Results 31 to 40 of about 21,457 (150)
Applied Sciences, 2020 Faster-than-Nyquist (FTN) signaling is regarded as a potential candidate for improving data rate and spectral efficiency of 5G new radio (NR). However, complex detectors have to be utilized to eliminate the inter symbol interference (ISI) introduced by ...
Yaqiu Peng, Mingqi Li
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Empirical Brightness Control and Equalization of Mars Context Camera Images
Earth and Space Science, 2020 The Mars Reconnaissance Orbiter (MRO) spacecraft has been in orbit around Mars since March 2006. The Context Camera (CTX) on MRO has returned over 115,000 images of the planet at approximately 5–6 m per pixel, providing nearly global coverage.
Stuart J. Robbins +2 more
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Nonlinear error modified equalization algorithm in high-order modulation of satellite communication
Tongxin xuebao, 2017 Aiming at the larger computation and the slower speed of nonlinear error compensation of traditional equalization algorithms,the fast nonlinear error equalization algorithm with amplitude and phase separation was constructed.It combined the feedback ...
Cheng-kai TANG +2 more
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Pre-kompensasi Respon Saluran Transmisi pada Jaringan Akses Multimedia ADSL 1,6 Mbps
Journal of Mathematical and Fundamental Sciences, 2019 Sari. Berkembangnya pola kehidupan masyarakat semakin meningkatkan kebutuhan akan layanan yang mudah dan cepat, seperti jaringan akses multimedia. Salah satu kelompok sistem xDSL yang merupakan teknologi jaringan akses alternative adalah 16-QAM-ADSL ...
Suhono H. Supangkat, Eru P.
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A Low-complexity Successive Detection Method for OFDM Systems over Doubly Selective Channels
Journal of Communications Software and Systems, 2008 For OFDM systems, the time variation of a multipath channel results in inter-carrier interference (ICI). It leads to performance degradations. In reducing the problem, current successive detection methods cost very high computationalcomplexities.
Chih-Liang Chen, Sau-Gee Chen
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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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Li-Ion Battery Active–Passive Hybrid Equalization Topology for Low-Earth Orbit Power Systems
EnergiesThe lithium-ion battery equalization system is a critical component in Low-Earth Orbit (LEO) satellite power supply systems, ensuring the consistency of battery cells, maximizing the utilization of battery pack capacity, and enhancing battery reliability
Lin Zhu +6 more
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MicromachinesTo achieve higher visible light communication (VLC) traffic capacity, using the wide bandwidth light-emitting diode (LED) and spectral efficiency modulation signal, is currently the most commonly used method.
Yuan-Zeng Lin +3 more
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Adaptive Zero-Padding OFDM over Frequency-Selective Multipath Channels
EURASIP Journal on Advances in Signal Processing, 2004 We present a novel bandwidth (BW) efficient orthogonal frequency division multiplexing (OFDM) scheme with adaptive zero-padding (AZP-OFDM) for wireless transmission. Redundancy issues in OFDM based on cyclic prefix (CP), zero-padding (ZP), as well as no
Wang Neng, Blostein Steven D
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GA Based Estimation of Sparse MIMO Channels with Superimposed Training
Elektronika ir Elektrotechnika, 2018 Multiple-input multiple-output (MIMO) techniques are foreseen to play a vital role in future 5G cellular networks. This paper presents a novel approach that employs genetic algorithm (GA) to estimate the sparse uplink MIMO channels using superimposed ...
Babar Mansoor +4 more
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