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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

In this paper, we combine the network-assisted full-duplex (NAFD) technology and distributed radar sensing to implement integrated sensing and communication (ISAC). The ISAC system features both uplink and downlink remote radio units (RRUs)…

Information Theory · Computer Science 2023-11-14 Fan Zeng , Jingxuan Yu , Jiamin Li , Feiyang Liu , Dongming Wang , Xiaohu You

This paper studies the interference broadcast channel comprising multiple multi-antenna Base Stations (BSs), each controlling a beyond diagonal Reconfigurable Intelligent Surface (RIS) and serving multiple single-antenna users. Wideband…

Information Theory · Computer Science 2024-09-09 Konstantinos D. Katsanos , Paolo Di Lorenzo , George C. Alexandropoulos

Rate-splitting multiple access (RSMA) has been recognized as a promising and powerful multiple access (MA) scheme, non-orthogonal transmission framework and interference management strategy for 6G. Inspired by the appealing spectral…

Information Theory · Computer Science 2022-03-11 Tianyu Fang , Yijie Mao , Shanpu Shen , Zhencai Zhu , Bruno Clerckx

Reconfigurable Intelligent Surface (RIS) is a promising solution to reconfigure the wireless environment in a controllable way. To compensate for the double-fading attenuation in the RIS-aided link, a large number of passive reflecting…

Information Theory · Computer Science 2021-03-02 Ruizhe Long , Ying-Chang Liang , Yiyang Pei , Erik G. Larsson

In this paper, an intelligent reflecting surface (IRS) is leveraged to enhance the physical layer security of an integrated sensing and communication (ISAC) system in which the IRS is deployed to not only assist the downlink communication…

Information Theory · Computer Science 2022-07-20 Meng Hua , Qingqing Wu , Wen Chen , Octavia A. Dobre , A. Lee Swindlehurst

Reconfigurable intelligent surfaces (RIS) have been actively researched as a potential technique for future wireless communications, which intelligently ameliorate the signal propagation environment. In the conventional design, each RIS…

Information Theory · Computer Science 2022-03-17 Qingchao Li , Mohammed El-Hajjar , Ibrahim Hemadeh , Arman Shojaeifard , Alain A. M. Mourad , Bruno Clerckx , Lajos Hanzo

Integrated sensing and communications (ISAC) is a spectrum-sharing paradigm that allows different users to jointly utilize and access the crowded electromagnetic spectrum. In this context, intelligent reflecting surfaces (IRSs) have lately…

Information Theory · Computer Science 2023-08-31 Zahra Esmaeilbeig , Arian Eamaz , Kumar Vijay Mishra , Mojtaba Soltanalian

The cell-free integrated sensing and communication (CF-ISAC) architecture is a promising enabler for 6G, offering spectrum efficiency and ubiquitous coverage. However, real deployments suffer from hardware impairments, especially nonlinear…

Signal Processing · Electrical Eng. & Systems 2025-08-26 Yue Xiu , Yang Zhao , Ran Yang , Zheng Dong , Wanting Lyu , Zeyuan Zhang , Dusit Niyato , Guangyi Liu , Ning Wei

In this paper, we propose a novel transmissive reconfigurable intelligent surface (TRIS) transceiver-empowered distributed cooperative integrated sensing and communication (ISAC) network to enhance coverage as well as to enhance wireless…

Information Theory · Computer Science 2024-11-19 Ziwei Liu , Wen Chen , Qingqing Wu , Zhendong Li , Qiong Wu , Nan Cheng , Jun Li

Integrated sensing and communication (ISAC) aims to unify radar and communication systems through a combination of joint hardware, joint waveforms, joint signal design, and joint signal processing. At high carrier frequencies, where ISAC is…

Signal Processing · Electrical Eng. & Systems 2021-11-04 José Miguel Mateos-Ramos , Jinxiang Song , Yibo Wu , Christian Häger , Musa Furkan Keskin , Vijaya Yajnanarayana , Henk Wymeersch

Integrated Sensing and Communication (ISAC) systems promise to revolutionize wireless networks by concurrently supporting high-resolution sensing and high-performance communication. This paper presents a novel radio access technology (RAT)…

Signal Processing · Electrical Eng. & Systems 2024-10-16 Yulan Gao , Ziqiang Ye , Ming Xiao , Yue Xiao

The fusion of cognitive radio (CR) and integrated sensing and communication (ISAC), enabled by stacked intelligent metasurfaces (SIMs), offers a promising path for multi-functional programmable front ends in 6G and beyond. In this paper we…

Signal Processing · Electrical Eng. & Systems 2025-11-19 Alireza Fadakar , Andreas F. Molisch

Extensive research on Reconfigurable Intelligent Surfaces (RIS) has primarily focused on optimizing reflective coefficients for passive beamforming in specific target directions. This optimization typically assumes prior knowledge of the…

Signal Processing · Electrical Eng. & Systems 2025-12-05 Xiao Cai , Hei Victor Cheng , Daniel E. Lucani

Delay alignment modulation (DAM) has been recently proposed to enable inter-symbol interference (ISI)-free single-carrier (SC) communication without relying on sophisticated channel equalization. The key idea of DAM is to pre-introduce…

Signal Processing · Electrical Eng. & Systems 2022-06-09 Zhiqiang Xiao , Yong Zeng

The plethora of wirelessly connected devices, whose deployment density is expected to largely increase in the upcoming sixth Generation (6G) of wireless networks, will naturally necessitate substantial advances in multiple access schemes.…

Information Theory · Computer Science 2024-10-29 Konstantinos D. Katsanos , Paolo Di Lorenzo , George C. Alexandropoulos

Reconfigurable intelligent surface (RIS) enhances signal quality by adjusting the phase of electromagnetic waves in wireless communication. Spatial modulation (SM), a prominent index modulation (IM) technique, provides high spectral…

Signal Processing · Electrical Eng. & Systems 2023-11-23 Burak Ahmet Ozden , Erdogan Aydin

Beyond diagonal intelligent reflecting surface (BD-IRS) is a new promising IRS architecture for which the reflection matrix is not limited to the diagonal structure as for conventional IRS. In this paper, we study a BD-IRS aided uplink…

Information Theory · Computer Science 2025-06-25 Shuo Zheng , Shuowen Zhang

This paper proposes a reinforcement learning (RL)-aided cognitive framework for massive MIMO-based integrated sensing and communication (ISAC) systems employing a uniform planar array (UPA). The focus is on enhancing radar sensing…

Signal Processing · Electrical Eng. & Systems 2025-11-05 Adam Umra , Aya M. Ahmed , Aydin Sezgin

The harsh environment and scarce resources post-disaster drive the equipment to be miniaturized and portable. Based on this, integrated sensing and communication (ISAC) systems play a significant role in providing emergency wireless…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Zhuohui Yao , Wenchi Cheng , Liping Liang , Tao Zhang , Jun Gong
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