A Novel Hybrid Precoding-Companding Technique for Peak-to-Average Power Ratio Reduction in 5G and beyond [PDF]
Sensors, 2021 Several high-speed wireless systems use Orthogonal Frequency Division Multiplexing (OFDM) due to its advantages. 5G has adopted OFDM and is expected to be considered beyond 5G (B5G).
Mohamed Mounir +4 more
doaj +2 more sources
Low complexity hybrid algorithm for improving PAPR BER and PSD in OTFS under diverse channel conditions [PDF]
Scientific ReportsIn this study, the Peak-to-Average Power Ratio (PAPR) and Bit Error Rate (BER) performance in Orthogonal Time Frequency Space (OTFS) modulation with Non-Orthogonal Multiple Access (NOMA) over Rayleigh fading channels were investigated.
Arun Kumar +3 more
doaj +2 more sources
Performance evaluation of PAPR reduction in FBMC system using nonlinear companding transform
ICT Express, 2019 Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) is one of the best waveforms used in 5G communications. The FBMC is a multicarrier modulation system (MCM) which suffers from high peak to average power ratio (PAPR) causing
, Abdelhalim Zekry
exaly +3 more sources
On the selection of the best companding technique for PAPR reduction in OFDM systems
Journal of Information and Telecommunication, 2019 Orthogonal frequency division multiplexing (OFDM) is used in high data rate applications due to its ability to cope with frequency-selective channels. However, OFDM suffers from the high peak-to-average power ratio (PAPR) problem, which reduces the power
Mohamed Mounir
exaly +2 more sources
Graph-guided adaptive companding for PAPR reduction in power-domain NOMA systems. [PDF]
PLoS ONEPower-domain Non-Orthogonal Multiple Access (PD-NOMA) is a promising multiple-access technique for fifth-generation (5G) and beyond-fifth-generation (B5G/6G) wireless networks because of its ability to improve spectral efficiency, massive connectivity ...
Arun Kumar +4 more
doaj +2 more sources
Reversible Data Hiding for DICOM Image Using Lifting and Companding
Cryptography, 2019 In this work, a reversible watermarking technique is proposed for DICOM (Digital Imaging and Communications in Medicine) image that offers high embedding capacity (payload), security and fidelity of the watermarked image.
Amit Phadikar +2 more
exaly +3 more sources
PALM CLIPPING AND NONLINEAR COMPANDING TECHNIQUES BASED PAPR REDUCTION IN OFDM-DCSK SYSTEM
Journal of Engineering and Sustainable Development, 2021 The main drawback of the Orthogonal Frequency Division Multiplexing (OFDM) with Differential Chaos Shift Keying (DCSK) that is named (OFDM-DCSK) is the high Peak to Average Power Ratio (PAPR).
Sajjad R. Abdulridha, Fadhil S. Hasan
doaj +3 more sources
A Hybrid Companding and Clipping Scheme for PAPR Reduction in OFDM Systems
IEEE Access, 2021 Orthogonal frequency division multiplexing (OFDM) continues to be deployed in 5G communication systems and is likely to be used in beyond 5G (B5G) communication systems as well, due to its many advantages. However, one major drawback with OFDM systems is
Zhitong Xing +4 more
doaj +1 more source
Speech Technology Progress Based on New Machine Learning Paradigm. [PDF]
Comput Intell Neurosci, 2019 Speech technologies have been developed for decades as a typical signal processing area, while the last decade has brought a huge progress based on new machine learning paradigms. Owing not only to their intrinsic complexity but also to their relation with cognitive sciences, speech technologies are now viewed as a prime example of interdisciplinary ...
Delić V +8 more
europepmc +2 more sources
A hardware prototype of wideband high‐dynamic range analog‐to‐digital converter
IET Circuits, Devices &Systems, Volume 17, Issue 4, Page 181-192, July 2023., 2023 The authors present a hardware prototype of a high‐dynamic range analog‐to‐digital converter (ADC) where a folding operation enhances the dynamic range. The authors show sampling and perfect reconstruction of different classes of signals whose dynamic ranges are larger than that of ADC's dynamic range.
Satish Mulleti +5 more
wiley +1 more source