Results 21 to 30 of about 132,237 (249)
IEEE Access, 2019 Transmission in non-line-of-sight (NLOS) conditions has a poor throughput in device-to-device (D2D) communications. In order to achieve high throughput, adaptive modulation has been selected as a spectrally-efficient transmission technology.
Fan Yang +7 more
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IEEE Access, 2019 Latency, error vector magnitude (EVM) and compression ratio (CR) are performance evaluation factors of IQ data compression. The purposes of IQ data compression are to minimize the latency, EVM and to maximize the CR.
Jewon Lee, Eunhee Hyun, Joon-Young Jung
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Error vector magnitude relation to magnitude andphase distortionin 8-PSK systems
Electronics Letters, 2001 Distortion in 8-PSK systems is a consequence of magnitude and phase disturbances. This work investigates the effects of such distortions (either isolated or combined) due to Gaussian bandpass noise, through analytical and simulation studies. Analytical expressions are derived and analytical-based results, relating error vector magnitude to symbol error
J.L. Pinto, I. Darwazeh
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Linear Regression vs. Deep Learning for Signal Quality Monitoring in Coherent Optical Systems
IEEE Photonics Journal, 2022 Error vector magnitude (EVM) is a metric for assessing the quality of m-ary quadrature amplitude modulation (mQAM) signals. Recently proposed deep learning techniques, e.g., feedforward neural networks (FFNNs) -based EVM estimation scheme leverage fast ...
Yuchuan Fan +11 more
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Data, 2021 Global and regional positional accuracy assessment is of the highest importance for any satellite navigation system, including the Global Positioning System (GPS).
Davor Šakan +3 more
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On the Equalization of an OFDM-Based Radio-over-Fiber System Using Neural Networks [PDF]
Radioengineering, 2017 In this study the impact of a Radio-over-Fiber (RoF) subsystem on the performance of Orthogonal Frequency Division Multiplexing (OFDM) system is evaluated.
L. Safari +3 more
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Nondata-aided error vector magnitude based adaptive modulation over rapidly time-varying channels
Tongxin xuebao, 2017 A novel nondata-aided error vector magnitude based adaptive modulation(NDA-EVM-AM) was proposed to solve the problem of lower spectral efficiency over rapidly time-varying wireless channels.Namely,NDA-EVM was considered as a metric to reflect the rapid ...
Fan YANG +5 more
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Applied Sciences, 2021 This paper presents an experimental realization of multiband 5G new radio (NR) optical front haul (OFH) based radio over fiber (RoF) system using digital predistortion (DPD).
Muhammad Usman Hadi +4 more
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Error Vector Magnitude Analysis of Fading SIMO Channels Relying on MRC Reception [PDF]
IEEE Transactions on Communications, 2016 We analytically characterize the data-aided error vector magnitude (EVM) performance of a single-input multiple-output (SIMO) communication system relying on maximal ratio combining (MRC) having either independent or correlated branches that are nonidentically distributed.
Varghese Antony Thomas +5 more
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IEEE Access, 2021 The realization and analysis of an implemented V-band six-port demodulator, operating over 60 GHz band, are presented in this paper. The performance of the design in real-time high-data-rate wireless data transmission is strongly proved using different ...
Mansoor Dashti Ardakani +1 more
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