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As a critical technology for next-generation communication networks, integrated sensing and communication (ISAC) aims to achieve the harmonious coexistence of communication and sensing. The degrees-of-freedom (DoF) of ISAC is limited due to…

Information Theory · Computer Science 2024-10-28 Yongqing Xu , Yong Li , Tony Q. S. Quek

As the demand for wireless connectivity continues to soar, the fifth generation and beyond wireless networks are exploring new ways to efficiently utilize the wireless spectrum and reduce hardware costs. One such approach is the integration…

Signal Processing · Electrical Eng. & Systems 2024-08-20 Ahmet M. Elbir , Kumar Vijay Mishra , Asmaa Abdallah , Abdulkadir Celik , Ahmed M. Eltawil

This paper addresses the design of transmit precoder and receive combiner matrices to support $N_{\rm s}$ independent data streams over a time-division duplex (TDD) point-to-point massive multiple-input multiple-output (MIMO) channel with…

Information Theory · Computer Science 2024-06-10 Tao Jiang , Wei Yu

The implementation of integrated sensing and communication (ISAC) highly depends on the effective beamforming design exploiting accurate instantaneous channel state information (ICSI). However, channel tracking in ISAC requires large amount…

Information Theory · Computer Science 2022-02-09 Chang Liu , Weijie Yuan , Shuangyang Li , Xuemeng Liu , Derrick Wing Kwan Ng , Yonghui Li

Integrated sensing and communication (ISAC) exhibits notable potential for sensing the unmanned aerial vehicles (UAVs), facilitating real-time monitoring of UAVs for security insurance. Due to the low sensing accuracy of single base…

Signal Processing · Electrical Eng. & Systems 2024-04-22 Xi Lu , Zhiqing Wei , Ruizhong Xu , Lin Wang , Bohao Lu , Jinghui Piao

In this paper, sensing-assisted secure communication in a multi-user multi-eavesdropper integrated sensing and communication (ISAC) system is investigated. Confidential communication signals and dedicated sensing signals are jointly…

Signal Processing · Electrical Eng. & Systems 2025-10-07 Fanghao Xia , Zesong Fei , Xinyi Wang , Nanchi Su , Zhaolin Wang , Yuanwei Liu , Jie Xu

This paper addresses precoder design for secure multiple-input multiple-output (MIMO) integrated sensing and communications (ISAC) systems. We introduce a MIMO channel with a multiple-antenna eavesdropper and a multiple-antenna sensing…

Signal Processing · Electrical Eng. & Systems 2026-03-09 Seongkyu Jung , Namyoon Lee , Jeonghun Park

In this paper, we propose a precoding framework for frequency division duplex (FDD) integrated sensing and communication (ISAC) systems with multiple-input multiple-output (MIMO). Specifically, we aim to maximize ergodic sum spectral…

Information Theory · Computer Science 2025-06-12 Namhyun Kim , Juntaek Han , Jinseok Choi , Ahmed Alkhateeb , Chan-Byoung Chae , Jeonghun Park

In this paper, we investigate a bistatic multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system over block-fading channels, focusing on the scenario where the sensing and communication receivers (Rxs) are…

Information Theory · Computer Science 2026-05-18 Dongsheng Peng , Chengkai Zhao , Yihong Li , Zhiqing Wei , Jun Chen , Ping Chen

Integrated Sensing and Communications (ISAC) is emerging as a key enabler for 6G networks, with signaling design at the core of its evolution. This paper reviews the paradigm shift of ISAC signaling designs from pilot-aided sensing to data…

Signal Processing · Electrical Eng. & Systems 2025-12-01 Yunxin Li , Ying Zhang , Christos Masouros , Sofie Pollin , Fan Liu

The integrated sensing and communication (ISAC) system under multi-input multi-output (MIMO) architecture achieves dual functionalities of sensing and communication on the same platform by utilizing spatial gain, which provides a feasible…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Yangyang Niu , Zhiqing Wei , Dingyou Ma , Xiaoyu Yang , Huici Wu , Zhiyong Feng , Jianhua Yuan

This paper investigates a Stacked Intelligent Metasurfaces (SIM)-assisted Integrated Sensing and Communications (ISAC) system. An extended target model is considered, where the BS aims to estimate the complete target response matrix…

Information Theory · Computer Science 2024-05-03 Ziqing Wang , Hongzheng Liu , Jianan Zhang , Rujing Xiong , Kai Wan , Xuewen Qian , Marco Di Renzo , Robert Caiming Qiu

The integrated sensing and communications (ISAC) can achieve the sharing of hardware and spectrum resources, enabling efficient data transmission and environmental sensing. This fusion is particularly important for unmanned aerial vehicle…

Signal Processing · Electrical Eng. & Systems 2025-10-20 Yi Tao , Zhen Gao , Zhuoran Li , Ziwei Wan , Tuan Li , Chunli Zhu , Lei Chen , Guanghui Wen , Dezhi Zheng , Dusit Niyato

In this paper, we shed light on the performance gain of integrated sensing and communications (ISAC) from the perspective of channel correlations between radar sensing and communication (S&C), namely ISAC subspace correlation. To begin…

Signal Processing · Electrical Eng. & Systems 2022-11-03 Shihang Lu , Xiao Meng , Zhen Du , Yifeng Xiong , Fan Liu

Integrated sensing and communication (ISAC) enables simultaneous localization, environment perception, and data exchange for connected autonomous vehicles. However, most existing ISAC designs prioritize sensing accuracy and communication…

Signal Processing · Electrical Eng. & Systems 2025-10-28 Xibin Jin , Guoliang Li , Shuai Wang , Fan Liu , Miaowen Wen , Huseyin Arslan , Derrick Wing Kwan Ng , Chengzhong Xu

In this paper, we formulate the precoding problem of integrated sensing and communication (ISAC) waveform as a non-convex quadratically constrainted quadratic program (QCQP), in which the weighted sum of communication multi-user…

Signal Processing · Electrical Eng. & Systems 2024-02-13 Yating Chen , Cai Wen , Yan Huang , Le Liang , Jie Li , Hui Zhang , Wei Hong

This paper considers information-theoretic models for integrated sensing and communication (ISAC) over multi-access channels (MAC) and device-to-device (D2D) communication. The models are general and include as special cases scenarios with…

Information Theory · Computer Science 2023-04-05 Mehrasa Ahmadipour , Michèle Wigger

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

In the evolving landscape of high-speed communication, the shift from traditional pilot-based methods to a Sensing-Oriented Approach (SOA) is anticipated to gain momentum. This paper delves into the development of an innovative Integrated…

Numerical Analysis · Mathematics 2024-12-13 Shengcai Zhou , Halvin Yang , Luping Xiang , Kun Yang

Integrated sensing and communication (ISAC) is widely recognized as a pivotal enabling technique for the advancement of future wireless networks. This paper aims to efficiently exploit the inherent sparsity of echo signals for the…

Information Theory · Computer Science 2024-01-01 Zichao Xiao , Rang Liu , Ming Li , Wei Wang , Qian Liu