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The great potentials of massive Multiple-Input Multiple-Output (MIMO) in Frequency Division Duplex (FDD) mode can be fully exploited when the downlink Channel State Information (CSI) is available at base stations. However, the accurate CSI…

信息论 · 计算机科学 2024-10-30 Jiajia Guo , Tong Chen , Shi Jin , Geoffrey Ye Li , Xin Wang , Xiaolin Hou

Federated learning is a privacy-preserving approach to train a global model at a central server by collaborating with wireless devices, each with its own local training data set. In this paper, we present a compressive sensing approach for…

信号处理 · 电气工程与系统科学 2020-08-06 Yo-Seb Jeon , Mohammad Mohammadi Amiri , Jun Li , H. Vincent Poor

Following the trends of index modulated (IM) techniques for optical communications, in the last few years several new waveform proposals have been made, aiming at conveying a higher density of information by driving different signal…

信号处理 · 电气工程与系统科学 2020-04-07 Francisco J. Escribano , Alexandre Wagemakers

Aerial operation in turbulent environments is a challenging problem due to the chaotic behavior of the flow. This problem is made even more complex when a team of aerial robots is trying to achieve coordinated motion in turbulent wind…

机器人学 · 计算机科学 2023-06-09 Diego Patiño , Siddharth Mayya , Juan Calderon , Kostas Daniilidis , David Saldaña

In the field of autonomous Unmanned Aerial Vehicles (UAVs) landing, conventional approaches fall short in delivering not only the required precision but also the resilience against environmental disturbances. Yet, learning-based algorithms…

计算机视觉与模式识别 · 计算机科学 2024-05-22 Francisco Neves , Luís Branco , Maria Pereira , Rafael Claro , Andry Pinto

In broadband millimeter-wave (mm-Wave) systems, it is desirable to design hybrid beamformers with common analog beamformer for the entire band while employing different baseband beamformers in different frequency sub-bands. Furthermore, the…

信号处理 · 电气工程与系统科学 2019-11-01 Ahmet M. Elbir , Kumar Vijay Mishra

Metasurfaces is an emerging field that enables the manipulation of light by an ultra-thin structure composed of sub-wavelength antennae and fulfills an important requirement for miniaturized optical elements. Finding a new design for a…

光学 · 物理学 2020-10-06 Abhishek Mall , Abhijeet Patil , Dipesh Tamboli , Amit Sethi , Anshuman Kumar

In this paper, we develop a deep learning (DL)-guided hybrid beam and power allocation approach for multiuser millimeter-wave (mmWave) networks, which facilitates swift beamforming at the base station (BS). The following persisting…

信号处理 · 电气工程与系统科学 2023-05-24 Yuwen Cao , Tomoaki Ohtsuki , Setareh Maghsudi , Tony Q. S. Quek

In this work, a hybrid free-space optics (FSO)/ teraHertz (THz) based backhaul network is considered to provide high-data rate reliable communication to the terrestrial mobile users (MUs) operating at millimeter wave (mmWave) bands. The FSO…

信号处理 · 电气工程与系统科学 2022-11-14 Praveen Kumar Singya , Behrooz Makki , Antonio D'Errico , Mohamed-Slim Alouini

In mobile communication system, due to the limitations of mobile device such as low power supply as well as small size, most of the processing should be done at the Base Station. Using multi-receive structure at the Base Station really…

信号处理 · 电气工程与系统科学 2019-05-01 Mohammad Ali Amirabadi

Federated learning (FL) is recognized as a key enabling technology to support distributed artificial intelligence (AI) services in future 6G. By supporting decentralized data training and collaborative model training among devices, FL…

信号处理 · 电气工程与系统科学 2021-11-02 Shaoming Huang , Pengfei Zhang , Yijie Mao , Lixiang Lian , Yuanming Shi

Exploiting channel sparsity at millimeter wave (mmWave) frequencies reduces the high training overhead associated with the channel estimation stage. Compressive sensing (CS) channel estimation techniques usually adopt the (overcomplete)…

信息论 · 计算机科学 2019-09-23 Hongxiang Xie , Javier Rodríguez-Fernández , Nuria González-Prelcic

Estimation in few-bit MIMO systems is challenging, since the received signals are nonlinearly distorted by the low-resolution ADCs. In this paper, we propose a deep learning framework for channel estimation, data detection, and pilot signal…

信号处理 · 电气工程与系统科学 2021-07-27 Ly V. Nguyen , Duy H. N. Nguyen , A. Lee Swindlehurst

Machine Learning has proven useful in the recent years as a way to achieve failure prediction for industrial systems. However, the high computational resources necessary to run learning algorithms are an obstacle to its widespread…

人工智能 · 计算机科学 2020-01-22 Nicolas Aussel , Sophie Chabridon , Yohan Petetin

Deep Learning (DL) is penetrating into a diverse range of mass mobility, smart living, and industrial applications, rapidly transforming the way we live and work. DL is at the heart of many AI implementations. A key set of challenges is to…

网络与互联网体系结构 · 计算机科学 2023-11-27 Weisi Guo , Schyler Sun , Bin Li , Sam Blakeman

Millimeter wave communications are essential for modern wireless networks. It supports high data rates but suffers from severe path loss, which requires precise beam alignment to maintain reliable links. This beam management is particularly…

信号处理 · 电气工程与系统科学 2025-11-05 Ailton Oliveira , Amir Khatibi , Daniel Suzuki , Ilan Correa , José Rezende , Aldebaro Klautau

Multi-input multi-output orthogonal frequency division multiplexing (MIMO OFDM) is a key technology for mobile communication systems. However, due to the issue of high peak-to-average power ratio (PAPR), the OFDM symbols may suffer from…

信号处理 · 电气工程与系统科学 2021-06-01 Liangyuan Xu , Feifei Gao , Wei Zhang , Shaodan Ma

Existing communication systems exhibit inherent limitations in translating theory to practice when handling the complexity of optimization for emerging wireless applications with high degrees of freedom. Deep learning has a strong potential…

网络与互联网体系结构 · 计算机科学 2020-05-14 Tugba Erpek , Timothy J. O'Shea , Yalin E. Sagduyu , Yi Shi , T. Charles Clancy

With the rapid growth in the volume of data sets, models, and devices in the domain of deep learning, there is increasing attention on large-scale distributed deep learning. In contrast to traditional distributed deep learning, the…

分布式、并行与集群计算 · 计算机科学 2024-04-10 Feng Liang , Zhen Zhang , Haifeng Lu , Victor C. M. Leung , Yanyi Guo , Xiping Hu

Atmospheric turbulence is the main barrier to large-scale free-space quantum communication networks. Aberrations distort optical information carriers, thus limiting or preventing the possibility of establishing a secure link between two…