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Integrated super-resolution sensing and communication (ISSAC) has emerged as a promising technology to achieve extremely high precision sensing for those key parameters, such as the angles of the sensing targets. In this paper, we propose…

Signal Processing · Electrical Eng. & Systems 2024-07-31 Jingran Xu , Huizhi Wang , Yong Zeng , Xiaoli Xu , Qingqing Wu , Fei Yang , Yan Chen , Abbas Jamalipour

Integrated sensing and communication (ISAC) has garnered significant attention in recent years. In this paper, we delve into the topic of sensing-assisted communication within ISAC systems. More specifically, a novel sensing-assisted…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Shuhan Wang , Aimin Tang , Xudong Wang , Wenze Qu

Integrated Sensing and Communication (ISAC) design is crucial for 6G and harmonizes environmental data sensing with communication, emphasizing the need to understand and model these elements. This paper delves into dual-channel models for…

Signal Processing · Electrical Eng. & Systems 2025-07-17 Alejandro Castilla , Saúl Fenollosa , Monika Drozdowska , Alejandro Lopez-Escudero , Sergio Micò-Rosa , Narcis Cardona

This paper studies a communication-centric integrated sensing and communication (ISAC) system, where a multi-antenna base station (BS) simultaneously performs downlink communication and target detection. A novel target detection and…

Information Theory · Computer Science 2024-02-21 Meng Hua , Qingqing Wu , Wen Chen , Abbas Jamalipour , Celimuge Wu , Octavia A. Dobre

This paper introduces a sensing management method for integrated sensing and communications (ISAC) in cell-free massive multiple-input multiple-output (MIMO) systems. Conventional communication systems employ channel estimation procedures…

Signal Processing · Electrical Eng. & Systems 2025-10-09 Eren Berk Kama , Murat Babek Salman , Isaac Skog , Emil Björnson

Integrated sensing and communication (ISAC), and intelligent reflecting surface (IRS) are envisioned as revolutionary technologies to enhance spectral and energy efficiencies for next wireless system generations. For the first time, this…

Signal Processing · Electrical Eng. & Systems 2024-04-09 Yu Liu , Ibrahim Al-Nahhal , Octavia A. Dobre , Fanggang Wang

Accurate estimation of the cascaded channel from a user equipment (UE) to a base station (BS) via each reconfigurable intelligent surface (RIS) element is critical to realizing the full potential of the RIS's ability to control the overall…

Signal Processing · Electrical Eng. & Systems 2024-11-08 Özlem Tuğfe Demir , Emil Björnson , Luca Sanguinetti

This paper presents a sensing management frame- work for integrated sensing and communications (ISAC) within cell-free massive multiple-input multiple-output (MIMO) systems to reduce pilot-based channel state information (CSI) acquisition…

Signal Processing · Electrical Eng. & Systems 2026-04-22 Eren Berk Kama , Murat Babek Salman , Isaac Skog , Emil Björnson

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

This work proposes an iterative channel estimation, detection and decoding (ICEDD) scheme for the uplink of multi-user multi-antenna systems assisted by multiple reconfigurable intelligent surfaces (RIS)}. A novel iterative code-aided…

Information Theory · Computer Science 2025-12-30 Roberto C. G. Porto , Rodrigo C. de Lamare

This paper tackles the challenge of wideband MIMO channel estimation within indoor millimeter-wave scenarios. Our proposed approach exploits the integrated sensing and communication paradigm, where sensing information aids in channel…

Signal Processing · Electrical Eng. & Systems 2023-09-27 Silvia Mura , Marouan Mizmizi , Umberto Spagnolini , Athina Petropulu

Integrated sensing and communications (ISAC) is one of the key enabling technologies in future sixth-generation (6G) networks. Current ISAC systems predominantly rely on deterministic pilot signals within the signal frame to accomplish…

Signal Processing · Electrical Eng. & Systems 2025-06-23 Chen Xu , Xianghao Yu , Fan Liu , Shi Jin

Channel estimation in the RIS-aided massive multiuser multiple-input single-output (MU-MISO) wireless communication systems is challenging due to the passive feature of RIS and the large number of reflecting elements that incur high channel…

Signal Processing · Electrical Eng. & Systems 2022-04-13 Gui Zhou , Cunhua Pan , Hong Ren , Petar Popovski , A. Lee Swindlehurst

The number of connected mobile devices and the amount of data traffic through these devices are expected to grow many-fold in future communication networks. To support the scale of this huge data traffic, more and more base stations and…

Signal Processing · Electrical Eng. & Systems 2022-06-14 Debamita Ghosh , Manjesh Kr. Hanawal , Nikola Zlatanov

This paper investigates the uplink cascaded channel estimation for intelligent-reflecting-surface (IRS)-assisted multi-user multiple-input-single-output systems. We focus on a sub-6 GHz scenario where the channel propagation is not sparse…

Signal Processing · Electrical Eng. & Systems 2022-09-07 Huayan Guo , Vincent K. N. Lau

Future wireless networks are poised to transform into integrated sensing and communication (ISAC) networks, unlocking groundbreaking services such as digital twinning. To harness the full potential of ISAC networks, it is essential to…

Information Theory · Computer Science 2024-10-31 Jie Yang , Hang Que , Tao Du , Le Liang , Xiao Li , Chao-Kai Wen , Shi Jin

Channel estimation is fundamental to wireless communications, yet it becomes increasingly challenging in massive multiple-input multiple-output (MIMO) systems where base stations employ hundreds of antennas. Traditional least-squares…

Signal Processing · Electrical Eng. & Systems 2025-11-04 Pinjun Zheng , Md. Jahangir Hossain , Anas Chaaban

Multi-user integrated sensing and communication (ISAC) assisted by intelligent reflecting surface (IRS) has been recently investigated to provide a high spectral and energy efficiency transmission. This paper proposes a practical channel…

Signal Processing · Electrical Eng. & Systems 2024-04-09 Yu Liu , Ibrahim Al-Nahhal , Octavia A. Dobre , Fanggang Wang , Hyundong Shin

We propose a channel estimation protocol to determine the uplink channel state information (CSI) at the base station for an intelligent reflecting surface (IRS) based wireless communication. More specifically, we develop a channel…

Signal Processing · Electrical Eng. & Systems 2025-04-15 Swapnil Saha , Md. Forkan Uddin

Reconfigurable intelligent surface (RIS) is a newly-emerged technology that, with its unique features, is considered to be a game changer for future wireless networks. Channel estimation is one of the most critical challenges for the…

Signal Processing · Electrical Eng. & Systems 2023-03-30 Mehdi Haghshenas , Parisa Ramezani , Emil Björnson
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