Results 21 to 30 of about 322 (180)
A Novel Companding Technique to Reduce High Peak to Average Power Ratio in OFDM Systems
IEEE Access, 2021 The reduction of the high peak-to-average-power ratio (PAPR) is important to the efficiency of the orthogonal frequency division multiplexing (OFDM) technique.
Abdulwahid Mohammed +3 more
doaj +1 more source
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
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
Boosted PTS Method with Mu-Law Companding Techniques for PAPR Reduction in OFDM Systems [PDF]
, 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.
Fazea, Yousef +5 more
core +1 more source
, 2022 In this paper, a hybrid approach using clipping and companding techniques is introduced to reduce the peak to average power ratio (PAPR) of orthogonal frequency division multiplexing based differential chaos shift keying (OFDM-DCSK), which is the major ...
Sajjad Razzaq Abdulridha +3 more
core +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
Performance Analysis of Hybrid Peak to Average Power Ratio Reduction Techniques in 5G UFMC Systems
IEEE Access, 2019 The universal filtered multi-carrier (UFMC) technique has been proposed as a prominent waveform candidate for fifth generation (5G) communication techniques.
Ali F. Almutairi +2 more
doaj +1 more source