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This paper focuses on the secure transmission of wireless-powered relay systems with imperfect eavesdropper channel state information (ECSI). For efficient energy transfer and information relaying, a novel two-phase protocol is proposed, in…

Information Theory · Computer Science 2018-04-25 Jingping Qiao , Haixia Zhang , Feng Zhao , Dongfeng Yuan

This article proposes a source-independent method for detecting faults along Transmission Lines (TL) to reduce the protection issues arising from Inverter-Based Resources (IBRs). In the proposed method, high-frequency waves are sent from…

Applied Physics · Physics 2024-09-12 Reza Jalilzadeh Hamidi , Julio Rodriguez

Low-rank tensor completion recovers missing entries based on different tensor decompositions. Due to its outstanding performance in exploiting some higher-order data structure, low rank tensor ring has been applied in tensor completion. To…

Machine Learning · Computer Science 2020-07-14 Huyan Huang , Yipeng Liu , Ce Zhu

Pretrained transformers readily adapt to new sequence modeling tasks via zero-shot prompting, but relational domains still lack architectures that transfer across datasets and tasks. The core challenge is the diversity of relational data,…

We demonstrate experimentally that reflectionless scattering modes (RSMs), a generalized version of coherent perfect absorption, can be functionalized to perform reflectionless programmable signal routing. We achieve versatile…

Applied Physics · Physics 2023-01-31 Jérôme Sol , Ali Alhulaymi , A. Douglas Stone , Philipp del Hougne

Parameter variations within the resonant network of wireless power transfer (WPT) systems can cause drift in the resonant frequency, leading to a detuned system that requires higher power capacity and experiences reduced transfer…

Systems and Control · Electrical Eng. & Systems 2024-09-16 Chang Liu , Wei Han , Guangyu Yan , Bowang Zhang , Chunlin Li

Frequency synthesis (FS) is a technique vital for all kinds of radio frequency (RF) communications, such as: mobile phones, Bluetooth, Wi-Fi, radio, TV and satellite, and in other equipment requiring periodic signals of stable and…

Signal Processing · Electrical Eng. & Systems 2019-02-27 Mario Stipčević

In this paper, a multi-antenna assisted virtual full-duplex (FD) relaying with reliability-aware iterative decoding at destination node is proposed to improve system spectral efficiency and reliability. This scheme enables two half-duplex…

Information Theory · Computer Science 2017-10-19 Jiancao Hou , Sandeep Narayanan , Yi Ma , Mohammad Shikh-Bahaei

Audio signal processing frequently requires time-frequency representations and in many applications, a non-linear spacing of frequency-bands is preferable. This paper introduces a framework for efficient implementation of invertible signal…

Functional Analysis · Mathematics 2013-05-17 Nicki Holighaus , Monika Dörfler , Gino Angelo Velasco , Thomas Grill

Holographic metasurface transceivers (HMT) is an emerging technology for enhancing the coverage and rate of wireless communication systems. However, acquiring accurate channel state information in HMT-assisted wireless communication systems…

Signal Processing · Electrical Eng. & Systems 2023-01-10 Debamita Ghosh , Manjesh K. Hanawal , Nikola Zlatanov

Reconfigurable Intelligent Surface (RIS) can create favorable multipath to establish strong links that are useful in millimeter wave (mmWave) communications. While previous works used Rayleigh or Rician fading, we use the fluctuating…

Information Theory · Computer Science 2020-11-10 Hongyang Du , Jiayi Zhang , Julian Cheng , Zhaohua Lu , Bo Ai

Location of non-stationary forced oscillation (FO) sources can be a challenging task, especially in cases under resonance condition with natural system modes, where the magnitudes of the oscillations could be greater in places far from the…

Systems and Control · Electrical Eng. & Systems 2022-03-22 Pablo Gill Estevez , Pablo Marchi , Francisco Messina , Cecilia Galarza

Two-way relaying (TWR) reduces the spectral-efficiency loss caused in conventional half-duplex relaying. TWR is possible when two nodes exchange data simultaneously through a relay. In cellular systems, data exchange between base station…

Information Theory · Computer Science 2013-07-16 Rohit Budhiraja , Karthik KS , Bhaskar Ramamurthi

We address the critical problem of interference rejection in radio-frequency (RF) signals using a data-driven approach that leverages deep-learning methods. A primary contribution of this paper is the introduction of the RF Challenge, which…

Signal Processing · Electrical Eng. & Systems 2025-07-29 Alejandro Lancho , Amir Weiss , Gary C. F. Lee , Tejas Jayashankar , Binoy Kurien , Yury Polyanskiy , Gregory W. Wornell

In this paper, we present a joint end-to-end line segment detection algorithm using Transformers that is post-processing and heuristics-guided intermediate processing (edge/junction/region detection) free. Our method, named LinE segment…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Yifan Xu , Weijian Xu , David Cheung , Zhuowen Tu

The recent proposed orthogonal time frequency space (OTFS) modulation shows signifcant advantages than conventional orthogonal frequency division multiplexing (OFDM) for high mobility wireless communications. However, a challenging problem…

Information Theory · Computer Science 2022-07-25 Xiangxiang Li , Haiyan Wang , Yao Ge , Xiaohong Shen , Yuanyuan Lei

In this paper, we propose a novel splitting receiver, which involves joint processing of coherently and non-coherently received signals. Using a passive RF power splitter, the received signal at each receiver antenna is split into two…

Information Theory · Computer Science 2017-10-13 Wanchun Liu , Xiangyun Zhou , Salman Durrani , Petar Popovski

The integration of communication, sensing, and wireless power transfer (WPT) is a cornerstone of 6G intelligent IoT. However, relying on traditional beamforming imposes prohibitive overheads due to complex channel state information (CSI)…

Signal Processing · Electrical Eng. & Systems 2025-12-10 Yixuan Guo , Mingliang Xiong , Qingwen Liu

In this work, a recently proposed Head-Related Transfer Function (HRTF)-based Robust Least-Squares Frequency-Invariant (RLSFI) beamformer design is analyzed with respect to its robustness against localization errors, which lead to a…

Sound · Computer Science 2016-03-30 Hendrik Barfuss , Walter Kellermann

Abstract Purpose The complex signal decay during the transient FLASH MRI readout can lead to artifacts in magnitude and phase images. We show that target-driven optimization of individual rf flip angles and phases can realize near-ideal…

Medical Physics · Physics 2024-07-01 Simon Weinmüller , Jonathan Endres , Nam Dang , Rudolf Stollberger , Moritz Zaiss