English
Related papers

Related papers: Pilot Allocation and Receiver Design for Cell-Free…

200 papers

Cell-free (CF) integrated sensing and communication (ISAC) combines CF architecture with ISAC. CF employs distributed access points, eliminates cell boundaries, and enhances coverage, spectral efficiency, and reliability. ISAC unifies radar…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Diluka Galappaththige , Mohammadali Mohammadi , Gayan Aruma Baduge , Chintha Tellambura

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

We investigate the beampattern design problem for mono-static multi-user (MU) multi-point-target integrated sensing and communication (ISAC) systems, where a dual-function multiple-input multiple-output (DF-MIMO) base station (BS) performs…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Wilson de Souza Junior , Taufik Abrao , Amine Mezghani , Ekram Hossain

Cell-free (CF) massive multiple-input multiple-output (MIMO) systems, which exploit many geographically distributed access points to coherently serve user equipments via spatial multiplexing on the same time-frequency resource, has become a…

Information Theory · Computer Science 2023-06-14 Jiakang Zheng , Jiayi Zhang , Hongyang Du , Dusit Niyato , Bo Ai , Mérouane Debbah , Khaled B. Letaief

We study support for unmanned aerial vehicle (UAV) communications through a cell-free massive MIMO architecture, wherein a large number of access points (APs) is deployed in place of large co-located massive MIMO arrays. We consider also a…

Information Theory · Computer Science 2020-01-13 Carmen D'Andrea , Adrian Garcia-Rodriguez , Giovanni Geraci , Lorenzo Galati Giordano , Stefano Buzzi

Integrated sensing and communication (ISAC) is one of the usage scenarios for the sixth generation (6G) wireless networks. In this paper, we study cooperative ISAC in cell-free multiple-input multiple-output (MIMO) systems, where multiple…

Signal Processing · Electrical Eng. & Systems 2024-10-15 Zihuan Wang , Vincent W. S. Wong

This paper studies a challenging scenario in a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system where the locations of the sensing target and the communication user are both unknown and random, while…

Information Theory · Computer Science 2026-02-10 Yizhuo Wang , Shuowen Zhang

This paper concerns the coordinate multi-cell beamforming design for integrated sensing and communications (ISAC). In particular, we assume that each base station (BS) has massive antennas. The optimization objective is to maximize a…

Information Theory · Computer Science 2025-03-31 Yannan Chen , Yi Feng , Xiaoyang Li , Licheng Zhao , Kaiming Shen

This letter focuses on enhancing target detection performance for a multi-user integrated sensing and communication (ISAC) system using orthogonal time frequency space (OTFS)-aided cell-free multiple-input multiple-output (MIMO) technology…

Information Theory · Computer Science 2024-10-23 Shivani Singh , Amudheesan Nakkeeran , Prem Singh , Ekant Sharma , Jyotsna Bapat

Cell-free (CF) massive multiple-input-multiple-output (MIMO) has emerged as an alternative deployment for conventional cellular massive MIMO networks. Prior works relied on the strong assumption (quite idealized) that the APs are uniformly…

Information Theory · Computer Science 2020-10-27 Anastasios Papazafeiropoulos , Pandelis Kourtessis , Marco Di Renzo , Symeon Chatzinotas , John M. Senior

In practical cell-free (CF) massive multiple-input multiple-output (MIMO) networks with distributed and low-cost access points, the asynchronous arrival of signals at the user equipments increases multi-user interference that degrades the…

Information Theory · Computer Science 2022-12-07 Jiakang Zheng , Jiayi Zhang , Julian Cheng , Victor C. M. Leung , Derrick Wing Kwan Ng , Bo Ai

In-band full-duplex (FD) operation is practically more suited for short-range communications such as WiFi and small-cell networks, due to its current practical limitations on the self-interference cancellation. In addition, cell-free…

Signal Processing · Electrical Eng. & Systems 2020-01-22 Hieu V. Nguyen , Van-Dinh Nguyen , Octavia A. Dobre , Shree Krishna Sharma , Symeon Chatzinotas , Björn Ottersten , Oh-Soon Shin

In this paper, we investigate integrated sensing and communication (ISAC) in a cell-free (CF) multiple-input multiple-output (MIMO) network, where each access point functions either as an ISAC transmitter or as a sensing receiver. We devote…

Signal Processing · Electrical Eng. & Systems 2026-03-05 Guoqing Xia , Pei Xiao , Qu Luo , Bing Ji , Yue Zhang , Cicek Cavdar , Huiyu Zhou

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 work, we propose a Gaussian mixture model (GMM)-based pilot design scheme for downlink (DL) channel estimation in single- and multi-user multiple-input multiple-output (MIMO) frequency division duplex (FDD) systems. In an initial…

Information Theory · Computer Science 2024-08-08 Nurettin Turan , Benedikt Böck , Benedikt Fesl , Michael Joham , Deniz Gündüz , Wolfgang Utschick

This paper proposes an interleaved transceiver design method for a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system utilizing orthogonal frequency division multiplexing (OFDM) waveforms. We consider a…

Signal Processing · Electrical Eng. & Systems 2025-08-15 Yating Chen , Cai Wen , Yan Huang , Jinye Peng , Wei Hong , Timothy N. Davidson

This paper takes a new look at Cell-free Massive MIMO (multiple-input multiple-output) through the lens of the dynamic cooperation cluster framework from the Network MIMO literature. The purpose is to identify and address scalability issues…

Information Theory · Computer Science 2019-06-27 Emil Björnson , Luca Sanguinetti

The integrated sensing and communication (ISAC) system under multi-input multi-output (MIMO) architecture achieves dual functionalities of sensing and communication on the same platform by utilizing spatial gain, which provides a feasible…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Yangyang Niu , Zhiqing Wei , Dingyou Ma , Xiaoyu Yang , Huici Wu , Zhiyong Feng , Jianhua Yuan

We consider a two-way half-duplex decode-and-forward (DF) relaying system with multiple pairs of single-antenna users assisted by a cell-free (CF) massive multiple-input multiple-output (mMIMO) architecture with multiple-antenna access…

Information Theory · Computer Science 2024-10-28 Anastasios K. Papazafeiropoulos , Pandelis Kourtessis , Symeon Chatzinotas , John M. Senior

Integrated sensing and communication (ISAC) is a promising technology for future mobile networks, enabling sensing applications to be performed by existing communication networks, consequently improving the system efficiency. Millimeter…

Signal Processing · Electrical Eng. & Systems 2024-12-04 Weixian Yan , Ozan Alp Topal , Zinat Behdad , Ozlem Tugfe Demir , Cicek Cavdar