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This paper proposes a novel and simple orthogonal faster than Nyquist (OFTN) data transmission and detection approach for a single input multiple output (SIMO) system. It is assumed that the signal having a bandwidth $B$ is transmitted…

信息论 · 计算机科学 2017-07-25 Tadilo Endeshaw Bogale , Long Bao Le , Xianbin Wang , Luc Vandendorpe

This paper addresses channel estimation and data equalization on frequency-selective 1-bit quantized Multiple Input-Multiple Output (MIMO) systems. No joint processing or Channel State Information is assumed at the transmitter, and…

信息论 · 计算机科学 2021-03-09 Javier García , Jawad Munir , Kilian Roth , Josef A. Nossek

This study describes a UWB and Machine Learning (ML)-based indoor positioning system. We propose a simple mathematical strategy to create data to reduce the job of measurements for fingerprint-based indoor localization systems. A…

信号处理 · 电气工程与系统科学 2022-04-11 Anqi Yin , Zihuai Lin

Accurate channel state information (CSI) acquisition for massive multiple-input multiple-output (MIMO) systems is essential for future mobile communication networks. Channel fingerprint (CF), also referred to as channel knowledge map, is a…

网络与互联网体系结构 · 计算机科学 2026-01-12 Zhenzhou Jin , Li You , Xudong Li , Zhen Gao , Yuanwei Liu , Xiang-Gen Xia , Xiqi Gao

Visible light communications (VLC) have recently attracted a growing interest and can be a potential solution to realize indoor wireless communication with high bandwidth capacity for RF-restricted environments such as airplanes and…

信息论 · 计算机科学 2016-11-18 Bilal A. Ranjha , Mohammadreza A. Kashani , Mohsen Kavehrad , Peng Deng

Precise indoor localization is an increasingly demanding requirement for various emerging applications, like Virtual/Augmented reality and personalized advertising. Current indoor environments are equipped with pluralities of WiFi access…

信号处理 · 电气工程与系统科学 2019-11-21 Chenlu Xiang , Shunqing Zhang , Shugong Xu , Xiaojing Chen , George C. Alexandropoulos , Vincent K. N. Lau

Only the chairs can edit The availability of abundant bandwidth at terahertz (THz) frequencies holds promise for significantly enhancing the sensing performance of integrated sensing and communication (ISAC) systems in the next-generation…

信号处理 · 电气工程与系统科学 2024-05-29 Tommaso Bacchielli , Lorenzo Pucci , Davide Dardari , Andrea Giorgetti

This article introduces an energy and spectral efficient multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) transmission scheme designed for the future sixth generation (6G) wireless communication…

信号处理 · 电气工程与系统科学 2024-04-10 Sen Wang , Tianxiong Wang , Shulun Zhao , Zhen Feng , Guangyi Liu , Chunfeng Cui , Chih-Lin I , Jiangzhou Wang

This paper provides an initial investigation on the application of convolutional neural networks (CNNs) for fingerprint-based positioning using measured massive MIMO channels. When represented in appropriate domains, massive MIMO channels…

机器学习 · 统计学 2017-08-22 Joao Vieira , Erik Leitinger , Muris Sarajlic , Xuhong Li , Fredrik Tufvesson

Fine classification of city-scale buildings from satellite remote sensing imagery is a crucial research area with significant implications for urban planning, infrastructure development, and population distribution analysis. However, the…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Zhiyi He , Wei Yao , Jie Shao , Puzuo Wang

We propose a novel doubly-dispersive (DD) multiple-input multiple-output (MIMO) channel model incorporating flexible intelligent metasurfaces (FIMs), which is suitable for integrated sensing and communications (ISAC) in high-mobility…

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…

Widespread adoption of indoor positioning systems based on WiFi fingerprinting is at present hindered by the large efforts required for measurements collection during the offline phase. Two approaches were recently proposed to address such…

网络与互联网体系结构 · 计算机科学 2019-04-03 Giuseppe Caso , Luca De Nardis , Filip Lemic , Vlado Handziski , Adam Wolisz , Maria-Gabriella Di Benedetto

A variety of wireless channel estimation methods, e.g., MUSIC and ESPRIT, rely on prior knowledge of the model order. Therefore, it is important to correctly estimate the number of multipath components (MPCs) which compose such channels.…

信号处理 · 电气工程与系统科学 2021-06-23 Brenda Vilas Boas , Wolfgang Zirwas , Martin Haardt

Cell-free massive multiple-input multiple-output (mMIMO) networks enhance coverage and spectral efficiency (SE) by distributing antennas across access points (APs) with phase coherence between APs. However, the use of cost-efficient local…

信号处理 · 电气工程与系统科学 2025-06-26 Yibo Wu , Luca Sanguinetti , Musa Furkan Keskin , Ulf Gustavsson , Alexandre Graell i Amat , Henk Wymeersch

This paper studies a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) networked integrated sensing and communication (ISAC) system, in which multiple base stations (BSs) perform beam tracking to…

网络与互联网体系结构 · 计算机科学 2025-08-19 Xiaoyu Yang , Zhiqing Wei , Jie Xu , Huici Wu , Zhiyong Feng

Integrated sensing and communication (ISAC) is one of the key usage scenarios for future sixth-generation (6G) mobile communication networks, where communication and sensing (C&S) services are simultaneously provided through shared wireless…

In this paper, we study how to efficiently and reliably detect active devices and estimate their channels in a multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) based grant-free non-orthogonal multiple…

信息论 · 计算机科学 2022-11-14 Wenjun Jiang , Mingyang Yue , Xiaojun Yuan , Yong Zuo

Orthogonal frequency division multiplexing (OFDM) is a widely adopted wireless communication technique but is sensitive to the carrier frequency offset (CFO). For high-mobility environments, severe Doppler shifts cause the CFO to extend…

信号处理 · 电气工程与系统科学 2023-12-29 Wei Huang , Jun Wang , Xiaoping Li , Qihang Peng

This paper addresses joint target acquisition and position estimation in an OFDM-based integrated sensing and communication (ISAC) network with base station (BS) cooperation via a fusion center. A two-stage framework is proposed: in the…

信号处理 · 电气工程与系统科学 2025-07-10 Lorenzo Pucci , Andrea Giorgetti