Results 31 to 40 of about 10,890,806 (175)
PAPR reduction technique for FBMC based visible light communication systems
IET Communications, Volume 16, Issue 15, Page 1807-1814, September 2022., 2022 Abstract One of the critical challenges in multicarrier‐based systems is peak to average power ratio (PAPR). Recently, Filter Bank Multicarrier (FBMC) is proved to be a promising candidate that can replace the traditional orthogonal multiplexing division (OFDM) scheme due to its better spectral efficiency, reducing both inter‐channel interference (ICI)
Gerges M. Salama +7 more
wiley +1 more source
PAPR reduction of OFDM systems using H‐SLM method with a multiplierless IFFT/FFT technique
ETRI Journal, Volume 44, Issue 3, Page 379-388, June 2022., 2022 Abstract This study proposes a novel low‐complexity algorithm for computing inverse fast Fourier transform (IFFT)/fast Fourier transform (FFT) operations in binary phase shift keying‐modulated orthogonal frequency division multiplexing (OFDM) communication systems without requiring any twiddle factor multiplications.
Namitha A. Sivadas
wiley +1 more source
State solutions for distribution systems and switching event using a neural network
IET Generation, Transmission &Distribution, Volume 16, Issue 1, Page 71-83, January 2022., 2022 Abstract Power flow calculations are an essential stage in many planning and control applications for distribution systems.To use these in control applications, however, the calculation time needs to be improved, and this can be done by the use of a trained ANN.
Arbel Yaniv +3 more
wiley +1 more source
Boosted PTS Method with Mu-Law Companding Techniques for PAPR Reduction in OFDM Systems
Wireless personal communications, 2021 This paper proposes an enhanced PAPR reduction technique which combines an enhanced PTS method with Mu-Law companding. The enhanced PTS method improves performances in both the partitioning and phase rotation steps.
Zeyid T. Ibraheem +5 more
semanticscholar +1 more source
Performance Analysis of the Two-Piecewise Linear Companding Technique on Filtered-OFDM Systems
IEEE Access, 2021 Filtered orthogonal frequency division multiplexing (F-OFDM) is one of the most prominent waveform candidates when it comes to fifth-generation (5G) wireless communication and beyond.
Mishal Al-Gharabally +2 more
doaj +1 more source
Direct processing of mpeg audio using companding and BFP techniques [PDF]
2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011 We present techniques for processing MPEG-audio encoded signals during the decoding process, using efficient fixed-point arithmetic operations. A large signal-to-quantization-noise-ratio is achieved over a large range of input levels. By taking advantage of MPEG audio built-in properties, quantization distortion at the outputs of our systems is kept ...
Vezyrtzis, Christos +3 more
openaire +2 more sources
AN IMPROVED PAPR REDUCTION TECHNIQUE FOR UNIVERSAL FILTER MULTI-CARRIER MODULATION [PDF]
Acta Electrotechnica et Informatica, 2018 Universal Filter Multi-Carrier (UFMC) modulation is a potential candidate for next generation wireless communication due to its advantages like better sub carrier separation and less complexity.
Pooja RANI, Silki BAGHLA, Himanshu MONGA
doaj +1 more source
Companding technique for high dynamic range measurements using Gafchromic films [PDF]
Medical Physics, 2011 Purpose:To introduce a methodology to perform dose measurements using Gafchromic films which can span several decades of dose levels.Methods:The technique is based on a rescaling approach using different films irradiated at different dose levels. This is combined with a registration protocol correcting positioning and scaling factors for each film. The
Van den Heuvel, Frank +2 more
openaire +3 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
doaj +1 more source
Root-Based Nonlinear Companding Technique for Reducing PAPR of Precoded OFDM Signals
IEEE Access, 2018 Orthogonal frequency division multiplexing (OFDM) signals are characteristically independent and identically distributed Gaussian random variables that follow Rayleigh distribution. The signals also exhibit high peak-to-average power ratio (PAPR) problem
Kelvin Anoh +3 more
doaj +1 more source