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In this paper, we consider the maximization of the secrecy rate in multiple unmanned aerial vehicles (UAV) rate-splitting multiple access (RSMA) network. A joint beamforming, rate allocation, and UAV trajectory optimization problem is…

密码学与安全 · 计算机科学 2024-02-20 Abuzar B. M. Adam , Mohammed A. M. Elhassan

Recently, Cloud-based Radio Access Network (C-RAN) has been proposed as a potential solution to reduce energy cost in cellular networks. C-RAN centralizes the baseband processing capabilities of Base Stations (BSs) in a cloud computing…

信息论 · 计算机科学 2016-08-25 Qiang Fan , Hancheng Lu , Wei Jiang , Peilin Hong , Jun Wu , Chang Wen Chen

The conventional digital beamforming technique needs one radio frequency (RF) chain per antenna element. High power consumption, significantly high cost of RF chain components per antenna and complex signal processing task at base band…

信号处理 · 电气工程与系统科学 2025-04-25 Om Nath Acharya , Ram Kaji Budhathoki , Santosh Shaha

As the dense deployment of access points (APs) in cell-free massive multiple-input multiple-output (CF-mMIMO) systems presents significant challenges, per-AP coverage can be expanded using large-scale antenna arrays (LAAs). However, this…

信号处理 · 电气工程与系统科学 2025-10-17 Eunhyuk Park , Seok-Hwan Park , Osvaldo Simeone , Marco Di Renzo , Shlomo Shamai

The convergence of communication and computation, along with the integration of machine learning and artificial intelligence, stand as key empowering pillars for the sixth-generation of communication systems (6G). This paper considers a…

信息论 · 计算机科学 2024-06-07 Robert-Jeron Reifert , Hayssam Dahrouj , Alaa Alameer Ahmad , Haris Gacanin , Aydin Sezgin

Enabling low precision implementations of deep learning models, without considerable performance degradation, is necessary in resource and latency constrained settings. Moreover, exploiting the differences in sensitivity to quantization…

机器学习 · 计算机科学 2022-10-28 Ignacio Hounie , Juan Elenter , Alejandro Ribeiro

Power saving is a main pillar in the operation of wireless communication systems. In this paper, we investigate cloud radio access network (C-RAN) capability to reduce power consumption based on the user equipment (UE) requirement. Aiming…

信息论 · 计算机科学 2024-05-24 Yuchao Chang , Hongli Wang , Wen Chen , Yonghui Li , Naofal Al-Dhahir

In this paper, we address the problem of power-efficient resource management in Cloud Radio Access Networks (C-RANs). Specifically, we consider the case where Remote Radio Heads (RRHs) perform data transmission, and signal processing is…

网络与互联网体系结构 · 计算机科学 2019-04-25 Salvatore D'Oro , Marcelo Antonio Marotta , Cristiano Bonato Both , Luiz DaSilva , Sergio Palazzo

Cellular-connected unmanned aerial vehicle (UAV) is a promising technology to unlock the full potential of UAVs in the future. However, how to achieve ubiquitous three-dimensional (3D) communication coverage for the UAVs in the sky is a new…

信号处理 · 电气工程与系统科学 2020-03-18 Yong Zeng , Xiaoli Xu , Shi Jin , Rui Zhang

Miniaturized autonomous unmanned aerial vehicles (UAVs) are gaining popularity due to their small size, enabling new tasks such as indoor navigation or people monitoring. Nonetheless, their size and simple electronics pose severe challenges…

The implementation of a Cloud Radio Access Network (C-RAN) with Full Dimensional (FD)-MIMO is faced with the challenge of controlling the fronthaul overhead for the transmission of baseband signals as the number of horizontal and vertical…

信息论 · 计算机科学 2016-11-15 Jinkyu Kang , Osvaldo Simeone , Joonhyuk Kang , Shlomo Shamai

Cloud-Radio Access Network (C-RAN) is a promising network architecture to reduce energy consumption and the increasing number of base station deployment costs in mobile networks. However, the necessity of enormous fronthaul bandwidth…

网络与互联网体系结构 · 计算机科学 2021-01-13 Turgay Pamuklu , Cicek Cavdar , Cem Ersoy

Cloud-Radio Access Network (C-RAN) is characterized by a hierarchical structure in which the baseband processing functionalities of remote radio heads (RRHs) are implemented by means of cloud computing at a Central Unit (CU). A key…

信息论 · 计算机科学 2017-02-01 Zoran Utkovski , Osvaldo Simeone , Tamara Dimitrova , Petar Popovski

This paper explores the application of uplink fronthaul compression techniques within Open RAN (O-RAN) to mitigate fronthaul load in decentralized distributed MIMO (DD-MIMO) systems. With the ever-increasing demand for high data rates and…

信号处理 · 电气工程与系统科学 2025-07-08 Mostafa Rahmani , Junbo Zhao , Vida Ranjbar , Ahmed Al-Tahmeesschi , Hamed Ahmadi , Sofie Pollin , Alister G. Burr

State-of-the-art performance for many edge applications is achieved by deep neural networks (DNNs). Often, these DNNs are location- and time-sensitive, and must be delivered over a wireless channel rapidly and efficiently. In this paper, we…

网络与互联网体系结构 · 计算机科学 2023-07-21 Mikolaj Jankowski , Deniz Gunduz , Krystian Mikolajczyk

Deep neural network (DNN) deployment has been confined to larger hardware devices due to their expensive computational requirements. This challenge has recently reached another scale with the emergence of large language models (LLMs). In…

机器学习 · 计算机科学 2023-08-11 Edouard Yvinec , Arnaud Dapogny , Kevin Bailly

Deep learning has recently emerged as a disruptive technology to solve challenging radio resource management problems in wireless networks. However, the neural network architectures adopted by existing works suffer from poor scalability,…

信息论 · 计算机科学 2020-10-30 Yifei Shen , Yuanming Shi , Jun Zhang , Khaled B. Letaief

The existence of multiple load-solution mappings of non-convex AC-OPF problems poses a fundamental challenge to deep neural network (DNN) schemes. As the training dataset may contain a mixture of data points corresponding to different…

机器学习 · 计算机科学 2022-06-08 Xiang Pan , Wanjun Huang , Minghua Chen , Steven H. Low

Automatic learning algorithms for improving the image quality of diagnostic B-mode ultrasound (US) images have been gaining popularity in the recent past. In this work, a novel convolutional neural network (CNN) is trained using time of…

信号处理 · 电气工程与系统科学 2021-08-18 Roshan P Mathews , Mahesh Raveendranatha Panicker

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