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This letter investigates the potential of pinching-antenna systems for enhancing physical layer security. By pre-installing multiple pinching antennas at discrete positions along a waveguide, the capability of the considered system to…

信号处理 · 电气工程与系统科学 2025-07-15 Kaidi Wang , Zhiguo Ding , Naofal Al-Dhahir

Single-photon detectors based on avalanche photodiodes (SPAD) are key elements of many modern highly sensitive optical systems. One of the bottlenecks of such detectors is a afterpulsing effect which limits a detection rate and requires an…

量子物理 · 物理学 2018-05-23 M. A. Smirnov , N. S. Perminov , R. R. Nigmatullin , A. A. Talipov , S. A. Moiseev

The aim of this paper is twofold. First, we present a review of different recording options for gathering prosodic data in the event that fieldwork is impracticable (e.g. due to pandemics). Under this light, we mimic a long-distance reading…

音频与语音处理 · 电气工程与系统科学 2021-06-22 Giuseppe Magistro

An asymptotic technique is presented for finding the spectral efficiency of multi-antenna links in wireless networks where transmitters have Channel-State-Information (CSI) corresponding to their target receiver. Transmitters are assumed to…

信息论 · 计算机科学 2010-09-22 Siddhartan Govindasamy , Daniel W. Bliss , David H. Staelin

In Patil et. al 2024a, we developed a multitaper power spectrum estimation method, mtNUFFT, for analyzing time-series with quasi-regular spacing, and showed that it not only improves upon the statistical issues of the Lomb-Scargle…

太阳与恒星天体物理 · 物理学 2024-05-30 Aarya A. Patil , Gwendolyn M. Eadie , Joshua S. Speagle , David J. Thomson

We study light absorption in many-electron interacting systems beyond the linear regime by using a {\em single} broadband impulse of an electric field in the instantaneous limit. We determine non-pertubatively the absorption cross section…

This paper investigates the impact of array switching patterns on the accuracy of parameter estimation of multipath components for a time division multiplexed (TDM) channel sounder. To measure fast time-varying channels, the conventional…

信号处理 · 电气工程与系统科学 2018-05-18 Rui Wang , Olivier Renaudin , C. Umit Bas , Seun Sangodoyin , Andreas F. Molisch

Network telemetry is a key capability for managing the health and efficiency of a large-scale network. Alternate Marking Performance Measurement (AM-PM) is a recently introduced approach that accurately measures the packet loss and delay in…

网络与互联网体系结构 · 计算机科学 2019-04-24 Alon Riesenberg , Yonnie Kirzon , Michael Bunin , Elad Galili , Gidi Navon , Tal Mizrahi

Chirp signals have established diverse applications caused by the capable of producing time-dependent linear frequencies. Most feature extraction transformation methods for chirp signals focus on enhancing the performance of transform…

信号处理 · 电气工程与系统科学 2024-01-11 Shuyi Gu , Zhenghua Luo , Lin Hu , Yilin Zhang , Junxiong Guo

We investigate how multiphoton quantum states obtained through optical parametric amplification can be manipulated by performing a measurement on a small portion of the output light field. We study in detail how the macroqubit features are…

量子物理 · 物理学 2016-08-14 Chiara Vitelli , Nicolò Spagnolo , Fabio Sciarrino , Francesco De Martini

Optical absorption measurements characterize a wide variety of systems from atomic gases to \emph{in-vivo} diagnostics of living organisms. Here we study the potential of non-classical techniques to reduce statistical noise below the…

Over-the-air computation (AirComp) enables efficient wireless data aggregation in sensor networks by simultaneous processing of calculation and communication. This paper proposes a novel precoder design for AirComp that incorporates…

信号处理 · 电气工程与系统科学 2022-09-05 Ayano Nakai-Kasai , Tadashi Wadayama

The secrecy performance in both near-field and far-field communications is analyzed using two fundamental metrics: the secrecy capacity under a power constraint and the minimum power requirement to achieve a specified secrecy rate target.…

信息论 · 计算机科学 2025-04-11 Boqun Zhao , Chongjun Ouyang , Xingqi Zhang , Yuanwei Liu

An experimental scheme is introduced to measure multiple parameters that are encoded in the phase quadrature of a light beam. Using a modal description and a spectrally-resolved homodyne detection, it is shown that all of the information is…

光学 · 物理学 2017-03-29 Valérian Thiel , Jonathan Roslund , Pu Jian , Claude Fabre , Nicolas Treps

In this paper, we study efficient multi-beam training design for near-field communications to reduce the beam training overhead of conventional single-beam training methods. In particular, the array-division based multi-beam training…

信号处理 · 电气工程与系统科学 2024-06-24 Cong Zhou , Changsheng You , Zixuan Huang , Shuo Shi , Yi Gong , Chan-Byoung Chae , Kaibin Huang

The benefit of multi-antenna receivers is investigated in wireless ad hoc networks, and the main finding is that network throughput can be made to scale linearly with the number of receive antennas nR even if each transmitting node uses…

信息论 · 计算机科学 2016-11-17 Nihar Jindal , Jeffrey G. Andrews , Steven Weber

We come up with a novel application for image analysis methods in the context of direction dependent signal characteristics. For this purpose, we describe an inpainting approach adding benefit to technical signal information which are…

计算机视觉与模式识别 · 计算机科学 2024-06-21 Leif Bergerhoff

We are interested in the localization of defects in non-absorbing inhomogeneous media with far-field measurements generated by plane waves. In localization problems, most so-called sampling methods are based on a characterization involving…

数值分析 · 数学 2013-04-02 Yann Grisel , Jérémie Fourbil , Vincent Mouysset

This article considers the performance of wireless communication systems that utilize reconfigurable or pattern-dynamic antennas. The focus is on finite-state channels with memory and performance is assessed in terms of real-time behavior.…

信息论 · 计算机科学 2014-04-29 Santhosh Kumar , Jean-Francois Chamberland , Gregory H. Huff

We propose a new compressive imaging method for reconstructing 2D or 3D objects from their scattered wave-field measurements. Our method relies on a novel, nonlinear measurement model that can account for the multiple scattering phenomenon,…

计算机视觉与模式识别 · 计算机科学 2016-10-07 Hsiou-Yuan Liu , Ulugbek S. Kamilov , Dehong Liu , Hassan Mansour , Petros T. Boufounos