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In this paper, we explore cooperative sensing and communication within cell-free integrated sensing and communication (ISAC) systems. Specifically, multiple transmit access points (APs) collaboratively serve multiple communication users…

Signal Processing · Electrical Eng. & Systems 2025-02-17 Rang Liu , Ming Li , Qian Liu

This paper studies a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system, in which a multi-antenna base station (BS) sends unified wireless signals to estimate an extended target and communicate with a…

Information Theory · Computer Science 2022-08-19 Haocheng Hua , Xianxin Song , Yuan Fang , Tony Xiao Han , Jie Xu

Sensor-aided beamforming reduces the overheads associated with beam training in millimeter-wave (mmWave) multi-input-multi-output (MIMO) communication systems. Most prior work, though, neglects the challenges associated with establishing…

Signal Processing · Electrical Eng. & Systems 2025-09-17 Kartik Patel , Robert W. Heath

Integrated sensing and communication (ISAC) is widely recognized as a fundamental enabler for future wireless communications. In this paper, we present a joint communication and radar beamforming framework for maximizing a sum spectral…

Signal Processing · Electrical Eng. & Systems 2024-09-04 Jinseok Choi , Jeonghun Park , Namyoon Lee , Ahmed Alkhateeb

Harvesting data from distributed Internet of Things (IoT) devices with multiple autonomous unmanned aerial vehicles (UAVs) is a challenging problem requiring flexible path planning methods. We propose a multi-agent reinforcement learning…

Multiagent Systems · Computer Science 2021-06-04 Harald Bayerlein , Mirco Theile , Marco Caccamo , David Gesbert

Intelligent reflecting surface (IRS) has been considered as a revolutionary technology to enhance the wireless communication performance. To cater for multiple mobile users, adjusting IRS beamforming patterns over time, i.e., dynamic IRS…

Information Theory · Computer Science 2025-01-14 Guangji Chen , Qingqing Wu , Celimuge Wu , Mengnan Jian , Yijian Chen , Wen Chen

Integrated sensing and communication (ISAC) has been envisioned to play a more important role in future wireless networks. However, the design of ISAC networks is challenging, especially when there are multiple communication and sensing…

Information Theory · Computer Science 2025-06-09 Haoyun Li , Ming Xiao , Kezhi Wang , Robert Schober , Dong In Kim , Yong Liang Guan

The design of beamforming for downlink multi-user massive multi-input multi-output (MIMO) relies on accurate downlink channel state information (CSI) at the transmitter (CSIT). In fact, it is difficult for the base station (BS) to obtain…

Signal Processing · Electrical Eng. & Systems 2023-07-20 Zhenyuan Feng , Bruno Clerckx

Integrated Sensing and Communication (ISAC) is emerging as a key enabler for 6G wireless networks, allowing the joint use of spectrum and infrastructure for both communication and sensing. While prior ISAC solutions have addressed resource…

Signal Processing · Electrical Eng. & Systems 2025-12-03 Mehdi Zafari , Rang Liu , A. Lee Swindlehurst

Semantic communication has emerged as a new paradigm to facilitate the performance of integrated sensing and communication systems in 6G. However, most of the existing works mainly focus on sensing data compression to reduce the subsequent…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Haotian Wang , Dan Wang , Xiaodong Xu , Chuan Huang , Hao Chen , Nan Ma

Multiagent reinforcement learning (MARL) has attracted considerable attention due to its potential in addressing complex cooperative tasks. However, existing MARL approaches often rely on frequent exchanges of action or state information…

Machine Learning · Computer Science 2026-01-14 Zhenglong Luo , Zhiyong Chen , Aoxiang Liu , Ke Pan

Integrated positioning and communication (IPAC) system and reconfigurable intelligent surface (RIS) are both considered to be key technologies for future wireless networks. Therefore, in this paper, we propose a RIS-enabled IPAC scheme with…

Signal Processing · Electrical Eng. & Systems 2023-10-26 Junchang Sun , Shuai Ma , Shiyin Li

Beamforming enhances signal strength and quality by focusing energy in specific directions. This capability is particularly crucial in cell-free integrated sensing and communication (ISAC) systems, where multiple distributed access points…

Emerging Technologies · Computer Science 2026-01-21 Jiexin Zhang , Shu Xu , Chunguo Li , Yongming Huang , Luxi Yang

This paper addresses the topic of integrated sensing and communications (ISAC) in 5G and emerging 6G wireless networks. ISAC systems operate within shared, congested or even contested spectrum, aiming to deliver high performance in both…

Signal Processing · Electrical Eng. & Systems 2024-06-27 Visa Koivunen , Musa Furkan Keskin , Henk Wymeersch , Mikko Valkama , Nuria González-Prelcic

This paper studies an integrated sensing and communication (ISAC) system, where a multi-antenna base station transmits beamformed signals for joint downlink multi-user communication and radar sensing of an extended target (ET). By…

Information Theory · Computer Science 2024-06-05 Yiqiu Wang , Meixia Tao , Shu Sun

Magnetic induction (MI) based communication and power transfer systems have gained an increased attention in the recent years. Typical applications for these systems lie in the area of wireless charging, near-field communication, and…

Information Theory · Computer Science 2015-08-12 S. Kisseleff , I. F. Akyildiz , W. Gerstacker

Integrated sensing and communication (ISAC) has emerged as a transformative paradigm, enabling situationally aware and perceptive next-generation wireless networks through the co-design of shared network resources. With the adoption of…

Signal Processing · Electrical Eng. & Systems 2025-05-20 Ahmed Hussain , Asmaa Abdallah , Abdulkadir Celik , Ahmed M. Eltawil

Beamforming in multiple input multiple output (MIMO) systems is one of the key technologies for modern wireless communication. Creating appropriate sector-specific broadcast beams are essential for enhancing the coverage of cellular network…

Signal Processing · Electrical Eng. & Systems 2019-06-17 Rubayet Shafin , Hao Chen , Young Han Nam , Sooyoung Hur , Jeongho Park , Jianzhong , Zhang , Jeffrey Reed , Lingjia Liu

A novel time-efficient framework is proposed for improving the robustness of a broadband multiple-input multiple-output (MIMO) system against unknown interference under rapidly-varying channels. A mean-squared error (MSE) minimization…

Signal Processing · Electrical Eng. & Systems 2025-03-04 Jingjing Zhao , Jing Su , Kaiquan Cai , Yanbo Zhu , Yuanwei Liu , Naofal Al-Dhahir

Distributed integrated sensing and communication (D-ISAC) enables multiple spatially distributed nodes to cooperatively perform sensing and communication. However, achieving coherent cooperation across distributed nodes is challenging due…

Systems and Control · Electrical Eng. & Systems 2026-04-06 Seonghoon Yoo , Seulhyun Kwon , Kawon Han , Elaheh Ataeebojd , Mehdi Rasti , Joonhyuk Kang