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This manuscript investigates the information-theoretic limits of integrated sensing and communications (ISAC), aiming for simultaneous reliable communication and precise channel state estimation. We model such a system with a…

Information Theory · Computer Science 2024-03-29 Xinyang Li , Vlad C. Andrei , Aladin Djuhera , Ullrich J. Mönich , Holger Boche

Integrated sensing and communication (ISAC) has emerged as a key technology for future communication systems. In this paper, we provide a general framework to reveal the fundamental tradeoff between sensing and communication in OFDM…

Information Theory · Computer Science 2023-01-24 Zhe Huang , An liu , Rui Du , Tony Xiao Han

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 one sensing target and communicate with a…

Information Theory · Computer Science 2022-09-27 Haocheng Hua , Tony Xiao Han , Jie Xu

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

We investigate distributed multiple-input multiple-output (D-MIMO) integrated sensing and communication (ISAC) systems, in which multiple phase-synchronized access points (APs) jointly serve user equipments (UEs) while cooperatively…

Signal Processing · Electrical Eng. & Systems 2025-12-29 Venkatesh Tentu , Henk Wymeersch , Musa Furkan Keskin , Sauradeep Dey , Tommy Svensson

A communication setup is considered where a transmitter wishes to convey a message to a receiver and simultaneously estimates the state of that receiver through a common waveform. The state is estimated at the transmitter by means of…

Information Theory · Computer Science 2022-06-03 Mehrasa Ahmadipour , Mari Kobayashi , Miche`le Wigger , Giuseppe Caire

This paper addresses the fundamental performance limits of Integrated Sensing and Communication (ISAC) systems by introducing a novel converse bound based on rate-distortion theory. This rate-distortion bound (RDB) overcomes the restrictive…

Information Theory · Computer Science 2025-10-10 Mohammadreza Bakhshizadeh Mohajer , Alex Dytso , Daniela Tuninetti , Luca Barletta

The state-dependent memoryless channel (SDMC) is employed to model the integrated sensing and communication (ISAC) system, where the transmitter conveys messages to the receiver while simultaneously estimating the state parameter of…

Information Theory · Computer Science 2026-01-14 Lugaoze Feng , Guocheng Lv , Xunan Li , Ye Jin

Extremely large-scale antenna arrays enhance spectral efficiency and spatial resolution in integrated sensing and communication (ISAC) networks while expanding the Rayleigh distance, triggering a shift from conventional far-field plane…

Information Theory · Computer Science 2025-02-18 Jiasi Zhou , Cong Zhou , Yanjing Sun , Chintha Tellambura

This paper aims to design a set of transmitting waveforms in cognitive colocated Multi-Input Multi-Output (MIMO) radar systems considering the simultaneous minimization of spatial- and the range- Integrated Sidelobe Level Ratio (ISLR). The…

Signal Processing · Electrical Eng. & Systems 2021-07-07 Ehsan Raei , Mohammad Alaee-Kerahrood , M. R. Bhavani Shankar

This paper aims to analyze the stochastic performance of a multiple input multiple output (MIMO) integrated sensing and communication (ISAC) system in a downlink scenario, where a base station (BS) transmits a dual-functional…

Information Theory · Computer Science 2023-05-25 Marziyeh Soltani , Mahtab Mirmohseni , Rahim Tafazolli

ISAC is recognized as a promising technology for the next-generation wireless networks, which provides significant performance gains over individual S&C systems via the shared use of wireless resources. The characterization of the S&C…

Information Theory · Computer Science 2023-06-08 Yifeng Xiong , Fan Liu , Yuanhao Cui , Weijie Yuan , Tony Xiao Han , Giuseppe Caire

Integrated sensing and communications (ISAC) has been recognized as a key component in the envisioned 6G communication systems. Understanding the fundamental performance tradeoff between sensing and communication functionalities is…

Information Theory · Computer Science 2023-08-29 Yifeng Xiong , Fan Liu , Marco Lops

This paper studies the multi-antenna multicast channel with integrated sensing and communication (ISAC), in which a multi-antenna base station (BS) sends common messages to a set of single-antenna communication users (CUs) and…

Information Theory · Computer Science 2022-08-09 Zixiang Ren , Xianxin Song , Yuan Fang , Ling Qiu , Jie Xu

The ultimate goal of enabling sensing through the cellular network is to obtain coordinated sensing of an unprecedented scale, through distributed integrated sensing and communication (D-ISAC). This, however, introduces challenges related…

Signal Processing · Electrical Eng. & Systems 2025-01-31 Kawon Han , Kaitao Meng , Christos Masouros

In this paper, we investigate the fundamental limits of MIMO-OFDM integrated sensing and communications (ISAC) systems based on a Bayesian Cram\'er-Rao bound (BCRB) analysis. We derive the BCRB for joint channel parameter estimation and…

Information Theory · Computer Science 2023-08-24 Xinyang Li , Vlad Costin Andrei , Ullrich J Mönich , Holger Boche

In connected vehicular networks, it is vital to have vehicular nodes that are capable of sensing about surrounding environments and exchanging messages with each other for automating and coordinating purpose. Towards this end, integrated…

Information Theory · Computer Science 2022-05-05 Yao Liu , Min Li , An Liu , Jianmin Lu , Tony Xiao Han

This paper unifies integrated sensing and communication (ISAC) and simultaneous wireless information and power transfer (SWIPT), by investigating a new multi-functional multiple-input multiple-output (MIMO) system integrating wireless…

Information Theory · Computer Science 2022-11-01 Yilong Chen , Haocheng Hua , Jie Xu

Integrated sensing and communication (ISAC) systems potentially encounter significant performance degradation in densely obstructed urban and non-line-of-sight scenarios, thus limiting their effectiveness in practical deployments. To deal…

Cryptography and Security · Computer Science 2025-07-15 Yifan Zhang , Yu Bai , Riku Jantti , Zheng Yan , Christos Masouros , Zhu Han

This paper studies the performance trade-off in a multi-user backscatter communication (BackCom) system for integrated sensing and communications (ISAC), where the multi-antenna ISAC transmitter sends excitation signals to power multiple…

Information Theory · Computer Science 2024-06-04 Yuanming Tian , Dan Wang , Chuan Huang , Wei Zhang
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