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Statistical channel models are instrumental to design and evaluate wireless communication systems. In the millimeter wave bands, such models become acutely challenging; they must capture the delay, directions, and path gains, for each link…

Signal Processing · Electrical Eng. & Systems 2020-12-18 William Xia , Sundeep Rangan , Marco Mezzavilla , Angel Lozano , Giovanni Geraci , Vasilii Semkin , Giuseppe Loianno

Link prediction (LP) is an important problem in network science and machine learning research. The state-of-the-art LP methods are usually evaluated in a uniform setup, ignoring several factors associated with the data and application…

Social and Information Networks · Computer Science 2025-07-21 Bhargavi Kalyani , A Rama Prasad Mathi , Niladri Sett

Transfer learning with pre-trained neural networks is a common strategy for training classifiers in medical image analysis. Without proper channel selections, this often results in unnecessarily large models that hinder deployment and…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Ken C. L. Wong , Satyananda Kashyap , Mehdi Moradi

While 3D medical shape generative models such as diffusion models have shown promise in synthesizing diverse and anatomically plausible structures, the absence of ground truth makes quality evaluation challenging. Existing evaluation…

Deep metric learning (DML) is a popular approach for images retrieval, solving verification (same or not) problems and addressing open set classification. Arguably, the most common DML approach is with triplet loss, despite significant…

Machine Learning · Computer Science 2019-12-02 Istvan Fehervari , Avinash Ravichandran , Srikar Appalaraju

Device mobility in dense Wi-Fi networks offers several challenges. Two well-known problems related to device mobility are handover prediction and access point selection. Due to the complex nature of the radio environment, analytical models…

Networking and Internet Architecture · Computer Science 2022-05-31 Muhammad Asif Khan , Ridha Hamila , Adel Gastli , Serkan Kiranyaz , Nasser Ahmed Al-Emadi

Site-specific channel inference plays a critical role in the design and evaluation of next-generation wireless communication systems by considering the surrounding propagation environment. However, traditional methods are unscalable.…

Image and Video Processing · Electrical Eng. & Systems 2026-04-14 Junzhe Song , Ruisi He , Mi Yang , Zhengyu Zhang , Shuaiqi Gao , Bo Ai , Zhangdui Zhong

Positioning benefits from channel models that capture geometric effects and, in particular, from the signal properties of the first arriving path and the spatial consistency of the propagation condition of multiple links. The models that…

Channel models that represent various operating conditions a communication system might experience are important for design and standardization of any communication system. While statistical channel models have long dominated this space,…

Signal Processing · Electrical Eng. & Systems 2025-04-14 Md-Ferdous Pervej , Patel Pratik , Koushik Manjunatha , Prasad Shamain , Andreas F. Molisch

Currently, machine learning (ML) methods are widely used to process the results of physical experiments. In some cases, due to the limited amount of experimental data, ML-models can be pre-trained on synthetic data simulated based on the…

Computational Physics · Physics 2022-09-22 Y. R. Rodimkov , V. D. Volokitin , I. B. Meyerov , E. S. Efimenko

With the exponential growth of smart devices connected to wireless networks, data production is increasing rapidly, requiring machine learning (ML) techniques to unlock its value. However, the centralized ML paradigm raises concerns over…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-15 Xiangwang Hou , Jingjing Wang , Jun Du , Chunxiao Jiang , Yong Ren , Dusit Niyato

Learning the site-specific distribution of the wireless channel within a particular environment of interest is essential to exploit the full potential of machine learning (ML) for wireless communications and radar applications. Generative…

Signal Processing · Electrical Eng. & Systems 2025-08-12 Benedikt Böck , Andreas Oeldemann , Timo Mayer , Francesco Rossetto , Wolfgang Utschick

Traditional approaches in the analysis of downlink systems decouple the precoding and the channel estimation problems. However, in cellular systems with mobile users, these two problems are in fact tightly coupled. In this paper, this…

Information Theory · Computer Science 2016-11-18 Jubin Jose , Alexei Ashikhmin , Phil Whiting , Sriram Vishwanath

Deep Metric Learning (DML) is arguably one of the most influential lines of research for learning visual similarities with many proposed approaches every year. Although the field benefits from the rapid progress, the divergence in training…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Karsten Roth , Timo Milbich , Samarth Sinha , Prateek Gupta , Björn Ommer , Joseph Paul Cohen

Modern 5G/6G deployments routinely face cross-configuration handovers--users traversing cells with different antenna layouts, carrier frequencies, and scattering statistics--which inflate channel-prediction NMSE by $37.5\%$ on average when…

Signal Processing · Electrical Eng. & Systems 2025-07-01 Muhammad Ahmed Mohsin , Muhammad Umer , Ahsan Bilal , Muhammad Ali Jamshed , John M. Cioffi

Most research studies on deep learning (DL) applied to the physical layer of wireless communication do not put forward the critical role of the accuracy-generalization trade-off in developing and evaluating practical algorithms. To…

Information Theory · Computer Science 2023-07-17 Mohamed Akrout , Amine Mezghani , Ekram Hossain , Faouzi Bellili , Robert W. Heath

There is a growing interest in the wireless communications community to complement the traditional model-based design approaches with data-driven machine learning (ML)-based solutions. While conventional ML approaches rely on the assumption…

Signal Processing · Electrical Eng. & Systems 2020-05-05 Solmaz Niknam , Harpreet S. Dhillon , Jeffery H. Reed

Ensuring a reliable communication in wireless networks strictly depends on the effective estimation of the link quality, which is particularly challenging when propagation environment for radio signals significantly varies. In such…

Networking and Internet Architecture · Computer Science 2021-04-19 Gregor Cerar , Halil Yetgin , Mihael Mohorčič , Carolina Fortuna

Accurate prediction of mmWave time-varying channels is essential for mitigating the issue of channel aging in complex scenarios owing to high user mobility. Existing channel prediction methods have limitations: classical model-based methods…

Signal Processing · Electrical Eng. & Systems 2024-11-19 Yiyong Sun , Jiajun He , Zhidi Lin , Wenqiang Pu , Feng Yin , Hing Cheung So

Despite continual learning's long and well-established academic history, its application in real-world scenarios remains rather limited. This paper contends that this gap is attributable to a misalignment between the actual challenges of…

Machine Learning · Computer Science 2024-02-16 Theodora Kontogianni , Yuanwen Yue , Siyu Tang , Konrad Schindler