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The exponential growth of wireless devices and stringent reliability requirements of emerging applications demand fundamental improvements in distributed channel access mechanisms for unlicensed bands. Current Wi-Fi systems, which rely on…

人工智能 · 计算机科学 2025-09-30 Jinzhe Pan , Jingqing Wang , Yuehui Ouyang , Wenchi Cheng , Wei Zhang

This study considers a UAV-assisted multi-user massive multiple-input multiple-output (MU-mMIMO) systems, where a decode-and-forward (DF) relay in the form of an unmanned aerial vehicle (UAV) facilitates the transmission of multiple data…

信息论 · 计算机科学 2023-09-22 Mobeen Mahmood , MohammadMahdi Ghadaksaz , Asil Koc , Tho Le-Ngoc

Recent advances in neural neighborhood search methods have shown potential in tackling Vehicle Routing Problems (VRPs). However, most existing approaches rely on simplistic state representations and fuse heterogeneous information via naive…

人工智能 · 计算机科学 2025-12-04 Xiangling Chen , Yi Mei , Mengjie Zhang

This paper considers a mmWave cell-free massive MIMO (multiple-input multiple-output) network composed of a large number of geographically distributed access points (APs) simultaneously serving multiple user equipments (UEs) via coherent…

信号处理 · 电气工程与系统科学 2023-11-03 Mahmoud Zaher , Emil Björnson , Marina Petrova

This paper proposes a deep learning based power allocation (DL-PA) and hybrid precoding technique for multiuser massive multiple-input multiple-output (MU-mMIMO) systems. We first utilize an angular-based hybrid precoding technique for…

信息论 · 计算机科学 2022-02-01 Asil Koc , Mike Wang , Tho Le-Ngoc

Cell-free massive multiple-input multiple-output (CFmMIMO) coordinates a great number of distributed access points (APs) with central processing units (CPUs), effectively reducing interference and ensuring uniform service quality for user…

信号处理 · 电气工程与系统科学 2024-12-23 Phu Lai , Wei Xiang , William Damario Lukito , Khoa Tran Phan , Peng Cheng , Chang Liu , Guoqiang Mao

Cell-free massive multiple-input multiple-output (MIMO) employs a large number of distributed access points (APs) to serve a small number of user equipments (UEs) via the same time/frequency resource. Due to the strong macro diversity gain,…

信息论 · 计算机科学 2021-11-23 Jiayi Zhang , Jing Zhang , Derrick Wing Kwan Ng , Shi Jin , Bo Ai

Massive MIMO systems, where base stations are equipped with hundreds of antennas, are an attractive way to handle the rapid growth of data traffic. As the number of user equipments (UEs) increases, the initial access and handover in…

信号处理 · 电气工程与系统科学 2018-06-20 Luca Sanguinetti , Antonio A. D'Amico , Michele Morelli , Merouane Debbah

Training task in classical machine learning models, such as deep neural networks, is generally implemented at a remote cloud center for centralized learning, which is typically time-consuming and resource-hungry. It also incurs serious…

机器学习 · 计算机科学 2020-10-27 Jinke Ren , Guanding Yu , Guangyao Ding

This paper proposes the use of an access point (AP) selection scheme to improve the total uplink (UL) spectral efficiency (SE) of a radio stripe (RS) network. This scheme optimizes the allocation matrix between the total number of APs'…

信号处理 · 电气工程与系统科学 2024-12-11 Filipe Conceição , Marco Gomes , Vitor Silva , Rui Dinis

We propose MRU (Multi-Range Reasoning Units), a new fast compositional encoder for machine comprehension (MC). Our proposed MRU encoders are characterized by multi-ranged gating, executing a series of parameterized contract-and-expand…

计算与语言 · 计算机科学 2018-03-28 Yi Tay , Luu Anh Tuan , Siu Cheung Hui

This report presents the winning solution for Task 2 of Colliding with Adversaries: A Challenge on Robust Learning in High Energy Physics Discovery at ECML-PKDD 2025. The goal of the challenge was to design and train a robust ANN-based…

机器学习 · 计算机科学 2025-12-11 Dimitris Stefanopoulos , Andreas Voskou

Limited capacity of fronthaul links in a cell-free massive multiple-input multiple-output (MIMO) system can cause quantization errors at a central processing unit (CPU) during data transmission, complicating the centralized rate…

信号处理 · 电气工程与系统科学 2024-03-29 Minje Kim , In-soo Kim , Junil Choi

This paper proposes a dynamic access point (AP) selection and pilot power allocation (DAPPA) framework for uplink cell-free massive multiple-input multiple-output (CFmMIMO) systems, aiming to mitigate inter-user interference and improve…

信号处理 · 电气工程与系统科学 2026-02-24 Saeed Mohammadzadeh , Rodrigo C. De Lamare , Kanapathippillai Cumanan , Hien Quoc Ngo

Cell-free massive multiple-input multiple-output (CF mMIMO) systems serve the user equipments (UEs) by geographically distributed access points (APs) by means of joint transmission and reception. To limit the power consumption due to…

信号处理 · 电气工程与系统科学 2023-04-25 Shuaifei Chen , Jiayi Zhang , Emil Björnson , Özlem Tuğfe Demir , Bo Ai

The challenges to solving the collision avoidance problem lie in adaptively choosing optimal robot velocities in complex scenarios full of interactive obstacles. In this paper, we propose a distributed approach for multi-robot navigation…

机器人学 · 计算机科学 2022-03-22 Ruihua Han , Shengduo Chen , Shuaijun Wang , Zeqing Zhang , Rui Gao , Qi Hao , Jia Pan

The aggregated unfitted finite element method (AgFEM) is a methodology recently introduced in order to address conditioning and stability problems associated with embedded, unfitted, or extended finite element methods. The method is based…

数值分析 · 计算机科学 2019-08-20 Francesc Verdugo , Alberto F. Martín , Santiago Badia

Machine learning with deep neural networks (DNNs) has become one of the foundation techniques in many safety-critical systems, such as autonomous vehicles and medical diagnosis systems. DNN-based systems, however, are known to be vulnerable…

密码学与安全 · 计算机科学 2022-01-25 Yijun Yang , Ruiyuan Gao , Yu Li , Qiuxia Lai , Qiang Xu

This paper designs a helper-assisted resource allocation strategy in non-orthogonal multiple access (NOMA)-enabled mobile edge computing (MEC) systems, in order to guarantee the quality of service (QoS) of the energy/delay-sensitive user…

信息论 · 计算机科学 2023-01-26 Mengmeng Ren , Long Yang , Hai Jiang , Jian Chen , Yuchen Zhou

Emerging communication networks are envisioned to support massive wireless connectivity of heterogeneous devices with sporadic traffic and diverse requirements in terms of latency, reliability, and bandwidth. Providing multiple access to an…

信息论 · 计算机科学 2023-04-19 Sajad Daei , Marios Kountouris