising technology to flexibly reconfigure wireless channels by adjusting antenna placement. In this paper, we study a dual-functional radar-communication (DFRC) system enhanced with movable antennas.…

Signal Processing · Electrical Eng. & Systems 2025-10-14 Ran Yang , Zheng Dong , Peng Cheng , Lin Zhang , Wanting Lyu , Yue Xiu , Ning Wei , Chadi Assi

Reconfigurable distributed antennas and reflecting surface (RDARS) has emerged as a transformative solution to address the stringent requirements of future wireless networks. By combining distributed active antennas with reconfigurable…

Information Theory · Computer Science 2026-04-23 Jintao Wang , Pingping Zhang , Chengzhi Ma , Chengwang Ji , Zheng Shi , Guanghua Yang , Shaodan Ma

The idea of Integrated Sensing and Communication (ISAC) offers a promising solution to the problem of spectrum congestion in future wireless networks. This paper studies the integration of intelligent reflective surfaces (IRS) with ISAC…

Signal Processing · Electrical Eng. & Systems 2023-09-06 Mahmoud AlaaEldin , Emad Alsusa , Karim G. Seddik , Christos Masouros , Iman Valiulahi

The technology of Reconfigurable Intelligent Surfaces (RISs) has lately attracted considerable interest from both academia and industry as a low-cost solution for coverage extension and signal propagation control. In this paper, we study…

Information Theory · Computer Science 2022-08-03 Konstantinos D. Katsanos , Paolo Di Lorenzo , George C. Alexandropoulos

Most works evaluating the performance of Multi-User Multiple-Input Multiple-Output (MU-MIMO) systems consider Access Points (APs) with fixed antennas, that is, without any movement capability. Recently, the idea of APs with antenna arrays…

Signal Processing · Electrical Eng. & Systems 2024-11-04 Eduardo Noboro Tominaga , Onel Luis Alcaraz López , Tommy Svensson , Richard Demo Souza , Hirley Alves

Reconfigurable intelligent surface (RIS) has emerged as a cost-effective solution for green communications in 6G. However, its further extensive use has been greatly limited due to its fully passive characteristics. Considering the…

Information Theory · Computer Science 2025-01-15 Jintao Wang , Chengzhi Ma , Shiqi Gong , Xi Yang , Shaodan Ma

A novel integrated sensing and communication (ISAC) system is proposed, where a dual-functional base station is utilized to transmit the superimposed non-orthogonal multiple access (NOMA) communication signal for serving communication users…

Information Theory · Computer Science 2022-10-07 Jiakuo Zuo , Yuanwei Liu , Chenming Zhu , Yixuan Zou , Dengyin Zhang , Naofal Al-Dhahir
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