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Underwater environments create a challenging channel for communications. In this paper, we design a novel receiver system by exploring the machine learning technique--Deep Belief Network (DBN)-- to combat the signal distortion caused by the…

音频与语音处理 · 电气工程与系统科学 2021-03-01 Abigail Lee-Leon , Chau Yuen , Dorien Herremans

We present an approach based on density-functional theory for the calculation of fundamental gaps of both finite and periodic two-dimensional (2D) electronic systems. The computational cost of our approach is comparable to that of total…

材料科学 · 物理学 2021-08-11 Alberto Guandalini , Alice Ruini , Esa Räsänen , Carlo Andrea Rozzi , Stefano Pittalis

This work presents blind joint interference suppression and power allocation algorithms for DS-CDMA networks with multiple relays and decode and forward protocols. A scheme for joint allocation of power levels across the relays subject to…

信息论 · 计算机科学 2013-04-10 Rodrigo C. de Lamare

We propose a new approach, {\it two-dimensional fused binary compressive sensing} (2DFBCS) to recover 2D sparse piece-wise signals from 1-bit measurements, exploiting 2D group sparsity for 1-bit compressive sensing recovery. The proposed…

计算机视觉与模式识别 · 计算机科学 2014-02-24 Xiangrong Zeng , Mário A. T. Figueiredo

Digital Audio Broadcasting (DAB)-like systems employ differentially encoded (DE) phase-shift keying (PSK) for transmission. While turbo-DE-PSK receivers offer substantial performance gains through iterative decoding by making the DE-PSK an…

信号处理 · 电气工程与系统科学 2025-11-27 Chin-Hung Chen , Yan Wu , Wim van Houtum , Alex Alvarado

Affine Frequency Division Multiplexing (AFDM) has attracted considerable attention for its robustness to Doppler effects. However, its high receiver-side computational complexity remains a major barrier to practical deployment. To address…

信号处理 · 电气工程与系统科学 2025-08-19 Shuntian Tang , Zesong Fei , Xinyi Wang , Dongkai Zhou , Zhiqiang Wei , Christos Masouros

We propose a new machine-learning approach for fiber-optic communication systems whose signal propagation is governed by the nonlinear Schr\"odinger equation (NLSE). Our main observation is that the popular split-step method (SSM) for…

信号处理 · 电气工程与系统科学 2020-10-28 Christian Häger , Henry D. Pfister

Product distribution matching (PDM) is proposed to generate target distributions over large alphabets by combining the output of several parallel distribution matchers (DMs) with smaller output alphabets. The parallel architecture of PDM…

信息论 · 计算机科学 2017-02-27 Georg Böcherer , Patrick Schulte , Fabian Steiner

In Ultrasound (US) imaging, Delay and Sum (DAS) is the most common beamformer, but it leads to low quality images. Delay Multiply and Sum (DMAS) was introduced to address this problem. However, the reconstructed images using DMAS still…

信号处理 · 电气工程与系统科学 2018-01-19 Moein Mozaffarzadeh , Masume Sadeghi , Ali Mahloojifar , Mahdi Orooji

Probabilistic shaping (PS) has attracted significant attention in intensity-modulation and direct-detection (IM-DD) systems. However, due to the unique system model and inherent constraints, the effective application of the PS technique is…

信号处理 · 电气工程与系统科学 2025-07-25 Dongdong Zou , Wei Wang , Jiawen Yao , Zhongxing Tian , Zeyu Feng , Huan Huang , Fan Li , Gordon Ning Liu , Gangxiang Shen , Yi Cai

Photonic analog to digital conversion offers promise to overcome the signal-to-noise ratio (SNR) and sample rate trade-off in conventional analog to digital converters (ADCs), critical for modern digital communications and signal analysis.…

信号处理 · 电气工程与系统科学 2019-09-09 Callum Deakin , Zhixin Liu

Beyond 100G passive optical networks (PONs) will be required to meet the ever-increasing traffic demand in the future. Coherent optical technologies are the competitive solutions for the future beyond 100G PON but also face challenges such…

信息论 · 计算机科学 2023-06-21 Haide Wang , Ji Zhou , Jinyang Yang , Jianrui Zeng , Weiping Liu , Changyuan Yu , Fan Li , Zhaohui Li

For multichannel speech enhancement, this letter derives a robust maximum likelihood distortionless response beamformer by modeling speech sparse priors with a complex generalized Gaussian distribution, where we refer to as the CGGD-MLDR…

音频与语音处理 · 电气工程与系统科学 2021-02-22 Weixin Meng , Chengshi Zheng , Xiaodong Li

Efficient mitigation of power amplifier (PA) nonlinear distortion in multi-user hybrid precoding based broadband mmWave systems is an open research problem. In this article, we first carry out detailed signal and distortion modeling in…

信号处理 · 电气工程与系统科学 2020-05-27 Alberto Brihuega , Lauri Anttila , Mahmoud Abdelaziz , Fredrik Tufvesson , Mikko Valkama

To enhance the scalability and performance of the traditional finite-difference time-domain (FDTD) methods, a three-dimensional summation-by-parts simultaneous approximation term (SBP-SAT) FDTD method is developed to solve complex…

计算工程、金融与科学 · 计算机科学 2022-06-02 Yu Cheng , Hanhong Liu , Xinsong Wang , Guangzhi Chen , Xiang-Hua Wang , Xingqi Zhang , Shunchuan Yang , Zhizhang Chen

We propose a statistical benchmark for diffusion posterior sampling (DPS) algorithms for Bayesian linear inverse problems. The benchmark synthesizes signals from sparse L\'evy-process priors whose posteriors admit efficient Gibbs methods.…

信号处理 · 电气工程与系统科学 2025-09-17 Martin Zach , Youssef Haouchat , Michael Unser

In this work, we present a novel robust distributed beamforming (RDB) approach based on low-rank and cross-correlation techniques. The proposed RDB approach mitigates the effects of channel errors in wireless networks equipped with relays…

信号处理 · 电气工程与系统科学 2019-12-04 H. Ruan , R. C. de Lamare

Decoding sparse quantum codes can be accomplished by syndrome-based decoding using a belief propagation (BP) algorithm.We significantly improve this decoding scheme by developing a new feedback adjustment strategy for the standard BP…

量子物理 · 物理学 2013-09-25 Yun-Jiang Wang , Barry C. Sanders , Bao-Ming Bai , Xin-Mei Wang

We introduce a system-independent method to derive effective atomic C$_6$ coefficients and polarizabilities in molecules and materials purely from charge population analysis. This enables the use of dispersion-correction schemes in…

Constructing large-scale quantum resources is an important foundation for further improving the efficiency and scalability of quantum communication. Here, we present an efficient extraction and stable control scheme of 40 pairs of entangled…

量子物理 · 物理学 2025-08-11 Xuan Liu , Shaoping Shi , Yimiao Wu , Xuan Wang , Long Tian , Wei Li , Yajun Wang , Yaohui Zheng
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