Results 1 to 10 of about 381,897 (285)
Neural network channel estimator for time‐variant frequency‐selective fading channels
Electronics Letters, 2023 The next generations of wireless communications systems are pushing the limits of the channel estimation methods utilized in the orthogonal frequency division multiplexing receptors.
Vinicius Piro Barragam +2 more
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Diffusive Mobile Molecular Communications Over Time-Variant Channels [PDF]
IEEE Communications Letters, 2017 4 pages, 3 figures, 1 table. Accepted for publication in IEEE Communications Letters (Author's comment: Manuscript submitted Jan. 19, 2017; revised Feb. 20, 2017; accepted Feb. 22, 2017)
Arman Ahmadzadeh +3 more
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A Novel Power Spectrum-Based Sequential Tracker for Time-Variant Radio Propagation Channel
IEEE Access, 2020 Cluster tracking is a mainstream approach for the study of time-variant channel characteristics. In the paper, we propose a power spectrum based sequential tracker (PSBST) to compensate for the disadvantages of existing cluster tracking algorithms.
Tianqi Wu, Xuefeng Yin, Juyul Lee
doaj +3 more sources
IEEE Access, 2021 Channel state information (CSI) is required at the transmitter for achieving the maximum potentials of multiple-input multiple-output (MIMO) systems. In fast time-variant vehicular communications channels high data rate feedback lines are required in a ...
Farnoosh Talaei +2 more
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IEEE Open Journal of Antennas and Propagation, 2021 Propagation graph (PG) is a stochastic channel simulation method for scattering propagation. In this article, an embedded-PG (EPG) approach, an extension of conventional PG, is proposed to simulate reflection and scattering multi-path behaviors in ...
Yuan Liu +4 more
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Analytical RS-GBSM-Based Nonstationary Low-Altitude Air-to-Air Channel Modeling over Open Area
International Journal of Antennas and Propagation, 2022 Aerial communication is very flexible due to almost no restrictions on geographical conditions. In recent years, with the development and application of the unmanned aerial vehicle, the air-to-air communication attracts dense interests from the ...
Zaixue Wei, Qipeng Tang
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Optimum Averaging of Superimposed Training Schemes in OFDM Under Realistic Time-Variant Channels
IEEE Access, 2021 The current global bandwidth shortage in orthogonal frequency division multiplexing (OFDM)-based systems motivates the use of more spectrally efficient techniques.
Ignasi Pique Muntane +1 more
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A Time-Variant MIMO Channel Model Directly Parametrised from Measurements
EURASIP Journal on Wireless Communications and Networking, 2009 This paper presents the Random-Cluster Model (RCM), a stochastic time-variant, frequency-selective, propagation-based MIMO channel model that is directly parametrised from measurements. Using a fully automated algorithm, multipath clusters are identified
Nicolai Czink +4 more
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IEEE Access, 2017 Spatial modulation utilizes the diversity of multiple-input multiple-output channel to improve the spectral efficiency. In time-variant wireless channels, its performance degrades due to the inaccuracy of channel estimation (CE).
Ziyuan Sha +3 more
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A 3D Non-Stationary Channel Model with Moving Mobile Station in Rectangular Tunnel
International Journal of Antennas and Propagation, 2019 This paper presents a three-dimensional (3D) geometry-based stochastic model (GBSM) for capturing the non-stationarity of radio channel at 1.8 GHz in a rectangular tunnel.
Zhicheng Ren +4 more
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