Results 41 to 50 of about 65,120 (254)
3-D Geometrical Model for Multi-Polarized MIMO Systems
IEEE Access, 2017 Multiple-input multiple-output (MIMO) systems capacity is highly influenced by the correlation between antennas, and the high correlation will result in a low capacity.
Xudong Cheng, Yejun He, Mohsen Guizani
doaj +1 more source
, 2018 Hybrid analog-digital architectures are considered as promising candidates for implementing millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems since they enable a considerable reduction of the required number of costly radio ...
Fischer, Georg +4 more
core +1 more source
A Twelve-Ports Dual-Polarized MIMO Log-Periodic Dipole Array Antenna for UWB Applications [PDF]
Radioengineering, 2019 A twelve-port dual-polarized multiple-input–multiple-output (MIMO) log-periodic dipole array (LPDA) antenna for ultra-wideband (UWB) applications is proposed in this paper.
L. Y. Chen, J. S. Hong, M. Amin
doaj
Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems
Advanced Electronic Materials, EarlyView.Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang +9 more
wiley +1 more source
A Generalized Spatial Modulation System Using Massive MIMO Space Time Coding Antenna Grouping
Entropy, 2020 Massive multiple input multiple output (MIMO), also known as a very large-scale MIMO, is an emerging technology in wireless communications that increases capacity compared to MIMO systems.
Amira I. Zaki +3 more
doaj +1 more source
Large-Scale MIMO versus Network MIMO for Multicell Interference Mitigation
, 2014 This paper compares two important downlink multicell interference mitigation techniques, namely, large-scale (LS) multiple-input multiple-output (MIMO) and network MIMO. We consider a cooperative wireless cellular system operating in time-division duplex
Adve, Raviraj S. +2 more
core +1 more source
Antenna selection for MIMO-NOMA networks [PDF]
2017 IEEE International Conference on Communications (ICC), 2017 Submitted for possible conference ...
Yu, Yuehua +4 more
openaire +2 more sources
Review of millimeter‐wave and terahertz near‐field synthetic aperture radar imaging technology
InfoScience, EarlyView.Abstract This paper comprehensively reviews the development of millimeter‐wave (MMW) and terahertz (THz) near‐field imaging technologies, with an emphasis on the state of synthetic aperture radar (SAR)‐based imaging technologies. Near‐field imaging technologies are categorized into passive and active imaging modes, among which active imaging is favored
Qi Yang +3 more
wiley +1 more source
MIMO Antennas for Smart 5G Devices
IEEE Access, 2018 This paper presents the design of $8 \times 8$ multiple-input multiple-output (MIMO) antennas for future 5G devices, such as smart watches and dongles.
Nosherwan Shoaib +5 more
doaj +1 more source
Frozen Differential Scattering in Reconfigurable Complex Media
Laser &Photonics Reviews, EarlyView.A localized perturbation universally results in a rank‐one update of the scattering matrix of any complex medium. The resulting differential output wavefront is “frozen”: its spatial pattern is fixed (agnostic to the input wavefront). Experiments with a programmable‐metasurface‐parametrized wireless link validate frozen differential scattering and ...
Philipp del Hougne
wiley +1 more source