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The first step of a secure communication is authenticating legible users and detecting the malicious ones. In the last recent years, some promising schemes proposed using wireless medium network's features, in particular, channel state…

网络与互联网体系结构 · 计算机科学 2018-12-18 Amirhossein Yazdani Abyaneh , Ali Hosein Gharari Foumani , Vahid Pourahmadi

The objective of this paper is to address the localization problem using omnidirectional images captured by a catadioptric vision system mounted on the robot. For this purpose, we explore the potential of Siamese Neural Networks for…

计算机视觉与模式识别 · 计算机科学 2024-07-16 J. J. Cabrera , V. Román , A. Gil , O. Reinoso , L. Payá

In many practical applications, deep neural networks have been typically deployed to operate as a black box predictor. Despite the high amount of work on interpretability and high demand on the reliability of these systems, they typically…

人工智能 · 计算机科学 2020-12-07 Martin Stano , Wanda Benesova , Lukas Samuel Martak

Cell-free massive MIMO (CF-mMIMO) has emerged as a promising paradigm for delivering uniformly high-quality coverage in future wireless networks. To address the inherent challenges of precoding in such distributed systems, recent studies…

信号处理 · 电气工程与系统科学 2025-08-05 Tianzheng Miao , Thomas Feys , Gilles Callebaut , Jarne Van Mulders , Emanuele Peschiera , Md Arifur Rahman , François Rottenberg

This paper investigates narrowband coordinated user scheduling in multi-cell massive multiple-input multiple-output (MIMO) systems. We formulate the problem under a spectral-efficiency maximization criterion, revealing inherent challenges…

信号处理 · 电气工程与系统科学 2026-03-24 Jiayang Wan , Hongwei Hou , Jiawei Zhuang , Wenjin Wang , Shi Jin

Noncoherent communication is a promising paradigm for future wireless systems where acquiring accurate channel state information (CSI) is challenging or infeasible. It provides methods to bypass the need for explicit channel estimation in…

In this paper, we perform a coverage analysis of a cellular massive multiple-input multiple-output (MaMIMO) network which adopts 3D beamforming. In contrast to the previous works on 3D beamforming which assume that all users are placed on…

信息论 · 计算机科学 2017-09-14 M. Baianifar , S. Khavari , S. M. Razavizadeh , T. Svensson

Convolutional Neural Networks (CNNs) have been successfully applied for relative camera pose estimation from labeled image-pair data, without requiring any hand-engineered features, camera intrinsic parameters or depth information. The…

机器人学 · 计算机科学 2021-03-29 Prem Raj , Vinay P. Namboodiri , L. Behera

We study the massive multiple-input multiple-output (MIMO) multicast transmission in cellular networks where each base station (BS) is equipped with a large-scale antenna array and transmits a common message using a single beamformer to…

信息论 · 计算机科学 2016-11-15 Zhengzheng Xiang , Meixia Tao , Xiaodong Wang

In massive multiple-input multiple-output (MIMO) system, channel state information (CSI) is essential for the base station to achieve high performance gain. Recently, deep learning is widely used in CSI compression to fight against the…

信息论 · 计算机科学 2020-11-06 Zhilin Lu , Jintao Wang , Jian Song

We propose channel charting (CC), a novel framework in which a multi-antenna network element learns a chart of the radio geometry in its surrounding area. The channel chart captures the local spatial geometry of the area so that points that…

信息论 · 计算机科学 2018-08-23 Christoph Studer , Saïd Medjkouh , Emre Gönültaş , Tom Goldstein , Olav Tirkkonen

Massive multiple-input multiple-output (MIMO) systems deploying a large number of antennas at the base station considerably increase the spectrum efficiency by serving multiple users simultaneously without causing severe interference.…

信息论 · 计算机科学 2019-02-19 Yu Han , Qi Liu , Chao-Kai Wen , Shi Jin , Kai-Kit Wong

Massive multiple-input multiple-output (MIMO) is a promising technology to increase link capacity and energy efficiency. However, these benefits are based on available channel state information (CSI) at the base station (BS). Therefore,…

信号处理 · 电气工程与系统科学 2024-10-30 Jiajia Guo , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

Channel covariance matrix (CCM) is one critical parameter for designing the communications systems. In this paper, a novel framework of the deep learning (DL) based CCM estimation is proposed that exploits the perception of the transmission…

信号处理 · 电气工程与系统科学 2023-04-19 Weihua Xu , Feifei Gao , Jianhua Zhang , Xiaoming Tao , Ahmed Alkhateeb

The utilization of millimeter-wave (mmWave) bands in 5G networks poses new challenges to network planning. Vulnerability to blockages at mmWave bands can cause coverage holes (CHs) in the radio environment, leading to radio link failure…

机器学习 · 计算机科学 2021-08-24 Chethan K. Anjinappa , Ismail Guvenc

Distributed multiple-input multiple-output (D-MIMO) is a promising technology for simultaneous communication and positioning. However, phase synchronization between multiple access points in D-MIMO is challenging and methods that function…

Deep Neural Networks have often been called the black box because of the complex, deep architecture and non-transparency presented by the inner layers. There is a lack of trust to use Artificial Intelligence in critical and high-precision…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Frincy Clement , Ji Yang , Irene Cheng

This paper proposes a new image-based localization framework that explicitly localizes the camera/robot by fusing Convolutional Neural Network (CNN) and sequential images' geometric constraints. The camera is localized using a single or few…

计算机视觉与模式识别 · 计算机科学 2022-01-06 Jingwei Song , Mitesh Patel , Maani Ghaffari

Can we map the channels at one set of antennas and one frequency band to the channels at another set of antennas---possibly at a different location and a different frequency band? If this channel-to-channel mapping is possible, we can…

信息论 · 计算机科学 2019-08-15 Muhammad Alrabeiah , Ahmed Alkhateeb

Large-scale multiple-input multiple-output (MIMO) with high spectrum and energy efficiency is a very promising key technology for future 5G wireless communications. For large-scale MIMO systems, accurate channel state information (CSI)…

信息论 · 计算机科学 2015-11-30 Zhen Gao , Linglong Dai , Zhaocheng Wang