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A comprehensive study on the applications of denoising diffusion models for wireless systems is provided. The article highlights the capabilities of diffusion models in learning complicated signal distributions, modeling wireless channels,…

Information Theory · Computer Science 2025-12-10 Mehdi Letafati , Samad Ali , Matti Latva-aho

Nowadays, most mobile devices are equipped with multiple wireless interfaces, causing an emerging research interest in device to device (D2D) communication: the idea behind the D2D paradigm is to exploit the proper interface to directly…

Networking and Internet Architecture · Computer Science 2016-05-16 Davide Del Desta , Matteo Danieletto , Giorgio Maria Di Nunzio , Michele Zorzi

Dynamic mode (DM) decomposition decomposes spatiotemporal signals into basic oscillatory components (DMs). DMs can improve the accuracy of neural decoding when used with the nonlinear Grassmann kernel, compared to conventional power…

Signal Processing · Electrical Eng. & Systems 2023-11-09 Ryohei Fukuma , Kei Majima , Yoshinobu Kawahara , Okito Yamashita , Yoshiyuki Shiraishi , Haruhiko Kishima , Takufumi Yanagisawa

Wireless power transfer (WPT) has been an active topic of research, with a number of WPT schemes implemented in the near-field (coupling) and far-field (radiation) regimes. Here, we consider a beamed WPT scheme based on a dynamically…

Diffusion models (DM) can gradually learn to remove noise, which have been widely used in artificial intelligence generated content (AIGC) in recent years. The property of DM for eliminating noise leads us to wonder whether DM can be…

Information Theory · Computer Science 2023-09-19 Tong Wu , Zhiyong Chen , Dazhi He , Liang Qian , Yin Xu , Meixia Tao , Wenjun Zhang

Traditional communication system design has always been based on the paradigm of first establishing a mathematical model of the communication channel, then designing and optimizing the system according to the model. The advent of modern…

Information Theory · Computer Science 2022-10-07 Wei Yu , Foad Sohrabi , Tao Jiang

In this paper, we introduce the concept of spot beamfocusing (SBF) in the Fresnel zone through extremely large-scale programmable metasurfaces (ELPMs) as a key enabling technology for 6G networks. A smart SBF scheme aims to adaptively…

Systems and Control · Electrical Eng. & Systems 2024-09-16 Mehdi Monemi , Mohammad Amir Fallah , Mehdi Rasti , Matti Latva-Aho

In simulations, particles are traditionally treated as rigid platforms with variable sizes, shapes and interaction parameters. While this representation is applicable for rigid core platforms, particles consisting of soft platforms (e.g.…

Soft Condensed Matter · Physics 2024-08-06 Massimiliano Paesani , Ioana M. Ilie

This paper introduces Progressively Diffused Networks (PDNs) for unifying multi-scale context modeling with deep feature learning, by taking semantic image segmentation as an exemplar application. Prior neural networks, such as ResNet, tend…

Computer Vision and Pattern Recognition · Computer Science 2017-02-21 Ruimao Zhang , Wei Yang , Zhanglin Peng , Xiaogang Wang , Liang Lin

The evolution of programmable metasurfaces (PM) from passive beamforming to active information transmission marks a paradigm shift for next-generation wireless systems. However, this transition is hindered by fundamental limitations in…

Information Theory · Computer Science 2025-11-18 Xuehui Dong , Miyu Feng , Chen Shao , Bokai Lai , Jianan Zhang , Rujing Xiong , Kai Wan , Tiebin Mi , Robert Caiming Qiu

Metasurfaces, with their ability to control electromagnetic waves, hold immense potential in optical device design, especially for applications requiring precise control over dispersion. This work introduces an approach to dispersion…

Dynamic metasurface antennas (DMAs) are an emerging technology for next-generation wireless base stations, distinguished by hybrid analog/digital beamforming capabilities with low hardware complexity. However, the intrinsic coupling between…

Applied Physics · Physics 2025-07-11 Hugo Prod'homme , Philipp del Hougne

Metasurfaces are subwavelength-structured artificial media that can shape and localize electromagnetic waves in unique ways. The inverse design of these devices is a non-convex optimization problem in a high dimensional space, making global…

Computational Physics · Physics 2019-11-22 Jiaqi Jiang , Jonathan A. Fan

Metasurfaces can manipulate the amplitude and phase of electromagnetic waves, offering applications ranging from antenna design and cloaking to imaging and communication. Additionally, temporal, and non-linear metasurfaces have the…

Signal Processing · Electrical Eng. & Systems 2024-11-18 Pouria Sanjari , Firooz Aflatouni

Recent advancement in digital coding metasurfaces incorporating spatial and temporal modulation has enabled simultaneous control of electromagnetic (EM) waves in both space and frequency domains by manipulating incident EM waves in a…

Applied Physics · Physics 2023-05-08 Shaghayegh Vosoughitabar , Chung-Tse Michael Wu

Metasurfaces are sub-wavelength patterned layers for controlling waves in physical systems. In optics, meta-surfaces are created by materials with different dielectric constants and are capable of unconventional functionalities. We develop…

Computational Physics · Physics 2024-08-21 Chen-Di Han , Li-Li Ye , Zin Lin , Vassilios Kovanis , Ying-Cheng Lai

Machine learning deployments in real-world wireless communication tasks face significant generalization challenges due to location and environment-specific signal structure, high diversity in data across different deployments, and limited…

Signal Processing · Electrical Eng. & Systems 2026-05-26 Sadjad Alikhani , Akshay Malhotra , Shahab Hamidi-Rad , Ahmed Alkhateeb

In this paper, conditional denoising diffusion probabilistic models (DDPMs) are proposed to enhance the data transmission and reconstruction over wireless channels. The underlying mechanism of DDPM is to decompose the data generation…

Information Theory · Computer Science 2024-11-21 Mehdi Letafati , Samad Ali , Matti Latva-aho

Semantic communications (SemCom) is a promising paradigm that prioritizes the transmission of task-relevant information, thereby enabling superior communication efficiency over traditional bit-centric systems. However, most existing SemCom…

Information Theory · Computer Science 2026-04-28 Jinbao Li , Jiancheng An , Hao Liu , Lu Gan , Victor C. M. Leung , Mehdi Bennis , Mérouane Debbah

The sixth-generation (6G) wireless networks are expected to deliver ubiquitous connectivity, resilient coverage, and intelligence-driven services in highly dynamic environments. To achieve these goals, distributed wireless architectures…

Information Theory · Computer Science 2025-10-24 Enyu Shi , Jiayi Zhang , Zhilong Liu , Ziheng Liu , Arumugam Nallanathan , Merouane Debbah , Shi Jin , Bo Ai