Results 21 to 30 of about 8,316 (179)

On daily interpolation of precipitation backed with secondary information [PDF]

open access: yes, 2010
This paper investigates the potential impact of secondary information on rainfall mapping applying Ordinary Kriging. Secondary information tested is a natural area indicator, which is a combination of topographic features and weather conditions.
Ahrens, Bodo, Krähenmann, Stefan
core   +2 more sources

Evaluation of Clipping and Filtering-Based PAPR Reduction in OFDM System

open access: yesJournal of Electrical, Electronics and Informatics, 2017
This paper investigates clipping and filtering techniques in reducing peak average power ratio (PAPR) of Orthogonal Frequency Division Multiplexing (OFDM) system.
N. M. A. E. D. Wirastuti   +3 more
doaj   +1 more source

Low complexity hybrid SLM for PAPR mitigation for ACO OFDM

open access: yesICT Express, 2022
The high peak to average power ratio (PAPR) is the main challenge facing asymmetrically clipped optical (ACO) orthogonal frequency division multiplexing (OFDM).
Roland Niwareeba   +2 more
doaj   +1 more source

LSTM-Autoencoder Deep Learning Technique for PAPR Reduction in Visible Light Communication

open access: yesIEEE Access, 2022
Visible light communication (VLC) is a relatively new wireless communication technology that allows for high data rate transfer. Because of its capability to enable high-speed transmission and eliminate inter-symbol interference, orthogonal frequency ...
Abdelfatah Mohamed   +3 more
doaj   +1 more source

Analytical Modeling of Interference Aware Power Control for the Uplink of Heterogeneous Cellular Networks [PDF]

open access: yes, 2016
Inter-cell interference is one of the main limiting factors in current Heterogeneous Cellular Networks (HCNs). Uplink Fractional Power Control (FPC) is a well known method that aims to cope with such limiting factor as well as to save battery live.
Aguayo-Torres, Mari Carmen   +3 more
core   +2 more sources

A Multi-Carrier Waveform Design for 5G and beyond Communication Systems

open access: yesMathematics, 2020
The next generation communication network (NGCN) is expected to provide higher spectral efficiency, low latency, large throughput and massive machine-to-machine type communications. In this regard, the design of the multi-carrier waveform (MCW) is posing
Imran Baig   +4 more
doaj   +1 more source

PAPR Reduction in Optical OFDM Using Lexicographical Permutations With Low Complexity

open access: yesIEEE Access, 2022
Efficient utilization of the spectrum, increased resilience to inter-symbol interference (ISI) and simpler channel equalization are becoming important considerations in the design of wireless communication systems including visible light communication ...
Roland Niwareeba   +2 more
doaj   +1 more source

SUPPRESSED CARRIER FREQUENCY DIVISION MULTIPLEXING FOR INDOOR OPTICAL WIRELESS COMMUNICATION

open access: yesICTACT Journal on Communication Technology, 2021
Asymmetrically clipped orthogonal frequency division multiplexing (ACO-OFDM) is one of the optical modulation techniques for indoor optical wireless communication systems (OWC) to enable intensity (IM) modulation and direct detection (DD). As compared to
Jayasudha Koti, B K Mishra
doaj   +1 more source

Study on PAPR Reduction Based on Correlation of Chaotic Sequences [PDF]

open access: yesJisuanji kexue, 2022
After analyzing the main techniques to reduce the peak to average power ratio (PAPR),a partial transmission sequence method (CL-PTS) based on low correlation of chaotic sequences is proposed to solve the problem that the reduction effect is gene-rally ...
ZHAO Geng, WANG Chao, MA Ying-jie
doaj   +1 more source

Impact of radio resource allocation and pulse shaping on PAPR of SC-FDMA signals [PDF]

open access: yes, 2007
"Single Carrier Frequency Division Multiple Access" (SC-FDMA) is a strong candidate for uplink transmissions in the 3G Long Term Evolution (LTE) standard.
Armour, SMD, Huang, G, Nix, AR
core   +2 more sources

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