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Mostrando 481 - 500 Resultados de 786 Para Buscar '"mimo"', tiempo de consulta: 0.43s Limitar resultados
  1. 481
    “…A novel compact-slotted four element multiple input multiple output (MIMO) planar monopole antenna is proposed for 5G mmWave N257/N258 and N262 band applications. …”
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    Online Artículo Texto
    Design and Analysis of Modified U-Shaped Four Element MIMO Antenna for Dual-Band 5G Millimeter Wave Applications
  2. 482
    “…The construction of the four-port MIMO antenna in the form of a sickle is provided in the article. …”
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    Online Artículo Texto
    Sickle-shaped high gain and low profile based four port MIMO antenna for 5G and aeronautical mobile communication
  3. 483
    “…An Multi Input Multi Output (MIMO) system uses numerous antennas to enhance the functionality of the system. …”
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    Online Artículo Texto
    A Novel Channel Estimation Framework in MIMO Using Serial Cascaded Multiscale Autoencoder and Attention LSTM with Hybrid Heuristic Algorithm
  4. 484
    “…Multiple-Input Multiple-Output (MIMO) radar provides much more flexibility than the traditional radar thanks to its ability to realize far more observation channels than the actual number of transmit and receive (T/R) elements. …”
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    Online Artículo Texto
    Design and Imaging of Ground-Based Multiple-Input Multiple-Output Synthetic Aperture Radar (MIMO SAR) with Non-Collinear Arrays
  5. 485
    “…Therefore, various solutions for effectively reducing the channel estimation error, RSI, and HI levels in the HI-FD-MIMO relay system should be carried out to improve the system performance. …”
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    Online Artículo Texto
    Impacts of Imperfect Channel State Information, Transceiver Hardware, and Self-Interference Cancellation on the Performance of Full-Duplex MIMO Relay System
  6. 486
    “…However, there are fewer researches on distributed small satellite multiple input multiple output (MIMO) SAR. This paper proposes an ultra-high resolution imaging method for the distributed small satellite spotlight MIMO-SAR, which applies the sub-aperture division technique and the sub-aperture image coherent fusion algorithm to MIMO-SAR. …”
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    Online Artículo Texto
    Ultra-High Resolution Imaging Method for Distributed Small Satellite Spotlight MIMO-SAR Based on Sub-Aperture Image Fusion
  7. 487
    “…The beneficial effects of adopting a triangular lattice on phased arrays with regular and periodic grids for high-altitude platform station (HAPS) systems are presented in the scenario of massive MIMO communications operating within the 5G NR n257 and n258 frequency bands. …”
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    Online Artículo Texto
    Spectral Efficiency Improvement of 5G Massive MIMO Systems for High-Altitude Platform Stations by Using Triangular Lattice Arrays
  8. 488
    “…However, in the V2X millimeter-wave massive MIMO system, the high mobility of vehicles leads to the rapid time-varying of the wireless channel and results in the existing static channel estimation algorithms no longer applicable. …”
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    Online Artículo Texto
    Sparse Bayes Tensor and DOA Tracking Inspired Channel Estimation for V2X Millimeter Wave Massive MIMO System
  9. 489
    por Honda, Kazuhiro
    Publicado 2021
    “…This paper presents a method of implementing a 4 × 4 correlation matrix for evaluating the uplink channel properties of multiple-input multiple-output (MIMO) antennas using an over-the-air measurement system. …”
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    A Method of Implementing a 4 × 4 Correlation Matrix for Evaluating the Uplink Channel Properties of MIMO Over-the-Air Apparatus
  10. 490
    “…In this paper, a novel MIMO antenna operating in the UWB frequency band is presented. …”
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    Online Artículo Texto
    A novel approach for low mutual coupling and ultra-compact Two Port MIMO antenna development for UWB wireless application
  11. 491
    “…The perceptible novelty of the proposed MIMO system is its wide operating bandwidth, high gain, lower interelement gap, and excellent isolation within the MIMO components. …”
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    Online Artículo Texto
    Gain and isolation enhancement of a wideband MIMO antenna using metasurface for 5G sub-6 GHz communication systems
  12. 492
    “…Massive multiple-input multiple-output (massive-MIMO) is considered as the key technology to meet the huge demands of data rates in the future wireless communications networks. …”
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    Performance evaluation of frequency division duplex (FDD) massive multiple input multiple output (MIMO) under different correlation models
  13. 493
    “…In this paper, we address the challenging task of estimating the distance between different users in a Millimeter Wave (mmWave) massive Multiple-Input Multiple-Output (mMIMO) system. The conventional Time of Arrival (ToA) and Angle of Arrival (AoA) based methods need users under the Line-of-Sight (LoS) scenario. …”
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    Online Artículo Texto
    Inter-User Distance Estimation Based on a New Type of Fingerprint in Massive MIMO System for COVID-19 Contact Detection
  14. 494
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    Online Artículo Texto
    A New Low Complexity Angle of Arrival Algorithm for 1D and 2D Direction Estimation in MIMO Smart Antenna Systems
  15. 495
    “…Massive multiple-input multiple-output (M-MIMO) is a substantial pillar in fifth generation (5G) mobile communication systems. …”
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    Online Artículo Texto
    A Low Complexity Near-Optimal Iterative Linear Detector for Massive MIMO in Realistic Radio Channels of 5G Communication Systems
  16. 496
    “…Besides, this paper constitutes a first step to the implementation of a mmWave MIMO 5G cooperative network platform.…”
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    Online Artículo Texto
    A Two-Hop mmWave MIMO NR-Relay Nodes to Enhance the Average System Throughput and BER in Outdoor-to-Indoor Environments
  17. 497
    “…An offset quad-element, two-port, high-gain, and multiband multiple-input multiple-output (MIMO) planar antenna based on a log-periodic dipole array (LPDA) for Ku/K-band wireless communications is proposed, in this paper. …”
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    A high gain multiband offset MIMO antenna based on a planar log-periodic array for Ku/K-band applications
  18. 498
    “…Based on low-rank matrix reconstruction theory, this paper proposes a joint DOD and DOA estimation method for coherent targets with bistatic coprime array MIMO radar. Unlike the conventional vectorization, the proposed method processed the coprime array with virtual sensor interpolation, which obtained a uniform linear array to generate the covariance matrix. …”
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    Joint Estimation Method of DOD and DOA of Bistatic Coprime Array MIMO Radar for Coherent Targets Based on Low-Rank Matrix Reconstruction
  19. 499
    “…A novel design of a reconfigurable MIMO antenna array of a 3D geometry-based solar cell integration that is operating at sub-6 GHz for self-power applications in a 5G modern wireless communication network. …”
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    Optically Remote Control of Miniaturized 3D Reconfigurable CRLH Printed Self-Powered MIMO Antenna Array for 5G Applications
  20. 500
    “…A self-decoupled technique is described that enables the radiating elements in the antenna array to be densely packed for multiple-input multiple-output (MIMO) wireless communications systems. High isolation between the adjacent antenna elements is obtained by fixing the radiating elements in an orthogonal configuration with respects to each other. …”
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    Online Artículo Texto
    A Self-Decoupling Technique to Realize Dense Packing of Antenna Elements in MIMO Arrays for Wideband Sub-6 GHz Communication Systems
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