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The rapid development of machine learning (ML) and artificial intelligence (AI) applications requires the training of large numbers of models. This growing demand highlights the importance of training models without human supervision, while…

Machine Learning · Computer Science 2025-05-26 Alexey Boldyrev , Fedor Ratnikov , Andrey Shevelev

Millimeter wave (mmWave) and terahertz MIMO systems rely on pre-defined beamforming codebooks for both initial access and data transmission. Being pre-defined, however, these codebooks are commonly not optimized for specific environments,…

Information Theory · Computer Science 2021-02-24 Yu Zhang , Muhammad Alrabeiah , Ahmed Alkhateeb

Self-supervision has demonstrated to be an effective learning strategy when training target tasks on small annotated data-sets. While current research focuses on creating novel pretext tasks to learn meaningful and reusable representations…

Computer Vision and Pattern Recognition · Computer Science 2021-05-17 Fernando Navarro , Christopher Watanabe , Suprosanna Shit , Anjany Sekuboyina , Jan C. Peeken , Stephanie E. Combs , Bjoern H. Menze

Deep learning based deformable registration methods have become popular in recent years. However, their ability to generalize beyond training data distribution can be poor, significantly hindering their usability. LUMIR brain registration…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Joel Honkamaa , Pekka Marttinen

Directional beamforming is a crucial component for realizing robust wireless communication systems using millimeter wave (mmWave) technology. Beam alignment using brute-force search of the space introduces time overhead while location aided…

Signal Processing · Electrical Eng. & Systems 2021-02-23 Vishnu Raj , Nancy Nayak , Sheetal Kalyani

Highly directional millimeter wave (mmWave) radios need to perform beam management to establish and maintain reliable links. To do so, existing solutions mostly rely on explicit coordination between the transmitter (TX) and the receiver…

Networking and Internet Architecture · Computer Science 2021-06-09 Michele Polese , Francesco Restuccia , Tommaso Melodia

In ultrasound (US) imaging, individual channel RF measurements are back-propagated and accumulated to form an image after applying specific delays. While this time reversal is usually implemented using a hardware- or software-based…

Image and Video Processing · Electrical Eng. & Systems 2019-07-17 Shujaat Khan , Jaeyoung Huh , Jong Chul Ye

As a promising technology in beyond-5G (B5G) and 6G, dual-function radar-communication (DFRC) aims to ensure both radar sensing and communication on a single integrated platform with unified signaling schemes. To achieve accurate sensing…

Signal Processing · Electrical Eng. & Systems 2024-03-05 Ziyang Cheng , Linlong Wu , Bowen Wang , Bhavani Shankar , Bin Liao , Björn Ottersten

Unmanned Aerial Vehicles (UAVs) are being used for wireless communications in smart environments. However, the need for mobility, scalability of data transmission over wide areas, and the required coverage area make UAV beamforming…

Signal Processing · Electrical Eng. & Systems 2023-07-17 Abdu Saif , Nor Shahida Mohd Shah , Soreen Ameen Fattah , Saeed Hamood Alsamhi , Santosh Kumar , Ali Saad Al khuraib

The pervasive nature of wireless telecommunication has made it the foundation for mainstream technologies like automation, smart vehicles, virtual reality, and unmanned aerial vehicles. As these technologies experience widespread adoption…

Information Theory · Computer Science 2023-07-21 Jaspreet Kaur , Satyam Bhatti , Olaoluwa R Popoola , Muhammad Ali Imran , Rami Ghannam , Qammer H Abbasi , Hasan T Abbas

The decadal research in integrated true-time-delay arrays have seen organic growth enabling realization of wideband beamformers for large arrays with wide aperture widths. This article introduces highly reconfigurable delay elements…

Deep Learning has revolutionized machine learning and artificial intelligence, achieving superhuman performance in several standard benchmarks. It is well-known that deep learning models are inefficient to train; they learn by processing…

Machine Learning · Computer Science 2021-12-03 Fartash Faghri

Communicating on millimeter wave (mmWave) bands is ushering in a new epoch of mobile communication which provides the availability of 10 Gbps high data rate transmission. However, mmWave links are easily prone to short transmission range…

Signal Processing · Electrical Eng. & Systems 2022-05-31 Yi Wang , Zhiqing Wei , Zhiyong Feng

This letter considers the transceiver design in frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems for high-quality data transmission. We propose a novel…

Signal Processing · Electrical Eng. & Systems 2023-12-12 Junyi Yang , Weifeng Zhu , Shu Sun , Xiaofeng Li , Xingqin Lin , Meixia Tao

In this letter, we study the robust beamforming problem for the multi-antenna wireless broadcasting system with simultaneous information and power transmission, under the assumption of imperfect channel state information (CSI) at the…

Information Theory · Computer Science 2012-10-23 Zhengzheng Xiang , Meixia Tao

Millimeter-wave (mm-wave) is a promising technique to enhance the network capacity and coverage of next-generation (5G) based on utilizing a great number of available spectrum resources in mobile communication. Improving the 5G network…

Speech enhancement is a fundamental challenge in signal processing, particularly when robustness is required across diverse acoustic conditions and microphone setups. Deep learning methods have been successful for speech enhancement, but…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-28 Yuval Bar Ilan , Boaz Rafaely , Vladimir Tourbabin

This work focuses on learning useful and robust deep world models using multiple, possibly unreliable, sensors. We find that current methods do not sufficiently encourage a shared representation between modalities; this can cause poor…

Machine Learning · Computer Science 2021-07-07 Kaiqi Chen , Yong Lee , Harold Soh

To accommodate the explosive wireless traffics, massive multiple-input multiple-output (MIMO) is regarded as one of the key enabling technologies for next-generation communication systems. In massive MIMO cellular networks, coordinated…

Information Theory · Computer Science 2023-03-27 Jungang Ge , Ying-Chang Liang , Liao Zhang , Ruizhe Long , Sumei Sun

Hybrid Massive MIMO reduces implementation complexity but only supports beamforming coefficients that are common across all subbands. However, in macro cellular where the channel has limited degrees of freedom, the long-term component of…

Signal Processing · Electrical Eng. & Systems 2018-11-27 Chris Ng , Mihai Banu