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Position-aided beam selection methods have been shown to be an effective approach to achieve high beamforming gain while limiting the overhead and latency of initial access in millimeter wave (mmWave) communications. Most research in the…

Signal Processing · Electrical Eng. & Systems 2021-10-14 Sajad Rezaie , Elisabeth de Carvalho , Carles Navarro Manchón

Recent breakthroughs in Go play and strategic games have witnessed the great potential of reinforcement learning in intelligently scheduling in uncertain environment, but some bottlenecks are also encountered when we generalize this…

Machine Learning · Computer Science 2018-12-27 Xingxing Liang , Qi Wang , Yanghe Feng , Zhong Liu , Jincai Huang

Finding tight bounds on the optimal solution is a critical element of practical solution methods for discrete optimization problems. In the last decade, decision diagrams (DDs) have brought a new perspective on obtaining upper and lower…

Artificial Intelligence · Computer Science 2019-02-28 Quentin Cappart , Emmanuel Goutierre , David Bergman , Louis-Martin Rousseau

Sound sources localization using multichannel signal processing has been a subject of active research for decades. In recent years, the use of deep learning in audio signal processing has allowed to drastically improve performances for…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-16 Hadrien Pujol , Éric Bavu , Alexandre Garcia

Multi-channel speech enhancement with ad-hoc sensors has been a challenging task. Speech model guided beamforming algorithms are able to recover natural sounding speech, but the speech models tend to be oversimplified or the inference would…

Computation and Language · Computer Science 2018-02-16 Kaizhi Qian , Yang Zhang , Shiyu Chang , Xuesong Yang , Dinei Florencio , Mark Hasegawa-Johnson

Most deep learning-based multi-channel speech enhancement methods focus on designing a set of beamforming coefficients to directly filter the low signal-to-noise ratio signals received by microphones, which hinders the performance of these…

Sound · Computer Science 2022-02-08 Wenzhe Liu , Andong Li , Chengshi Zheng , Xiaodong Li

Millimeter-wave (mmWave) and terahertz (THz) communications require beamforming to acquire adequate receive signal-to-noise ratio (SNR). To find the optimal beam, current beam management solutions perform beam training over a large number…

Signal Processing · Electrical Eng. & Systems 2021-11-30 Shuaifeng Jiang , Ahmed Alkhateeb

We explore the use of deep learning and deep reinforcement learning for optimization problems in transportation. Many transportation system analysis tasks are formulated as an optimization problem - such as optimal control problems in…

Machine Learning · Statistics 2018-06-15 Laura Schultz , Vadim Sokolov

Beamforming is a key technology in millimeter-wave (mmWave) communications that improves signal transmission by optimizing directionality and intensity. However, conventional channel estimation methods, such as pilot signals or beam…

Networking and Internet Architecture · Computer Science 2025-12-02 Yu Min Park , Yan Kyaw Tun , Eui-Nam Huh , Walid Saad , Choong Seon Hong

Multicast beamforming is a promising technique for multicast communication. Providing an efficient and powerful beamforming design algorithm is a crucial issue because multicast beamforming problems such as a max-min-fair problem are…

Information Theory · Computer Science 2020-04-21 Satoshi Takabe , Tadashi Wadayama

Estimation of physical quantities is at the core of most scientific research and the use of quantum devices promises to enhance its performances. In real scenarios, it is fundamental to consider that the resources are limited and Bayesian…

Employing large antenna arrays is a key characteristic of millimeter wave (mmWave) and terahertz communication systems. However, due to the adoption of fully analog or hybrid analog/digital architectures, as well as non-ideal hardware or…

Signal Processing · Electrical Eng. & Systems 2021-02-19 Yu Zhang , Muhammad Alrabeiah , Ahmed Alkhateeb

This paper investigates the problem of providing ultra-reliable and energy-efficient virtual reality (VR) experiences for wireless mobile users. To ensure reliable ultra-high-definition (UHD) video frame delivery to mobile users and enhance…

Networking and Internet Architecture · Computer Science 2021-07-09 Peng Yang , Tony Q. S. Quek , Jingxuan Chen , Chaoqun You , Xianbin Cao

With the rapidly growing expansion in the use of UAVs, the ability to autonomously navigate in varying environments and weather conditions remains a highly desirable but as-of-yet unsolved challenge. In this work, we use Deep Reinforcement…

Computer Vision and Pattern Recognition · Computer Science 2019-12-13 Bruna G. Maciel-Pearson , Letizia Marchegiani , Samet Akcay , Amir Atapour-Abarghouei , James Garforth , Toby P. Breckon

This paper presents an innovative framework for remote sensing image analysis by fusing deep learning techniques, specifically Convolutional Neural Networks (CNNs) and Long Short-Term Memory (LSTM) networks, with Geographic Information…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Sajjad Afroosheh , Mohammadreza Askari

Q-learning is widely used to optimize wireless networks with unknown system dynamics. Recent advancements include ensemble multi-environment hybrid Q-learning algorithms, which utilize multiple Q-learning algorithms across structurally…

Signal Processing · Electrical Eng. & Systems 2024-09-02 Talha Bozkus , Urbashi Mitra

In this paper, we propose a low-complexity and fast hybrid beamforming design for joint communications and sensing (JCAS) based on deep unfolding. We first derive closed-form expressions for the gradients of the communications sum rate and…

Signal Processing · Electrical Eng. & Systems 2024-11-28 Nhan Thanh Nguyen , Ly V. Nguyen , Nir Shlezinger , Yonina C. Eldar , A. Lee Swindlehurst , Markku Juntti

This paper presents a novel and sustainable approach for improving beam selection in 5G and beyond networks using transfer learning and Reinforcement Learning (RL). Traditional RL-based beam selection models require extensive training time…

Machine Learning · Computer Science 2025-11-18 Dariush Salami , Ramin Hashemi , Parham Kazemi , Mikko A. Uusitalo

This paper investigates reinforcement learning with constraints, which are indispensable in safety-critical environments. To drive the constraint violation monotonically decrease, we take the constraints as Lyapunov functions and impose new…

Machine Learning · Computer Science 2021-05-07 Chuangchuang Sun , Dong-Ki Kim , Jonathan P. How

In industrial environments, an increasing amount of wireless devices are used, which utilize license-free bands. As a consequence of these mutual interferences of wireless systems might decrease the state of coexistence. Therefore, a…

Signal Processing · Electrical Eng. & Systems 2018-06-14 Philip Soeffker , Dimitri Block , Nico Wiebusch , Uwe Meier