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This paper tackles the problem of joint active and passive beamforming optimization for an intelligent reflective surface (IRS)-assisted multi-user downlink multiple-input multiple-output (MIMO) communication system. We aim to maximize…

Information Theory · Computer Science 2021-06-17 Haseeb Ur Rehman , Faouzi Bellili , Amine Mezghani , and Ekram Hossain

In this work, we investigate a multistatic MIMO-OFDM joint sensing and communication (JSC) system that leverages cooperation among spatially distributed base stations (BSs) to detect and localize multiple targets through soft fusion of…

Signal Processing · Electrical Eng. & Systems 2025-03-31 Elisabetta Matricardi , Lorenzo Pucci , Elia Favarelli , Enrico Paolini , Andrea Giorgetti

This paper investigates the optimization of beamforming design in a system with integrated sensing and communication (ISAC), where the base station (BS) sends signals for simultaneous multiuser communication and radar sensing. We aim at…

Information Theory · Computer Science 2022-04-27 Zhenyao He , Wei Xu , Hong Shen , Yongming Huang , Huahua Xiao

This paper investigates the issues of the hybrid beamforming design for the orthogonal frequency division multiplexing dual-function radar-communication (DFRC) system in multiple task scenarios involving the radar scanning and detection…

Signal Processing · Electrical Eng. & Systems 2025-04-29 Lingyun Xu , Bowen Wang , Ziyang Cheng

This paper studies an integrated sensing and communication (ISAC) system where a multi-antenna base station (BS) communicates with multiple single-antenna users in the downlink and senses the unknown and random angle information of a target…

Information Theory · Computer Science 2026-04-27 Chan Xu , Shuowen Zhang

In this paper, we propose a multi-input multi-output transmit beamforming optimization model for joint radar sensing and multi-user communications, where the design of the beamformers is formulated as an optimization problem whose objective…

Optimization and Control · Mathematics 2024-04-02 Jiageng Wu , Zhiguo Wang , Ya-Feng Liu , Fan Liu

Mixed-resolution architectures, combining high-resolution (analog) data with coarsely quantized (e.g., 1-bit) data, are widely employed in emerging communication and radar systems to reduce hardware costs and power consumption. However, the…

Signal Processing · Electrical Eng. & Systems 2025-08-29 Yaniv Mazor , Tirza Routtenberg

This letter considers a beyond diagonal reconfigurable intelligent surface (BD-RIS) aided integrated sensing and communication (ISAC) system, where the BD-RIS can help a multi-antenna base station (BS) serve multiple user equipments (UEs)…

Signal Processing · Electrical Eng. & Systems 2025-08-18 Xiaoqi Zhang , Liang Liu , Shuowen Zhang , Weifeng Zhu , Haijun Zhang

Detecting weak targets is one of the main challenges for integrated sensing and communication (ISAC) systems. Sensing and communication suffer from a performance trade-off in ISAC systems. As the communication demand increases, sensing…

Signal Processing · Electrical Eng. & Systems 2024-11-04 Zongyao Zhao , Zhenyu Liu , Rui Jiang , Zhongyi Li , Xiao-Ping Zhang , Xinke Tang , Yuhan Dong

In this letter, we investigate a robust beamforming problem for localization-aided millimeter wave (mmWave) communication systems. To handle this problem, we propose a novel restriction and relaxation (R&R) method. The proposed R&R method…

Information Theory · Computer Science 2022-04-01 Junchang Sun , Shuai Ma , Shiyin Li , Ruixin Yang , Minghui Min , Gonzalo Seco-Granados

Characterizing the performance trade-offs between sensing and communication subsystems is essential for enabling integrated sensing and communication systems. Various metrics exist for each subsystem; however, this study focuses on the…

In this work, we consider a cell-free massive multiple-input multiple-output (MIMO) integarted sensing and communications (ISAC) system with maximum-ratio transmission schemes combined with multistatic radar-type sensing. Our focus lies on…

Signal Processing · Electrical Eng. & Systems 2024-11-12 Nhan Thanh Nguyen , Tianyu Fang , Hien Quoc Ngo , Markku Juntti

This paper considers distributed linear beamforming in downlink multicell multiuser orthogonal frequency-division multiple access networks. A fast convergent solution maximizing the weighted sum- rate with per base station (BS) transmiting…

Information Theory · Computer Science 2017-08-16 Mirza Golam Kibria , Hidekazu Murata , Jun Zheng

This paper proposes an $\alpha$-fair multistatic integrated sensing and communication (ISAC) framework for multi-user multi-input multi-output (MIMO)-orthogonal frequency division multiplexing (OFDM) systems, where communication users act…

Information Theory · Computer Science 2026-04-01 Hyeonho Noh , Jonggyu Jang

Beamformers often trade off white noise gain against the ability to suppress interferers. With distributed microphone arrays, this trade-off becomes crucial as different arrays capture vastly different magnitude and phase differences for…

Sound · Computer Science 2025-07-09 Manan Mittal , Ryan M. Corey , Andrew C. Singer

In this paper, the problem of maximizing the sum of data rates of all users in an intelligent reflecting surface (IRS)-assisted millimeter wave multicast multiple-input multiple-output communication system is studied. In the considered…

Signal Processing · Electrical Eng. & Systems 2022-08-16 Songling Zhang , Zhaohui Yang , Mingzhe Chen , Danpu Liu , Kai-Kit Wong , H. Vincent Poor

Controlling the radar beam-pattern by optimizing the transmit covariance matrix is a well-established approach for performance enhancement in multiple-input-multiple-output (MIMO) radars. In this paper, we investigate the joint optimization…

Signal Processing · Electrical Eng. & Systems 2022-08-10 Arindam Bose , Shahin Khobahi , Mojtaba Soltanalian

In this paper, we study a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system where one multi-antenna base station (BS) sends information to a user with multiple antennas in the downlink and…

Information Theory · Computer Science 2023-12-21 Chan Xu , Shuowen Zhang

In this paper, we study the transmit signal optimization in a multiple-input multiple-output (MIMO) radar system for sensing the angle information of multiple targets via their reflected echo signals. We consider a challenging and practical…

Information Theory · Computer Science 2024-09-16 Jiayi Yao , Shuowen Zhang

Integrated sensing and communication (ISAC) has emerged as a promising paradigm for next-generation (6G) wireless networks, unifying radar sensing and communication on a shared hardware platform. This paper proposes a dynamic array…

Signal Processing · Electrical Eng. & Systems 2025-03-19 Rang Liu , Ming Li , A. Lee Swindlehurst
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