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To mitigate the radar and communication frequency overlapping caused by massive devices access, we propose a novel joint communication and sensing (JCS) system in this paper, where a micro base station (MiBS) can realize target sensing and…

This paper investigates multi-target detection in an integrated sensing and communication (ISAC) system within a cell-free massive MIMO (CF-mMIMO) framework. We adopt a user-centric approach for communication user equipments (UEs) and a…

Signal Processing · Electrical Eng. & Systems 2025-07-24 Zinat Behdad , Ozlem Tugfe Demir , Ki Won Sung , Cicek Cavdar

This paper studies an integrated sensing and communication (ISAC) system within a centralized cell-free massive MIMO (multiple-input multiple-output) network for target detection. ISAC transmit access points serve the user equipments in the…

Information Theory · Computer Science 2024-11-26 Zinat Behdad , Özlem Tuğfe Demir , Ki Won Sung , Emil Björnson , Cicek Cavdar

In this paper, we study optimal waveform design to maximize mutual information (MI) for a joint communication and (radio) sensing (JCAS, a.k.a., radar-communication) multi-input multi-output (MIMO) downlink system. We consider a typical…

Signal Processing · Electrical Eng. & Systems 2020-02-04 Xin Yuan , Zhiyong Feng , J. Andrew Zhang , Wei Ni , Ren Ping Liu , Zhiqing Wei , Changqiao Xu

Large-scale distributed antenna systems with many access points (APs) that serve the users by coherent joint transmission is being considered for 5G-and-beyond networks. The technology is called Cell-free Massive MIMO and can provide a more…

Information Theory · Computer Science 2020-06-30 Trinh Van Chien , Emil Björnson , Erik G. Larsson

In conventional joint communications and sensing (JCAS) designs for multi-carrier multiple-input multiple-output (MIMO) systems, the dual-functional waveforms are often optimized for the whole frequency band, resulting in limited…

Information Theory · Computer Science 2023-06-27 Nhan Thanh Nguyen , Nir Shlezinger , Khac-Hoang Ngo , Van-Dinh Nguyen , Markku Juntti

In-band Full-duplex joint communication and sensing systems require self interference cancellation as well as decoupling of the mutual interference between UL communication signals and radar echoes. We present sub-band full-duplex as an…

Signal Processing · Electrical Eng. & Systems 2025-10-29 Kwadwo Mensah Obeng Afrane , Yang Miao , André B. J. Kokkeler

This paper considers a cell-free integrated sensing and communication (ISAC) MIMO system, where distributed MIMO access points (APs) jointly serve the communication users and sense the target. For this setup, we derive a sensing SNR for…

Information Theory · Computer Science 2024-02-26 Umut Demirhan , Ahmed Alkhateeb

This paper considers a downlink Reconfigurable Intelligent Surface (RIS)-assisted Joint Communication and Sensing (JCAS) system within a physically-consistent setting, accounting for the effect of mutual coupling between RIS elements…

Networking and Internet Architecture · Computer Science 2026-01-14 Dilki Wijekoon , Amine Mezghani , Ekram Hossain

In distributed detection systems with wireless sensor networks, the communication between sensors and a fusion center is not perfect due to interference and limited transmitter power at the sensors to combat noise at the fusion center's…

Information Theory · Computer Science 2009-11-13 Xin Zhang , H. Vincent Poor , Mung Chiang

This paper introduces a novel joint communication and proactive monitoring (JCAM) system that simultaneously monitors multiple untrusted links and serves multiple legitimate users. The system leverages a cell-free massive multiple-input…

Signal Processing · Electrical Eng. & Systems 2026-04-07 Mustafa S. Abbas , Zahra Mobini , Hamid Reza Hashempour , Hien Quoc Ngo , Michail Matthaiou

Cell-free Massive MIMO systems consist of a large number of geographically distributed access points (APs) that serve users by coherent joint transmission. Downlink power allocation is important in these systems, to determine which APs…

Information Theory · Computer Science 2022-01-03 Sucharita Chakraborty , Emil Björnson , Luca Sanguinetti

This paper investigates a cell-free massive MIMO (multiple-input multiple-output) system where distributed access points (APs) perform integrated sensing and communications (ISAC) tasks, enabling simultaneous user communication and target…

Information Theory · Computer Science 2025-03-11 Sergi Liesegang , Stefano Buzzi , Carmen D'Andrea

This paper considers a cell-free massive multipleinput multiple-output (MIMO) integrated sensing and communication (ISAC) system, where distributed MIMO access points (APs) are used to jointly serve the communication users and detect the…

Information Theory · Computer Science 2023-10-16 Mohamed Elfiatoure , Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou

The sixth-generation (6G) network is envisioned to integrate communication and sensing functions, so as to improve the spectrum efficiency (SE) and support explosive novel applications. Although the similarities of wireless communication…

Signal Processing · Electrical Eng. & Systems 2022-12-06 Xinran Fang , Wei Feng , Yunfei Chen , Ning Ge , Yan Zhang

Joint communication and sensing (JCAS) has the potential to improve the overall energy, cost and frequency efficiency of IoT systems. As a first effort, we propose to optimize the MIMO-OFDM data symbols carried by sub-carriers for better…

Signal Processing · Electrical Eng. & Systems 2022-08-23 Kai Wu , J. Andrew Zhang , Zhitong Ni , Xiaojing Huang , Y. Jay Guo , Shanzhi Chen

The paper considers a scenario where a base station (BS), equipped with a large-scale antenna array, execute, using the same frequency range, both communication with mobile users and radar surveillance of the surrounding environment,…

Information Theory · Computer Science 2020-04-02 Stefano Buzzi , Carmen D'Andrea , Marco Lops

Joint communication and sensing (JCAS) is a promising technology for 6th Generation (6G) mobile networks, such as intelligent vehicular networks, intelligent manufacturing, and so on. Equipped with two spatially separated antenna arrays,…

Information Theory · Computer Science 2022-11-09 Xu Chen , Zhiyong Feng , Zhiqing Wei , J. Andrew Zhang , Xin Yuan , Ping Zhang

We propose a distributed implementation for integrated sensing and communication (ISAC) backed by a massive multiple input multiple output (CF-mMIMO) architecture without cells. Distributed multi-antenna access points (APs) simultaneously…

Information Theory · Computer Science 2025-02-13 Mohamed Elfiatoure , Mohammadali Mohammadi , Hien Quoc Ngo , Hyundong Shin , Michail Matthaiou

We investigate precoding for multi-user (MU) multiple-input multiple-output (MIMO) joint communications and sensing (JCAS) systems, taking into account the potential interference between sensing and communication channels. We derive…

Signal Processing · Electrical Eng. & Systems 2026-02-02 Charlotte Muth , Shrinivas Chimmalgi , Laurent Schmalen
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