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In this paper, dynamic non-cooperative coexistence between a cognitive pulsed radar and a nearby communications system is addressed by applying nonlinear value function approximation via deep reinforcement learning (Deep RL) to develop a…

Signal Processing · Electrical Eng. & Systems 2020-08-28 Charles E. Thornton , Mark A. Kozy , R. Michael Buehrer , Anthony F. Martone , Kelly D. Sherbondy

Reinforcement learning (RL) algorithms find applications in inventory control, recommender systems, vehicular traffic management, cloud computing and robotics. The real-world complications of many tasks arising in these domains makes them…

Machine Learning · Computer Science 2021-06-03 Sindhu Padakandla

This paper studies the constrained/safe reinforcement learning (RL) problem with sparse indicator signals for constraint violations. We propose a model-based approach to enable RL agents to effectively explore the environment with unknown…

Artificial Intelligence · Computer Science 2021-03-09 Zuxin Liu , Hongyi Zhou , Baiming Chen , Sicheng Zhong , Martial Hebert , Ding Zhao

The extra degrees of freedom resulting from the consideration of Reconfigurable Intelligent Surfaces (RISs) for smart signal propagation can be exploited for high accuracy localization and tracking. In this paper, capitalizing on a recent…

Information Theory · Computer Science 2022-03-01 George C. Alexandropoulos , Ioanna Vinieratou , Henk Wymeersch

Reconfigurable Intelligent Surfaces (RISs) are announced as a truly transformative technology, capable of smartly shaping wireless environments to optimize next-generation communication networks. Among their numerous foreseen applications,…

Signal Processing · Electrical Eng. & Systems 2023-06-21 Moustafa Rahal , Benoit Denis , Taghrid Mazloum , Frederic Munoz , Raffaele D Errico

Global Navigation Satellite Systems (GNSS) provide global positioning and timing. Multiple receivers with known reference positions (stations) can assist mobile receivers (rovers) in obtaining GNSS corrections and achieve centimeter-level…

Cryptography and Security · Computer Science 2024-06-13 Marco Spanghero , Panos Papadimitratos

We present an approach for autonomous sensor control for information gathering under partially observable, dynamic and sparsely sampled environments that maximizes information about entities present in that space. We describe our approach…

Artificial Intelligence · Computer Science 2023-05-24 J. Brian Burns , Aravind Sundaresan , Pedro Sequeira , Vidyasagar Sadhu

It is a long-standing problem to find effective representations for training reinforcement learning (RL) agents. This paper demonstrates that learning state representations with supervision from Neural Radiance Fields (NeRFs) can improve…

Machine Learning · Computer Science 2022-06-06 Danny Driess , Ingmar Schubert , Pete Florence , Yunzhu Li , Marc Toussaint

Dynamic grasping of moving objects in complex, continuous motion scenarios remains challenging. Reinforcement Learning (RL) has been applied in various robotic manipulation tasks, benefiting from its closed-loop property. However, existing…

Robotics · Computer Science 2024-10-07 Pengwei Xie , Siang Chen , Qianrun Chen , Wei Tang , Dingchang Hu , Yixiang Dai , Rui Chen , Guijin Wang

Intelligent reflecting surface (IRS) has been widely studied in recent years, it has emerged as a new technology which can reflect the incident signal by intelligently configuring the reflection elements, thus changing the signal…

Information Theory · Computer Science 2024-05-07 Jintao Luo , Sixing Yin

Reinforcement Learning (RL), bolstered by the expressive capabilities of Deep Neural Networks (DNNs) for function approximation, has demonstrated considerable success in numerous applications. However, its practicality in addressing various…

Machine Learning · Computer Science 2024-04-26 Aditya Mohan , Amy Zhang , Marius Lindauer

In this paper, a proactive dynamic spectrum sharing scheme between 4G and 5G systems is proposed. In particular, a controller decides on the resource split between NR and LTE every subframe while accounting for future network states such as…

Networking and Internet Architecture · Computer Science 2021-02-23 Ursula Challita , David Sandberg

Irregular propagation environments with complex scattering effects challenge traditional ray-tracing-based localization. However, the environment's complexity enables solutions based on wave fingerprints (WFPs). Yet, since WFPs rely on the…

Applied Physics · Physics 2020-11-13 Philipp del Hougne

Mobile networks are composed of many base stations and for each of them many parameters must be optimized to provide good services. Automatically and dynamically optimizing all these entities is challenging as they are sensitive to…

Machine Learning · Computer Science 2021-10-01 Maxime Bouton , Hasan Farooq , Julien Forgeat , Shruti Bothe , Meral Shirazipour , Per Karlsson

This study delves into the classification of interference signals to global navigation satellite systems (GNSS) stemming from mobile jammers such as unmanned aerial vehicles (UAVs) across diverse wireless communication zones, employing…

Signal Processing · Electrical Eng. & Systems 2024-06-25 Min Jiang , Ziqiang Ye , Yue Xiao , Xiaogang Gou

Global Navigation Satellite Systems (GNSS) provide the backbone of Positioning, Navigation, and Timing (PNT) but remain vulnerable to interference. Low Earth Orbit (LEO) constellations within Fifth-Generation (5G) Non-Terrestrial Networks…

Signal Processing · Electrical Eng. & Systems 2025-10-21 Idir Edjekouane , Alejandro González Garrido , Jorge Querol , Symeon Chatzinotas

This paper considers the localization problem in a 5G-aided global navigation satellite system (GNSS) based on real-time kinematic (RTK) technique. Specifically, the user's position is estimated based on the hybrid measurements, including…

Signal Processing · Electrical Eng. & Systems 2023-03-24 Pinjun Zheng , Xing Liu , Tarig Ballal , Tareq Y. Al-Naffouri

Location-aware networks will introduce new services and applications for modern convenience, surveillance, and public safety. In this paper, we consider the problem of cooperative localization in a wireless network where the position of…

Systems and Control · Electrical Eng. & Systems 2023-01-02 Wenyu Zhang , Bryan Teague , Florian Meyer

Global Navigation Satellite Systems typically perform poorly in urban environments, where the likelihood of line-of-sight conditions between devices and satellites is low. Therefore, alternative location methods are required to achieve good…

Machine Learning · Computer Science 2023-04-11 Çağkan Yapar , Ron Levie , Gitta Kutyniok , Giuseppe Caire

High-precision localization and environmental sensing are essential for a new wave of applications, ranging from industrial automation and autonomous systems to augmented reality and remote healthcare. Conventional wireless methods,…