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The evolution of fifth generation (5G) wireless communication networks has led to an increased need for wireless resource management solutions that provide higher data rates, wide coverage, low latency, and power efficiency. Yet, many of…

Information Theory · Computer Science 2024-06-13 Cemil Vahapoglu , Timothy J. O'Shea , Tamoghna Roy , Sennur Ulukus

This paper tackles post-hoc interpretability for audio processing networks. Our goal is to interpret decisions of a network in terms of high-level audio objects that are also listenable for the end-user. To this end, we propose a novel…

Recently, stunning improvements on multi-channel speech separation have been achieved by neural beamformers when direction information is available. However, most of them neglect to utilize speaker's 2-dimensional (2D) location cues…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-05 Yanjie Fu , Meng Ge , Honglong Wang , Nan Li , Haoran Yin , Longbiao Wang , Gaoyan Zhang , Jianwu Dang , Chengyun Deng , Fei Wang

We introduce a new beam search decoder that is fully differentiable, making it possible to optimize at training time through the inference procedure. Our decoder allows us to combine models which operate at different granularities (e.g.…

Computation and Language · Computer Science 2019-02-19 Ronan Collobert , Awni Hannun , Gabriel Synnaeve

We introduce a U-net model for 360{\deg} acoustic source localization formulated as a spherical semantic segmentation task. Rather than regressing discrete direction-of-arrival (DoA) angles, our model segments beamformed audio maps (azimuth…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-30 Belman Jahir Rodriguez , Sergio F. Chevtchenko , Marcelo Herrera Martinez , Yeshwanth Bethi , Saeed Afshar

Joint communications and sensing (JCAS) is expected to be a crucial technology for future wireless systems. This paper investigates beamforming design for a multi-user multi-target JCAS system to ensure fairness and balance between…

Signal Processing · Electrical Eng. & Systems 2024-11-27 Mengyuan Ma , Tianyu Fang , Nir Shlezinger , A. L. Swindlehurst , Markku Juntti , Nhan Nguyen

This paper presents the concept, design, channel modeling, beamforming algorithm development, prototype fabrication, and experimental measurement of an electromagnetically reconfigurable fluid antenna system (ER-FAS), in which each FAS…

Signal Processing · Electrical Eng. & Systems 2025-10-17 Ruiqi Wang , Pinjun Zheng , Vijith Varma Kotte , Sakandar Rauf , Yiming Yang , Muhammad Mahboob Ur Rahman , Tareq Y. Al-Naffouri , Atif Shamim

In this study, energy-efficient deterministic adaptive beamforming algorithms are proposed for distributed sensor/relay networks. Specifically, DBSA, D-QESA, D-QESA-E, and a hybrid algorithm, hybrid-QESA, that combines the benefits of both…

Information Theory · Computer Science 2015-09-10 Chun-Wei Li , Kuo-Ming Chen , Po-Chun Fu , Wei-Ning Chen , Che Lin

While models in audio and speech processing are becoming deeper and more end-to-end, they as a consequence need expensive training on large data, and are often brittle. We build on a classical model of human hearing and make it…

Sound · Computer Science 2024-09-16 Ruolan Leslie Famularo , Dmitry N. Zotkin , Shihab A. Shamma , Ramani Duraiswami

The deconvolutional DAMAS algorithm can effectively eliminate the misconceptions in the usually-used beamforming localization algorithm, allowing for more accurate calculation of the source location as well as the intensity. When solving a…

Sound · Computer Science 2023-07-06 Weicheng Xue , Bing Yang , Shaohong Jia

Using RF signals for wireless sensing has gained increasing attention. However, due to the unwanted multi-path fading in uncontrollable radio environments, the accuracy of RF sensing is limited. Instead of passively adapting to the…

Signal Processing · Electrical Eng. & Systems 2020-11-26 Jingzhi Hu , Hongliang Zhang , Kaigui Bian , Marco Di Renzo , Zhu Han , Lingyang Song

From ancient to modern times, acoustic structures have been used to control the propagation of acoustic waves. However, the design of the acoustic structures has remained widely a time-consuming and computational resource-consuming…

Sound · Computer Science 2024-11-12 Xuecong Sun , Han Jia , Yuzhen Yang , Han Zhao , Yafeng Bi , Zhaoyong Sun , Jun Yang

The massive number of antennas in extremely large aperture array (ELAA) systems shifts the propagation regime of signals in internet of things (IoT) communication systems towards near-field spherical wave propagation. We propose a…

Signal Processing · Electrical Eng. & Systems 2025-04-18 Quan Zhou , Jingjing Zhao , Kaiquan Cai , Yanbo Zhu

In this paper, we investigate an intelligent reflecting surface (IRS) assisted multi-user multiple-input multiple-output (MIMO) full-duplex (FD) system. We jointly optimize the active beamforming matrices at the access point (AP) and uplink…

Signal Processing · Electrical Eng. & Systems 2021-12-07 Yanzhen Liu , Qiyu Hu , Yunlong Cai , Guanding Yu , Geoffrey Ye Li

Modern IEEE 802.11 (Wi-Fi) networks extensively rely on multiple-input multiple-output (MIMO) to significantly improve throughput. To correctly beamform MIMO transmissions, the access point needs to frequently acquire a beamforming matrix…

Networking and Internet Architecture · Computer Science 2023-10-16 Niloofar Bahadori , Yoshitomo Matsubara , Marco Levorato , Francesco Restuccia

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…

Signal Processing · Electrical Eng. & Systems 2023-08-07 Jingxin Zhang , Jiawei Xi , Peixing Li , Ray C. C. Cheung , Alex M. H. Wong , Jensen Li

This paper studies fast adaptive beamforming optimization for the signal-to-interference-plus-noise ratio balancing problem in a multiuser multiple-input single-output downlink system. Existing deep learning based approaches to predict…

Information Theory · Computer Science 2020-11-03 Yi Yuan , Gan Zheng , Kai-Kit Wong , Björn Ottersten , Zhi-Quan Luo

In this paper, we present a novel end-to-end network architecture to estimate fundamental matrix directly from stereo images. To establish a complete working pipeline, different deep neural networks in charge of finding correspondences in…

Computer Vision and Pattern Recognition · Computer Science 2020-10-30 Yesheng Zhang , Xu Zhao , Dahong Qian

Deep learning based on artificial neural networks is a powerful machine learning method that, in the last few years, has been successfully used to realize tasks, e.g., image classification, speech recognition, translation of languages,…

Information Theory · Computer Science 2019-06-18 Alessio Zappone , Marco Di Renzo , Mérouane Debbah , Thanh Tu Lam , Xuewen Qian

Recent research in the design of end to end communication system using deep learning has produced models which can outperform traditional communication schemes. Most of these architectures leveraged autoencoders to design the encoder at the…

Information Theory · Computer Science 2020-01-28 Vishnu Raj , Sheetal Kalyani
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