Analysis of Improved µ-Law Companding Technique for OFDM Systems [PDF]
, 2017 YesHigh Peak-to-Average-Power Ratio (PAPR) of transmitted signals is a common problem in broadband telecommunication systems using an orthogonal frequency division multiplexing (OFDM) modulation scheme, as it increases transmitter power consumption.
Abd-Alhameed, Raed A. +4 more
core +1 more source
On companding techniques for PAPR reduction in DCT SC-FDMA system in the presence of CFOs
Alexandria Engineering Journal, 2023 In the single carrier frequency division multiple access (SC-FDMA) system, the use of discrete cosine transform (DCT) instead of discrete Fourier transform (DFT) has shown improved bit error rate (BER) performance.
Naim Ben Ali +5 more
doaj +1 more source
A HYBRID TECHNIQUE FOR PAPR REDUCTION OF OFDM USING DHT PRECODING WITH PIECEWISE LINEAR COMPANDING [PDF]
ICTACT Journal on Communication Technology, 2016 Orthogonal Frequency Division Multiplexing (OFDM) is a fascinating approach for wireless communication applications which require huge amount of data rates.
Thammana Ajay, K. Murali Krishna
doaj
Throughput-Distortion Computation Of Generic Matrix Multiplication: Toward A Computation Channel For Digital Signal Processing Systems [PDF]
, 2011 The generic matrix multiply (GEMM) function is the core element of high-performance linear algebra libraries used in many computationally-demanding digital signal processing (DSP) systems.
Anastasia, Davide, Andreopoulos, Yiannis
core +2 more sources
Enhancement of Analytical OBR (Out of Band Radiation) and BER Calculation for Digital Au-dio-Video Broadcasting in Companded OFDM System using Non-Symmetric QAM/QPSK Tecniques [PDF]
, 2017 Companding transforms useful under assumption of infinite bandwidth. Under band limited conditions OBR parameter filters out. So bandwidth is a factor that decides the filter-ing out OBR on the performance of companded OFDM sys-tems.
Arora, P. K. (Prof) +2 more
core +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
Throughput Scaling Of Convolution For Error-Tolerant Multimedia Applications
, 2012 Convolution and cross-correlation are the basis of filtering and pattern or template matching in multimedia signal processing. We propose two throughput scaling options for any one-dimensional convolution kernel in programmable processors by adjusting ...
Anam, Mohammad Ashraful +1 more
core +1 more source
Performance improvement of a SOA-based coherent optical-OFDM transmission system via nonlinear companding transforms [PDF]
, 2015 International audienceCoherent-Optical OFDM systems are known to be sensitive to large peak-to-average power ratio (PAPR) at the transmitter output, due to nonlinear properties of some components involved in the transmission link.
Azou, Stéphane +3 more
core +2 more sources
CRLB for joint estimation of TDOA, phase, FDOA, and Doppler rate
The Journal of Engineering, Volume 2019, Issue 21, Page 7628-7631, November 2019., 2019 To avoid decline of FDOA estimation precision caused by relative Doppler companding, Doppler rate has to be considered and estimated jointly with TDOA, phase, and FDOA. However, CRLB of the joint estimation is still unclear. This study addresses on derivation of the CRLB. First, the joint estimation model is constructed.
Dexiu Hu +4 more
wiley +1 more source
Bit rates in audio source coding [PDF]
, 1992 The goal is to introduce and solve the audio coding optimization problem. Psychoacoustic results such as masking and excitation pattern models are combined with results from rate distortion theory to formulate the audio coding optimization problem.
Veldhuis, Raymond N.J.
core +3 more sources