Results 71 to 80 of about 4,217,638 (167)
Nanophotonics, Volume 15, Issue 17, 11 September 2026.This work constructs a radio‐frequency front‐end‐free hybrid code‐division and space‐division‐multiplexing wireless communication system built on programmable space‐time‐coding metasurfaces. Orthogonal pseudo‐random codes reliably separate overlapped multistream signals that share identical frequency, time, and spatial resources.
Yuzhen Chen +3 more
wiley +1 more source
Moving target detection with polarimetric distributed MIMO radar in heterogeneous clutter
The Journal of Engineering, 2019 In this study, the authors consider the problem of moving target detection in the presence of heterogeneous clutter. The knowledge-aided method has been extended to derive the polarimetric multiple-input multiple-output (MIMO) radar detector.
Yan Xiang +3 more
doaj +1 more source
Advanced Electronic Materials, Volume 12, Issue 17, 7 September 2026.Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley +1 more source
Design of a compact ultra-wideband MIMO antenna
The Journal of Engineering, 2019 A compact ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna is presented. The MIMO antenna consists of four monopoles which are printed on FR4 substrate, whose impedance bandwidth is from 2 to 12 GHz, and the isolation of two adjacent ...
Wang Youcheng +3 more
doaj +1 more source
The Journal of Engineering, 2019 Performances of the regularised zero forcing (RZF) precoder, rapid numerical algorithm (RNA) precoder and the truncated polynomial expansion (TPE) Precoder are compared and analysed for massive multiple-input multiple-output (MIMO) wireless system in a ...
Emmanuel Mukubwa, Oludare A. Sokoya
doaj +1 more source
GDOP‐Aware TDOA Localization for High‐Accuracy Positioning in ISAC Networks
Internet Technology Letters, Volume 9, Issue 6, November/December 2026.
Muhammad Haris, Nasir Saeed
wiley +1 more source
DOA estimation for sub-array MIMO radar with limited samples
The Journal of Engineering, 2019 The problem of DOA estimation for sub-array multiple-input multiple-output radar is concerned. Employing compressive sampling concept and the minimum mean-square error (MMSE) technology, the proposed algorithm alternates between updating sample ...
Jiaolong Shan, Tao Yuan, Guanglei Zhang
doaj +1 more source
Multiuser MIMO-OFDM for Next-Generation Wireless Systems
, 2007 This overview portrays the 40-year evolution of orthogonal frequency division multiplexing (OFDM) research. The amelioration of powerful multicarrier OFDM arrangements with multiple-input multiple-output (MIMO) systems has numerous benefits, which are ...
Jiang, M +3 more
core +2 more sources
Unveiling Near-Capacity Code Design: The Realization of Shannon's Communication Theory for MIMO Channels [PDF]
, 2008 In this contribution we show how Shannon’s coding theory could be realized for Multiple-Input Multiple-Output (MIMO) channels with the aid of EXtrinsic Information Transfer (EXIT) charts and the Maximum-Aposteriori Probability (MAP) algorithm.
Wang, J +5 more
core +2 more sources
Robust rateless space time block coding for mmWave massive MIMO system
HeliyonIn the vast growing wireless communication system creating robust encoding mechanisms using space-time block codes (STBC) for mmWave massive MIMO to overcome uncertainty and ensure reliability is a critical concept to be covered. This article reviews the
Zelalem A. Kelem, Habib M. Hussein
doaj +1 more source