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When applying integrated sensing and communications (ISAC) in future mobile networks, many sensing tasks have low latency requirements, preferably being implemented at terminals. However, terminals often have limited computing capabilities…

信号处理 · 电气工程与系统科学 2024-08-29 Peng Liu , Zesong Fei , Xinyi Wang , Jingxuan Huang , Jie Hu , J. Andrew Zhang

Achieving effective uplink bistatic ISAC over an OFDM waveform gives rise to challenging interference structures. These are mostly due to unequal direct- and echo-path contributions and Doppler-induced ICI, rendering orthogonal resource…

信号处理 · 电气工程与系统科学 2026-05-22 Bruno F. Costa , Anup Mishra , Israel Leyva-Mayorga , Taufik Abrão , Petar Popovski

Integrated sensing and communication (ISAC) is a promising technology to fully utilize the precious spectrum and hardware in wireless systems, which has attracted significant attentions recently. This paper studies ISAC for the important…

信号处理 · 电气工程与系统科学 2021-08-17 Zhiqiang Xiao , Yong Zeng

Integrated sensing and communications (ISAC) is considered a key enabler to support application scenarios such as the Internet-of-Things (IoT) in which both communications and sensing play significant roles. Multi-carrier waveforms, such as…

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…

信号处理 · 电气工程与系统科学 2025-10-09 Eren Berk Kama , Murat Babek Salman , Isaac Skog , Emil Björnson

Applying integrated sensing and communication (ISAC) to a cell-free massive multiple-input multiple-output (CF mMIMO) architecture has attracted increasing attention. This approach equips CF mMIMO networks with sensing capabilities and…

信息论 · 计算机科学 2024-05-31 Yifei Fan , Shaochuan Wu , Xixi Bi , Guoyu Li

Multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems rely on digital or hybrid digital and analog designs for beamforming against frequency-selective fading, which suffer from high hardware…

信号处理 · 电气工程与系统科学 2026-01-26 Zheao Li , Jiancheng An , Chau Yuen

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…

信息论 · 计算机科学 2024-02-26 Umut Demirhan , Ahmed Alkhateeb

This article analyzes the performance of sensing and communications (S\&C) achieved by a multiple-input multiple-output downlink integrated S\&C (ISAC) system. Three ISAC scenarios are analyzed, including the sensing-centric design,…

信息论 · 计算机科学 2023-01-10 Chongjun Ouyang , Yuanwei Liu , Hongwen Yang

Integrated sensing and communication (ISAC) is a key technology of next generation wireless communication. Backscatter communication (BackCom) plays an important role for internet of things (IoT). Then the integration of ISAC with BackCom…

信号处理 · 电气工程与系统科学 2024-09-06 Zongyao Zhao , Tiankuo Wei , Zhenyu Liu , Xinke Tang , Xiao-Ping Zhang , Yuhan Dong

Integrated sensing and communication (ISAC) is a promising paradigm for future wireless systems due to spectrum reuse, hardware sharing, and joint waveform design. In dynamic scenes, Doppler shifts degrade both sensing and communication,…

信号处理 · 电气工程与系统科学 2025-12-04 Yuan Liu , Wen-Xuan Long , M. R. Bhavani Shankar , Marco Moretti , Rui Chen , Björn Ottersten

In this paper, an integrated sensing and communication (ISAC) system is investigated. Initially, we introduce a design criterion wherein sensing data acquired from the preceding time slot is employed for instantaneous optimal beamforming in…

计算几何 · 计算机科学 2024-10-08 Shengcai Zhou , Luping Xiang , Kun Yang

Integrated sensing and communications (ISAC) is considered an innovative technology in sixth-generation (6G) wireless networks, where utilizing orthogonal frequency division multiplexing (OFDM) communication signals for sensing provides a…

信号处理 · 电气工程与系统科学 2025-10-15 Zhen Du , Jingjing Xu , Yifeng Xiong , Jie Wang , Musa Furkan Keskin , Henk Wymeersch , Fan Liu , Shi Jin

Beamforming design has been widely investigated for integrated sensing and communication (ISAC) systems with full-duplex (FD) sensing and half-duplex (HD) communication. To achieve higher spectral efficiency, in this paper, we extend…

信息论 · 计算机科学 2023-04-20 Zhenyao He , Wei Xu , Hong Shen , Derrick Wing Kwan Ng , Yonina C. Eldar , Xiaohu You

In-band Full-Duplex (FD) Multiple-Input Multiple-Output (MIMO) systems offer a significant opportunity for Integrated Sensing and Communications (ISAC) due to their capability to realize simultaneous signal transmissions and receptions.…

信息论 · 计算机科学 2024-10-10 Besma Smida , George C. Alexandropoulos , Taneli Riihonen , Md Atiqul Islam

This paper investigates a reconfigurable intelligent surface (RIS)-aided wideband massive multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system with low-resolution analog-to-digital converters…

Integrated sensing and communication (ISAC) is a key technology for future 6G networks. Most existing studies focus on monostatic and/or bistatic setups with limited coverage and capabilities. Networked ISAC systems with distributed base…

信号处理 · 电气工程与系统科学 2025-10-14 Yuan Guo , Wen Chen , Qingqing Wu , Yang Liu , Qiong Wu , Kunlun Wang , Jun Li , Lexi Xu

We propose a novel pilot-free multi-user uplink framework for integrated sensing and communication (ISAC) in mm-wave networks, where single-antenna users transmit orthogonal frequency division multiplexing signals without dedicated pilots.…

信号处理 · 电气工程与系统科学 2025-05-05 Sajad Daei , Gabor Fodor , Mikael Skoglund

In the context of communication-centric integrated sensing and communication (ISAC), the orthogonal frequency division multiplexing (OFDM) waveform was proven to be optimal in minimizing ranging sidelobes when random signaling is used. A…

信号处理 · 电气工程与系统科学 2025-05-06 Karim A. Said , Ibraheem Alturki , Husheng Li , Elizabeth Bentley , Lingjia Liu

The present paper deals with an OFDM-based uplink within a multi-user MIMO (MU-MIMO) system where a massive MIMO approach is employed. In this context, the linear detectors Minimum Mean-Squared Error (MMSE), Zero Forcing (ZF) and Maximum…