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Randomized Smoothing (RS) is a prominent technique for certifying the robustness of neural networks against adversarial perturbations. With RS, achieving high accuracy at small radii requires a small noise variance, while achieving high…

机器学习 · 计算机科学 2026-03-10 Chenhao Sun , Yuhao Mao , Martin Vechev

A novel time-reversal subwavelength transmission technique, based on pulse shaping circuits (PSCs), is proposed. Compared to previously reported approaches, this technique removes the need for complex or electrically large electromagnetic…

光学 · 物理学 2015-10-28 Shuai Ding , Rui Zang , Lianfeng Zou , Bingzhong Wang , Christophe Caloz

This letter introduces a novel framework to optimize the power allocation for users in a Rate Splitting Multiple Access (RSMA) network. In the network, messages intended for users are split into different parts that are a single common part…

信息论 · 计算机科学 2021-10-06 Nguyen Quang Hieu , Dinh Thai Hoang , Dusit Niyato , Dong In Kim

The fundamental performance metrics of an intelligent reflective surface (IRS)-aided wireless system are presented. By optimizing the IRS phase-shift matrix, the received signal-to-noise ratio (SNR) is maximized at the destination in the…

信号处理 · 电气工程与系统科学 2020-10-26 Dulaj Gunasinghe , Dhanushka Kudathanthirige , Gayan Amarasuriya Aruma Baduge

For many applications in signal processing and machine learning, we are tasked with minimizing a large sum of convex functions subject to a large number of convex constraints. In this paper, we devise a new random projection method (RPM) to…

最优化与控制 · 数学 2024-04-08 Zhichun Yang , Fu-quan Xia , Kai Tu , Man-Chung Yue

The use of reconfigurable intelligent surfaces (RIS) can improve wireless communication by modifying the wireless link to create virtual line-of-sight links, bypass blockages, suppress interference, and enhance localization. However,…

信号处理 · 电气工程与系统科学 2023-09-08 Anish Pradhan , Harpreet S. Dhillon

A systematic design of adaptive waveform for Wireless Power Transfer (WPT) has recently been proposed and shown through simulations to lead to significant performance benefits compared to traditional non-adaptive and heuristic waveforms. In…

信息论 · 计算机科学 2017-04-07 Junghoon Kim , Bruno Clerckx , Paul D. Mitcheson

Higher shares of electricity generation from renewable energy sources and market liberalization is increasing uncertainty in power systems operation. At the same time, operation is becoming more flexible with improved control systems and…

最优化与控制 · 数学 2016-09-09 Line Roald , Sidhant Misra , Thilo Krause , Goran Andersson

This study revokes the performance of continuous phase modulation (CPM) able to generate a single-sideband (SSB) spectrum directly. This signal is analyzed in terms of modulation indices, pulse lengths, and pulse widths, all of which affect…

信号处理 · 电气工程与系统科学 2021-03-17 Karim Kassan , Haïfa Farès , D. Christian Glattli , Yves Louët

Electrically tunable optical devices present diverse functionalities for manipulating electromagnetic waves by leveraging elements capable of reversibly switching between different optical states. This adaptability in adjusting their…

Digital filters with variable bandwidth can be used for a variety of applications. Arbitrary change in the bandwidth of a digital Finite Impulse Response (FIR) filter can be acquired using sampling rate converters. In this paper, a sampling…

信号处理 · 电气工程与系统科学 2021-09-27 Sushmitha Sajeevu , V. Sakthivel

An optimal time-domain pulse width modulation technique is presented for single-phase and three-phase inverters under the constraint of sinusoidally modulated voltage pulse widths. Harmonic content in currents and voltages is expressed as…

系统与控制 · 电气工程与系统科学 2020-06-16 Siddharth Tyagi , Isaak Mayergoyz

In recent years, Rectified flow (RF) has gained considerable popularity largely due to its generation efficiency and state-of-the-art performance. In this paper, we investigate the degree to which RF automatically adapts to the intrinsic…

机器学习 · 统计学 2026-02-24 Saptarshi Roy , Alessandro Rinaldo , Purnamrita Sarkar

The discrepancy between the upper bound on throughput in wireless networks and the throughput scaling in random networks which is also known as the connectivity-throughput trade-off is analyzed. In a random network with $\lambda$ nodes per…

信息论 · 计算机科学 2010-08-23 Ralph Tanbourgi , Holger Jäkel , Friedrich K. Jondral

Reactive power plays an important role in supporting the real power transfer by maintaining voltage stability and system reliability. It is a critical element for a transmission operator to ensure the reliability of an electric system while…

神经与进化计算 · 计算机科学 2010-03-25 P. R. Sujin , T. Ruban Deva Prakash , M. Mary Linda

Probabilistic constellation shaping (PCS) has been widely applied to amplified coherent optical transmissions owing to its shaping gain over the uniform signaling and fine-grained rate adaptation to the underlying fiber channel condition.…

信号处理 · 电气工程与系统科学 2021-09-08 Di Che , Junho Cho , Xi Chen

Emitting phased array RF systems have to contend with an ever-increasing number of eavesdroppers as technological advancements provide lower cost and/or more capable radios. Often, eavesdroppers can accumulate sufficient information…

信号处理 · 电气工程与系统科学 2025-03-18 David Couto , Arash Samani , Alec Yonika

The availability of electromagnetic pulses with controllable field waveform and extremely short duration, even below a single optical cycle, is imperative to fully harness strong-field processes and to gain insight into ultrafast…

Dynamical models of wireless power transfer (WPT) systems are of primary importance for the dynamical behavior studies and controller design. However, the existing dynamical models usually suffer from high orders and complicated forms due…

信号处理 · 电气工程与系统科学 2019-03-25 Hongchang Li , Jingyang Fang , Yi Tang

Respondent-driven sampling (RDS) is a commonly used substitute for random sampling when studying hidden populations, such as injecting drug users or men who have sex with men, for which no sampling frame is known. The method is an extension…

统计方法学 · 统计学 2012-05-01 Xin Lu , Jens Malmros , Fredrik Liljeros , Tom Britton