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Reconfigurable intelligent surface (RIS) is capable of intelligently manipulating the phases of the incident electromagnetic wave to improve the wireless propagation environment between the base-station (BS) and the users. This paper…

信号处理 · 电气工程与系统科学 2022-09-14 Zhongze Zhang , Tao Jiang , Wei Yu

In this paper, deep neural network (DNN) is utilized to improve the belief propagation (BP) detection for massive multiple-input multiple-output (MIMO) systems. A neural network architecture suitable for detection task is firstly introduced…

信号处理 · 电气工程与系统科学 2018-04-06 Xiaosi Tan , Weihong Xu , Yair Be'ery , Zaichen Zhang , Xiaohu You , Chuan Zhang

Massive multiple-input multiple-output (MIMO) communication systems have a huge potential both in terms of data rate and energy efficiency, although channel estimation becomes challenging for a large number of antennas. Using a physical…

信号处理 · 电气工程与系统科学 2021-12-10 Taha Yassine , Luc Le Magoarou

Graph Neural Networks (GNNs) have emerged as a powerful and flexible framework for representation learning on irregular data. As they generalize the operations of classical CNNs on grids to arbitrary topologies, GNNs also bring much of the…

机器学习 · 计算机科学 2021-03-31 Mehdi Bahri , Gaétan Bahl , Stefanos Zafeiriou

The main challenges in designing downlink coordinated multicast beamforming in massive multiple-input multiple output (MIMO) cellular networks are the complex computational solutions and significant fronthaul overhead for centralized…

信号处理 · 电气工程与系统科学 2025-02-20 Shiqi Yin , Min Dong

Deep Neural Networks (DNN) have achieved state-of-the-art results in a wide range of tasks, with the best results obtained with large training sets and large models. In the past, GPUs enabled these breakthroughs because of their greater…

机器学习 · 计算机科学 2016-04-19 Matthieu Courbariaux , Yoshua Bengio , Jean-Pierre David

Reconfigurable intelligent surface (RIS) has become a promising technology to improve wireless communication in recent years. It steers the incident signals to create a favorable propagation environment by controlling the reconfigurable…

信息论 · 计算机科学 2021-11-15 Wangyang Xu , Lu Gan , Chongwen Huang

Beamforming design is critical for the efficient operation of integrated sensing and communication (ISAC) MIMO systems. ISAC beamforming design in cell-free massive MIMO systems, compared to colocated MIMO systems, is more challenging due…

信息论 · 计算机科学 2024-09-30 Umut Demirhan , Ahmed Alkhateeb

This paper introduces a unified deep neural network (DNN)-based precoder for two-user multiple-input multiple-output (MIMO) networks with five objectives: data transmission, energy harvesting, simultaneous wireless information and power…

机器学习 · 计算机科学 2020-07-07 Xinliang Zhang , Mojtaba Vaezi

Machine learning algorithms have recently been considered for many tasks in the field of wireless communications. Previously, we have proposed the use of a deep fully convolutional neural network (CNN) for receiver processing and shown it…

信号处理 · 电气工程与系统科学 2022-07-13 Janne M. J. Huttunen , Dani Korpi , Mikko Honkala

The pinching-antenna system is a novel flexible-antenna technology, which has the capabilities not only to combat large-scale path loss, but also to reconfigure the antenna array in a flexible manner. The key idea of pinching antennas is to…

信号处理 · 电气工程与系统科学 2025-02-11 Xinke Xie , Yang Lu , Zhiguo Ding

Deep learning, as a highly efficient method for metasurface inverse design, commonly use simulation data to train deep neural networks (DNNs) that can map desired functionalities to proper metasurface designs. However, the assumptions and…

信号处理 · 电气工程与系统科学 2023-08-07 Jingxin Zhang , Jiawei Xi , Peixing Li , Ray C. C. Cheung , Alex M. H. Wong , Jensen Li

We study a full-duplex (FD) cell-free massive MIMO system where distributed access points (APs) operate in FD mode while user equipments (UEs) remain half-duplex. Although simultaneous uplink (UL) and downlink (DL) transmissions improve…

信号处理 · 电气工程与系统科学 2026-05-11 Bikshapathi Gouda , Antti Tölli

This paper investigates an extremely large-scale reconfigurable intelligent surface (XL-RIS) assisted near-field integrated sensing and communication (ISAC) system, where a multi-antenna base station (BS) simultaneously sends unicast data…

信息论 · 计算机科学 2026-03-03 Jiahao Chen , Feng Wang , Guojun Han , Xin Wang , Vincent K. N. Lau

Matching, a task to optimally assign limited resources under constraints, is a fundamental technology for society. The task potentially has various objectives, conditions, and constraints; however, the efficient neural network architecture…

机器学习 · 计算机科学 2023-10-20 Shusaku Sone , Jiaxin Ma , Atsushi Hashimoto , Naoya Chiba , Yoshitaka Ushiku

In a cell-free wireless network, distributed access points (APs) jointly serve all user equipments (UEs) within the their coverage area by using the same time/frequency resources. In this paper, we develop a novel downlink cell-free…

信息论 · 计算机科学 2021-03-23 Yasser Al-Eryani , Ekram Hossain

Deep neural network (DNN) generally takes thousands of iterations to optimize via gradient descent and thus has a slow convergence. In addition, softmax, as a decision layer, may ignore the distribution information of the data during…

机器学习 · 计算机科学 2021-06-16 Rui Zhang , Ziheng Jiao , Hongyuan Zhang , Xuelong Li

This paper proposes a deep neural network (DNN) codebook approach for multi-user interference (MUI) mitigation in extremely large multiple-input multiple-output (XL-MIMO) systems operating in the near-field region. Unlike existing DNN-based…

信号处理 · 电气工程与系统科学 2025-09-29 Mohammadhossein Karimi , Yuanzhe Gong , Tho Le-Ngoc

Finite element simulations of large-deformation sheet material forming involve node-element coupling between nodal kinematics and element-level deformation measures. Machine-learning surrogates can accelerate such simulations, but most…

计算工程、金融与科学 · 计算机科学 2026-05-25 Yingxue Zhao , Haoran Li , Haosu Zhou , Tobias Pfaff , Nan Li

To improve the efficiency of scarce radio-frequency (RF) resources in next-generation wireless systems, an intelligent transceiver architecture based on stacked intelligent metasurfaces (SIM) has recently emerged, where multiple…

信息论 · 计算机科学 2026-05-11 Muhammad Ibrahim , Amine Mezghani , Ekram Hossain