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Radio surveys are widely used to study active galactic nuclei. Radio interferometric observations typically trade-off surface brightness sensitivity for angular resolution. Hence, observations using a wide range of baseline lengths are…

星系天体物理 · 物理学 2019-06-11 Nina Glaser , O Ivy Wong , Kevin Schawinski , Ce Zhang

Recently, Low Earth Orbit (LEO) satellite networks (i.e., non-terrestrial network (NTN)), such as Starlink, have been successfully deployed to provide broader coverage than terrestrial networks (TN). Due to limited spectrum resources, TN…

网络与互联网体系结构 · 计算机科学 2025-01-07 Haoxuan Yuan , Zhe Chen , Zheng Lin , Jinbo Peng , Yuhang Zhong , Xuanjie Hu , Songyan Xue , Wei Li , Yue Gao

Machine learning (ML) facilitates rapid channel modeling for 5G and beyond wireless communication systems. Many existing ML techniques utilize a city map to construct the radio map; however, an updated city map may not always be available.…

信号处理 · 电气工程与系统科学 2024-03-04 Wangqian Chen , Junting Chen

The Massive Multiple-Input Multiple-Output (M-MIMO) is considered as one of the key technologies in 5G, and future 6G networks. From the perspective of, e.g., channel estimation, especially for high-speed users it is easier to implement an…

网络与互联网体系结构 · 计算机科学 2023-10-25 Marcin Hoffmann , Pawel Kryszkiewicz

In this paper, a novel experienced deep reinforcement learning (deep-RL) framework is proposed to provide model-free resource allocation for ultra reliable low latency communication (URLLC). The proposed, experienced deep-RL framework can…

信息论 · 计算机科学 2020-10-15 Ali Taleb Zadeh Kasgari , Walid Saad , Mohammad Mozaffari , H. Vincent Poor

Low-altitude wireless networks (LAWN) are rapidly expanding with the growing deployment of unmanned aerial vehicles (UAVs) for logistics, surveillance, and emergency response. Reliable connectivity remains a critical yet challenging task…

机器学习 · 计算机科学 2026-01-06 Nguyen Duc Minh Quang , Chang Liu , Huy-Trung Nguyen , Shuangyang Li , Derrick Wing Kwan Ng , Wei Xiang

Spectrum coexistence is essential for next generation (NextG) systems to share the spectrum with incumbent (primary) users and meet the growing demand for bandwidth. One example is the 3.5 GHz Citizens Broadband Radio Service (CBRS) band,…

网络与互联网体系结构 · 计算机科学 2022-12-29 Yi Shi , Yalin E. Sagduyu

Integrated sensing and communication (ISAC) technology has been explored as a potential advancement for future wireless networks, striving to effectively use spectral resources for both communication and sensing. The integration of…

信号处理 · 电气工程与系统科学 2025-02-25 Alice Faisal , Ibrahim Al-Nahhal , Kyesan Lee , Octavia A. Dobre , Hyundong Shin

Spectrogram classification plays an important role in analyzing gravitational wave data. In this paper, we propose a framework to improve the classification performance by using Generative Adversarial Networks (GANs). As substantial efforts…

高能天体物理现象 · 物理学 2022-08-03 Jianqi Yan , Alex P. Leung , David C. Y. Hui

We present a new method to create spatial data using a generative adversarial network (GAN). Our contribution uses coarse and widely available geospatial data to create maps of less available features at the finer scale in the built…

计算机视觉与模式识别 · 计算机科学 2022-02-22 Abraham Noah Wu , Filip Biljecki

Generative Adversarial Networks (GANs) are a recent advancement in unsupervised machine learning. They are a cat-and-mouse game between two neural networks: [1] a discriminator network which learns to validate whether a sample is real or…

宇宙学与河外天体物理 · 物理学 2020-06-23 Olivia Curtis , Tereasa G. Brainerd

One of the most significant challenges in statistical signal processing and machine learning is how to obtain a generative model that can produce samples of large-scale data distribution, such as images and speeches. Generative Adversarial…

计算机视觉与模式识别 · 计算机科学 2020-05-28 Pegah Salehi , Abdolah Chalechale , Maryam Taghizadeh

Integrated sensing and communication (ISAC) uses the same software and hardware resources to achieve both communication and sensing functionalities. Thus, it stands as one of the core technologies of 6G and has garnered significant…

信号处理 · 电气工程与系统科学 2025-02-19 Jiacheng Wang , Changyuan Zhao , Hongyang Du , Geng Sun , Jiawen Kang , Shiwen Mao , Dusit Niyato , Dong In Kim

Radio Environmental Maps (REMs) are a powerful tool for enhancing the performance of various communication and networked agents. However, generating REMs is a laborious undertaking, especially in complex 3-Dimensional (3D) environments,…

网络与互联网体系结构 · 计算机科学 2021-11-08 Ken Mendes , Filip Lemic , Jeroen Famaey

This paper presents a deep learning-based approach for the spatio-temporal reconstruction of sound fields using Generative Adversarial Networks (GANs). The method utilises a plane wave basis and learns the underlying statistical…

音频与语音处理 · 电气工程与系统科学 2023-08-02 Xenofon Karakonstantis , Efren Fernandez-Grande

This paper describes a general, scalable, end-to-end framework that uses the generative adversarial network (GAN) objective to enable robust speech recognition. Encoders trained with the proposed approach enjoy improved invariance by…

计算与语言 · 计算机科学 2017-11-07 Anuroop Sriram , Heewoo Jun , Yashesh Gaur , Sanjeev Satheesh

The Radio Environment Map (REM) provides an effective approach to Dynamic Spectrum Access (DSA) in Cognitive Radio Networks (CRNs). Previous results on REM construction show that there exists a tradeoff between the number of measurements…

网络与互联网体系结构 · 计算机科学 2016-11-18 Zhiqing Wei , Qixun Zhang , Zhiyong Feng , Wei Li , T. Aaron Gulliver

Radio Map Prediction (RMP), aiming at estimating coverage of radio wave, has been widely recognized as an enabling technology for improving radio spectrum efficiency. However, fast and reliable radio map prediction can be very challenging…

信号处理 · 电气工程与系统科学 2021-05-18 Yu Tian , Shuai Yuan , Weisheng Chen , Naijin Liu

In wireless networks, radio-frequency (RF) maps are critical for tasks such as capacity planning, coverage estimation, and localization. Traditional approaches for obtaining RF maps, including site surveys and ray-tracing simulations, are…

网络与互联网体系结构 · 计算机科学 2026-03-17 Sopan Sarkar , Marwan Krunz

Several studies have explored deep learning algorithms to predict large-scale signal fading, or path loss, in urban communication networks. The goal is to replace costly measurement campaigns, inaccurate statistical models, or…

信号处理 · 电气工程与系统科学 2025-06-24 Fabian Jaensch , Giuseppe Caire , Begüm Demir