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In this study, we present a parallel topology algorithm with a suitable interpolation method for chimera simulations in CFD. The implementation is done in the unstructured Finite Volume (FV) framework and special attention is given to the…

Fluid Dynamics · Physics 2023-05-29 Spiros Zafeiris , George Papadakis

Generative Artificial Intelligence (AI) has become incredibly popular in recent years, and the significance of traditional accelerators in dealing with large-scale parameters is urgent. With the diffusion model's parallel structure, the…

Hardware Architecture · Computer Science 2024-09-27 Huan-Ke Hsu , I-Chyn Wey , T. Hui Teo

Matrix factorization (MF) has been widely used in e.g., recommender systems, topic modeling and word embedding. Stochastic gradient descent (SGD) is popular in solving MF problems because it can deal with large data sets and is easy to do…

Machine Learning · Computer Science 2016-11-11 Xiaolong Xie , Wei Tan , Liana L. Fong , Yun Liang

To cope with the explosive bandwidth demand, significant progress has been made in the ITU-T standardization sector to define a higher-speed passive optical network (PON) with a 50Gb/s line rate. Recently, 50G PON becomes mature gradually,…

Networking and Internet Architecture · Computer Science 2023-08-03 Ji Zhou , Zhenping Xing , Haide Wang , Kuo Zhang , Xi Chen , Qiguang Feng , Keshuang Zheng , Yijia Zhao , Zhen Dong , Tao Gui , Zhicheng Ye , Liangchuan Li

The search for a compatible application of memristor-CMOS logic gates has remained elusive, as the data density benefits are offset by slow switching speeds and resistive dissipation. Active microdisplays typically prioritize pixel density…

Emerging Technologies · Computer Science 2021-04-22 Xiaoyuan Wang , Zhiru Wu , Pengfei Zhou , Herbert H. C. Iu , Jason K. Eshraghian , Sung Mo Kang

In fingerprint matching, fixed-length descriptors generally offer greater efficiency compared to minutiae set, but the recognition accuracy is not as good as that of the latter. Although much progress has been made in deep learning based…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Zhiyu Pan , Yongjie Duan , Jianjiang Feng , Jie Zhou

Deploying mixed-precision neural networks on edge devices is friendly to hardware resources and power consumption. To support fully mixed-precision neural network inference, it is necessary to design flexible hardware accelerators for…

Hardware Architecture · Computer Science 2025-02-04 Liang Zhao , Kunming Shao , Fengshi Tian , Tim Kwang-Ting Cheng , Chi-Ying Tsui , Yi Zou

The issue of diminished spectral efficiency (SE) of the downlink (DL) transmission in distributed cell-free massive MIMO (CF-mMIMO) systems poses a significant challenge in terms of user equipment (UE) performance when compared to their…

Signal Processing · Electrical Eng. & Systems 2023-10-31 Reza Roshanghias , Reza Saadat

Digital single-flux quantum (SFQ) technology promises to meet the demands of ultra low power and high speed computing needed for future exascale supercomputing systems. The combination of ultra high clock frequencies, gate-level pipelines,…

Emerging Technologies · Computer Science 2019-10-25 Gourav Datta , Haolin Cong , Souvik Kundu , Peter A. Beerel

The increasingly demanding objectives for next generation wireless communications have spurred recent research activities on multi-antenna transceiver hardware architectures and relevant intelligent communication schemes. Among them belong…

Information Theory · Computer Science 2022-05-18 George C. Alexandropoulos , Md Atiqul Islam , Besma Smida

Edge detection is a fundamental image analysis task that underpins numerous high-level vision applications. Recent advances in Transformer architectures have significantly improved edge quality by capturing long-range dependencies, but this…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Yuhan Gao , Xinqing Li , Xin He , Bing Li , Xinzhong Zhu , Ming-Ming Cheng , Yun Liu

A current-mode CMOS design is proposed for realizing receive mode multi-beams in the analog domain using a novel DFT approximation. High-bandwidth CMOS RF transistors are employed in low-voltage current mirrors to achieve bandwidths…

Information Theory · Computer Science 2016-11-17 V. Ariyarathna , S. Kulasekera , A. Madanayake , D. Suarez , R. J. Cintra , F. M. Bayer , L. Belostotski

There has been an increasing interest in developing efficient immersed boundary method (IBM) based on Cartesian grids, recently in the context of high-order methods. IBM based on volume penalization is a robust and easy to implement method…

Numerical Analysis · Mathematics 2021-07-22 Jiaqing Kou , Esteban Ferrer

In this paper we present a complete characterization of the first batch of Resistive AC-Coupled Silicon Detectors, called RSD1, designed at INFN Torino and manufactured by Fondazione Bruno Kessler (FBK) in Trento. With their 100%…

Instrumentation and Detectors · Physics 2020-03-25 M. Mandurrino , N. Cartiglia , M. Tornago , M. Ferrero , F. Siviero , G. Paternoster , F. Ficorella , M. Boscardin , L. Pancheri , G. F. Dalla Betta

A new method is discussed for the systematic synthesis, design and performance optimization of varactor-based parametric frequency dividers (PFDs) exhibiting an ultra-low power threshold ($P_{th}$). For the first time, it is analytically…

Signal Processing · Electrical Eng. & Systems 2020-08-26 Hussein M. E. Hussein , Mahmoud A. A. Ibrahim , Giuseppe Michetti , Matteo Rinaldi , Marvin Onabajo , Cristian Cassella

Lightweight direct Time-of-Flight (dToF) sensors are ideal for 3D sensing on mobile devices. However, due to the manufacturing constraints of compact devices and the inherent physical principles of imaging, dToF depth maps are sparse and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Xuan Zhu , Jijun Xiang , Xianqi Wang , Longliang Liu , Yu Wang , Hong Zhang , Fei Guo , Xin Yang

We propose a comprehensive scheme for realizing a massive multiple-input multiple-output (MIMO) system with dual-polarized antennas in frequency division duplexing (FDD) mode. Employing dual-polarized elements in a massive MIMO array has…

Information Theory · Computer Science 2020-08-26 Mahdi Barzegar Khalilsarai , Tianyu Yang , Saeid Haghighatshoar , Xinping Yi , Giuseppe Caire

Microwave Kinetic Inductance Detectors (MKIDs) have great potential for large very sensitive detector arrays for use in, for example, sub-mm imaging. Being intrinsically readout in the frequency domain, they are particularly suited for…

Instrumentation and Methods for Astrophysics · Physics 2009-03-16 S. J. C. Yates , A. M. Baryshev , J. J. A. Baselmans , B. Klein , R. Güsten

In the field of High Performance Computing, communications among processes represent a typical bottleneck for massively parallel scientific applications. Object of this research is the development of a network interface card with specific…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-09-07 Roberto Ammendola

Numerical investigation of compressible flows faces two main challenges. In order to accurately describe the flow characteristics, high-resolution nonlinear numerical schemes are needed to capture discontinuities and resolve wide…

Computational Physics · Physics 2020-12-09 Nils Hoppe , Stefan Adami , Nikolaus A. Adams