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In this paper, we combine the design of band-pass frequency selective surfaces (FSSs) with polarization converters to realize a broadband frequency-selective polarization converter (FSPC) with lowbackward scattering, which consists of the…

Applied Physics · Physics 2019-11-25 Lingling Wang , Shaobin Liu , Xiangkun Kong , Haifeng Zhang , Yongdiao Wen , Qiming Yu

Obtaining highly accurate depth from stereo images in real time has many applications across computer vision and robotics, but in some contexts, upper bounds on power consumption constrain the feasible hardware to embedded platforms such as…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Oscar Rahnama , Tommaso Cavallari , Stuart Golodetz , Alessio Tonioni , Thomas Joy , Luigi Di Stefano , Simon Walker , Philip H. S. Torr

In the past few years, the need of measuring accurately the spatial and temporal coordinates of the particles generated in high-energy physics experiments has spurred a strong R\&D in the field of silicon sensors. Within these research…

Massive multiple-input multiple-output (MIMO) is believed to deliver unrepresented spectral efficiency gains for 5G and beyond. However, a practical challenge arises during its commercial deployment, which is known as the ``curse of…

Information Theory · Computer Science 2022-05-27 Ziao Qin , Haifan Yin , Yandi Cao , Weidong Li , David Gesbert

Cell-free massive multiple-input multiple-output (CF mMIMO) systems are characterized by having many more access points (APs) than user equipments (UEs). A key challenge is to determine which APs should serve which UEs. Previous work has…

Information Theory · Computer Science 2022-05-09 Shuaifei Chen , Jiayi Zhang , Emil Björnson , Özlem Tuğfe Demir , Bo Ai

Due to the confined focal length of optical sensors, focusing all objects in a scene with a single sensor is a difficult task. To handle such a situation, image fusion methods are used in multi-focus environment. Discrete Cosine Transform…

Computer Vision and Pattern Recognition · Computer Science 2016-02-25 Ashutosh Mishra , Sudipta Mahapatra , Swapna Banerjee

Finite field multiplier is mainly used in error-correcting codes and signal processing. Finite field multiplier is regarded as the bottleneck arithmetic unit for such applications and it is the most complicated operation over finite field…

Information Theory · Computer Science 2023-09-15 Saeideh Nabipour , Gholamreza Zare Fatin , Javad Javidan

A major obstacle for widespread deployment of frequency division duplex (FDD)-based Massive multiple-input multiple-output (MIMO) communications is the large signaling overhead for reporting full downlink (DL) channel state information…

Information Theory · Computer Science 2019-01-14 Maximilian Arnold , Sebastian Dörner , Sebastian Cammerer , Sarah Yan , Jakob Hoydis , Stephan ten Brink

Hybrid precoding has been recently proposed as a cost-effective transceiver solution for millimeter wave (mm-wave) systems. While the number of radio frequency (RF) chains has been effectively reduced in existing works, a large number of…

Information Theory · Computer Science 2018-07-04 Xianghao Yu , Jun Zhang , Khaled B. Letaief

In this work, we develop an efficient precoding strategy for a multi-user multiple-input-single output (MU MISO) system operating in frequency-division-duplex (FDD) mode, where rate splitting multiple access (RSMA) is implemented. To this…

Signal Processing · Electrical Eng. & Systems 2024-03-22 Donia Ben Amor , Michael Joham , Wolfgang Utschick

Nowadays, hyperspectral imaging is recognized as cornerstone remote sensing technology. The explosive growth in image data volume and instrument data rates, compete with limited on-board storage resources and downlink bandwidth, making…

Image and Video Processing · Electrical Eng. & Systems 2024-05-29 Panagiotis Chatziantoniou , Antonis Tsigkanos , Dimitris Theodoropoulos , Nektarios Kranitis , Antonis Paschalis

This paper presents a novel framework for low-latency frequency division duplex (FDD) multi-input multi-output (MIMO) transmission with Internet of Things (IoT) communications. Our key idea is eliminating feedback associated with downlink…

Signal Processing · Electrical Eng. & Systems 2025-12-25 Juntaek Han , Namhyun Kim , Jeonghun Park

Multi-colour light-emitting diode (LED) based visible light communication (VLC) benefits from wavelength diversity while providing indoor illumination. Colour shift keying (CSK) is a well-researched IEEE standardised multi-colour VLC…

Signal Processing · Electrical Eng. & Systems 2019-03-26 Ravinder Singh , Timothy O'Farrell , Thai C. Bui , Mauro Biagi , John P. R. David

The Xilinx ZCU111 Radio Frequency System on Chip (RFSoC) is a promising solution for reading out large arrays of microwave kinetic inductance detectors (MKIDs). The board boasts eight on-chip 12-bit / 4.096 GSPS analogue-to-digital…

Instrumentation and Methods for Astrophysics · Physics 2023-01-24 Eoin Baldwin , Mario De Lucia , Colm Bracken , Gerhard Ulbricht , Oisin Creaner , Jack Piercy , Tom Ray

Cyclostationary analysis is widely used in signal processing, particularly in the analysis of human-made signals, and spectral correlation density (SCD) is often used to characterise cyclostationarity. Unfortunately, for real-time…

Hardware Architecture · Computer Science 2025-06-24 Carol Jingyi Li , Ruilin Wu , Philip H. W. Leong

A variable-phase-shifter (VPS) architecture with hybrid precoding for mixture use of phase shifters and switches, is proposed for millimeter wave massive multiple-input multiple-output communications. For the VPS architecture, a hybrid…

Information Theory · Computer Science 2022-08-02 Chenhao Qi , Qiang Liu , Xianghao Yu , Geoffrey Ye Li

In the previous work, Zhang et al. proposed a multi-resolution smoothed particle hydrodynamics (SPH) method for fluid-structure interactions (FSI) with achieving an optimized computational efficiency meanwhile maintaining good numerical…

Fluid Dynamics · Physics 2022-05-03 Chi Zhang , Yujie Zhu , Xiangyu Hu

A silicon microstrip detector (SSD) has been developed to have state of the art spatial resolution and a large sensitive area under stringent power constraints. The design incorporates three floating strips with their bias resistors…

In this work, we derive a lower bound on the training-based achievable downlink (DL) sum rate (SR) of a multi-user multiple-input-single-output (MISO) system operating in frequency-division-duplex (FDD) mode. Assuming linear minimum mean…

Signal Processing · Electrical Eng. & Systems 2023-12-05 Donia Ben Amor , Michael Joham , Wolfgang Utschick

NAND flash-based Solid State Drives (SSDs), which are widely used from embedded systems to enterprise servers, are enhancing performance by exploiting the parallelism of NAND flash memories. To cope with the performance improvement of SSDs,…

Hardware Architecture · Computer Science 2017-04-12 Yeong-Jae Woo , Sang Lyul Min