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The idea of end-to-end learning of communication systems through neural network-based autoencoders has the shortcoming that it requires a differentiable channel model. We present in this paper a novel learning algorithm which alleviates…

Information Theory · Computer Science 2019-07-02 Fayçal Ait Aoudia , Jakob Hoydis

Although digital twins have recently emerged as a clear alternative for reliable asset representations, most of the solutions and tools available for the development of digital twins are tailored to specific environments. Furthermore,…

Software Engineering · Computer Science 2023-01-16 Julia Robles , Cristian Martín , Manuel Díaz

This paper focuses on advancing outdoor wireless systems to better support ubiquitous extended reality (XR) applications, and close the gap with current indoor wireless transmission capabilities. We propose a hybrid knowledge-data driven…

Signal Processing · Electrical Eng. & Systems 2023-07-24 Zhen Gao , Shicong Liu , Yu Su , Zhongxiang Li , Dezhi Zheng

As a virtual, synchronized replica of physical network, the digital twin network (DTN) is envisioned to sense, predict, optimize and manage the intricate wireless technologies and architectures brought by 6G. Given that the properties of…

Signal Processing · Electrical Eng. & Systems 2025-02-21 Li Yu , Yinghe Miao , Jianhua Zhang , Shaoyi Liu , Yuxiang Zhang , Guangyi Liu

The emerging technology of Reconfigurable Intelligent Surfaces (RISs) is provisioned as an enabler of smart wireless environments, offering a highly scalable, low-cost, hardware-efficient, and almost energy-neutral solution for dynamic…

Information Theory · Computer Science 2022-05-11 George C. Alexandropoulos , Kyriakos Stylianopoulos , Chongwen Huang , Chau Yuen , Mehdi Bennis , Mérouane Debbah

Radio-frequency (RF) enabled wireless energy transfer (WET), as a promising solution to provide cost-effective and reliable power supplies for energy-constrained wireless networks, has drawn growing interests recently. To overcome the…

Information Theory · Computer Science 2014-12-19 Yong Zeng , Rui Zhang

Central to the digital transformation of the process industry are Digital Twins (DTs), virtual replicas of physical manufacturing systems that combine sensor data with sophisticated data-based or physics-based models, or a combination…

Machine Learning · Computer Science 2024-07-03 Michael Mayr , Georgios C. Chasparis , Josef Küng

Wireless digital twins (WDTs) enable site-specific learning, management, and evaluation in wireless networks. However, constructing and maintaining a high-fidelity WDT over large-scale complex environments can be prohibitively expensive,…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Zihao Zhou , Zhaolin Wang , Yuanwei Liu

The next-generation of wireless networks will enable many machine learning (ML) tools and applications to efficiently analyze various types of data collected by edge devices for inference, autonomy, and decision making purposes. However,…

Machine Learning · Computer Science 2021-04-07 Mingzhe Chen , Deniz Gündüz , Kaibin Huang , Walid Saad , Mehdi Bennis , Aneta Vulgarakis Feljan , H. Vincent Poor

Hybrid beamforming is widely recognized as an important technique for millimeter wave (mmWave) multiple input multiple output (MIMO) systems. Generalized spatial modulation (GSM) is further introduced to improve the spectrum efficiency.…

Information Theory · Computer Science 2023-02-16 Zhilin Lu , Xudong Zhang , Rui Zeng , Jintao Wang

Software-defined metasurfaces (SDMs) comprise a dense topology of basic elements called meta-atoms, exerting the highest degree of control over surface currents among intelligent panel technologies. As such, they can transform impinging…

Emerging Technologies · Computer Science 2019-05-08 Christos Liaskos , Ageliki Tsioliaridou , Shuai Nie , Andreas Pitsillides , Sotiris Ioannidis , Ian Akyildiz

One of the most critical aspects of enabling next-generation wireless technologies is developing an accurate and consistent channel model to be validated effectively with the help of real-world measurements. From this point of view,…

Signal Processing · Electrical Eng. & Systems 2022-01-19 Ibrahim Yildirim , Ertugrul Basar

The wireless spectrum's increasing complexity poses challenges and opportunities, highlighting the necessity for real-time solutions and robust data processing capabilities. Digital Twin (DT), virtual replicas of physical systems, integrate…

Networking and Internet Architecture · Computer Science 2024-11-11 Clifton Paul Robinson , Andrea Lacava , Pedram Johari , Francesca Cuomo , Tommaso Melodia

Commonly adopted in the manufacturing and aerospace sectors, digital twin (DT) platforms are increasingly seen as a promising paradigm to control, monitor, and analyze software-based, "open", communication systems. Notably, DT platforms…

Signal Processing · Electrical Eng. & Systems 2023-08-30 Clement Ruah , Osvaldo Simeone , Bashir Al-Hashimi

As an entirely-new paradigm to design the communication systems, deep learning (DL), an approach that the machine learns the desired wireless function, has received much attention recently. In order to fully realize the benefit of DL-aided…

Information Theory · Computer Science 2024-05-14 Jinhong Kim , Yongjun Ahn , Byonghyo Shim

Reconfigurable antennas possess the capability to dynamically adjust their fundamental operating characteristics, thereby enhancing system adaptability and performance. To fully exploit this flexibility in modern wireless communication…

Signal Processing · Electrical Eng. & Systems 2025-12-19 Mengzhen Liu , Ming Li , Rang Liu , Qian Liu

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

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

Deep Neural Networks (DNN) have been successful in en- hancing noisy speech signals. Enhancement is achieved by learning a nonlinear mapping function from the features of the corrupted speech signal to that of the reference clean speech…

Machine Learning · Computer Science 2016-06-16 Zhenzhou Wu , Sunil Sivadas , Yong Kiam Tan , Ma Bin , Rick Siow Mong Goh

The proliferation of emergent network applications (e.g., AR/VR, telesurgery, real-time communications) is increasing the difficulty of managing modern communication networks. These applications typically have stringent requirements (e.g.,…

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