PAPR Reduction in NC-OFDM/OQAM System using Nonlinear Companding Transform [PDF]
, 2019 278-281Since the inherent higher Peak-to-Average Power Ratio (PAPR) in Non- Continous Orthogonal Frequency Division Multiplexing with Offset Quadrature Amplitude Modulation (NC-OFDM/OQAM) is higher than that of conventional NC-OFDM systems, a novel ...
Sairam, M Satya, Renuka, N
core
A Novel Reversible Watermarking Method based on Adaptive Thresholding and Companding Technique
, 2011 Embedding and extraction of a secret information as well as the restoration of the original un-watermarked image is highly desirable in sensitive applications like military, medical, and law enforcement imaging.
Nisar Ahmed Memon
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New Hybrid Schemes for PAPR Reduction in OFDM Systems
, 2020 The 3rd Generation Partnership Project (3GPP) introduced LTE to meet increasingly demands for communication services with high speed and quality. LTE uses OFDM in the form of OFDMA in the downlink and SCFDMA in the uplink combined with MIMO offering high
saleem nokaiee (8722494) +1 more
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Non-Linear Companding Transform aided MIMO-OFDM Systems
IOSR Journal of Electronics and Communication Engineering, 2014 In this paper a new non-linear companding transform (NCT) technique based on inverse hyperbolic cosine function is proposed and implemented along with new Intercarrier interference reduction technique to improve the performance of Multi Input and Multi Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system in terms of Peak-to-Average ...
K. Srinivasa Rao, B. Prabakararao
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A Novel Hybrid Precoding-Companding Technique for Peak-to-Average Power Ratio Reduction in 5G and beyond. [PDF]
Sensors (Basel), 2021 Mounir M +4 more
europepmc +1 more source
A Companding Technique for PAPR Reduction of OFDM Systems
, 2017 [[abstract]]A companding technique using the hyperbolic tangent transform is proposed for reducing the peak-to-average-power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals.
HAO, Miin-Jong;LIAW, Chung-Ping
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A Joint Linearization/Companding Approach for Improving a CO-OFDM Transmitter
, 2015 International audience—The joint use of peak-to-average power ratio (PAPR) reduction and linearization via digital predistortion is investigated in this letter, with the view to improve the performances of coherent optical OFDM (CO-OFDM) systems ...
Tanguy, Noël +6 more
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Performance Comparison Analysis of Piecewise Linear companding for OFDM And WHT Precoded OFDM [PDF]
, 2017 Orthogonal Frequency Division Multiplexing (OFDM) is amalgamation of modulation and multiplexing, it helps to allow huge data rates for wireless applications with great spectrum efficiency.
Swamy Lakamana, Aravinda +1 more
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Reversible data hiding using integer wavelet transform and companding technique,” IWDW04, Korea
, 2004 : This paper presents a novel reversible data-embedding method for digital images using integer wavelet transform and companding technique. This scheme takes advantage of the Laplacian-like distribution of integer wavelet coefficients in high frequency ...
Yun Q. Shi +4 more
core
Underlying Security Transmission Design for Orthogonal Time Frequency Space (OTFS) Modulation. [PDF]
Sensors (Basel), 2022 Liang W, Liu X, Shi J, Li L, Hu J.
europepmc +1 more source