Results 11 to 20 of about 10,985 (203)

Numerical analysis of UFMC and FBMC in wavelength conversion for radio over fiber systems using semiconductor optical amplifier

open access: yesAlexandria Engineering Journal, 2022
The 5G networks promise to use advanced access techniques and modulation formats to achieve new requirements of the huge number of users such as higher data, high speed, and low latency.
Yazan Alkhlefat   +2 more
doaj   +1 more source

Coded Adaptive Linear Precoded Discrete Multitone Over PLC Channel [PDF]

open access: yes, 2008
Discrete multitone modulation (DMT) systems exploit the capabilities of orthogonal subcarriers to cope efficiently with narrowband interference, high frequency attenuations and multipath fadings with the help of simple equalization filters.
Baudais, Jean-Yves   +3 more
core   +5 more sources

Frame design for 5G multicarrier modulations [PDF]

open access: yes2015 International Wireless Communications and Mobile Computing Conference (IWCMC), 2015
Orthogonal Frequency Division Multiplexing (OFDM) transmission technique has been considered for the 4G LTE-Advanced system because of its high performance and low complexity. In the new 5G scenario this type of modulation is not properly suited because of the additional requirements for very high spectral efficiency, low latency and low out-of-band ...
MOROSI, SIMONE   +4 more
openaire   +1 more source

Comparative Analysis of Optical Multicarrier Modulations: An Insight into Machine Learning-based Multicarrier Modulation

open access: yesGazi University Journal of Science, 2021
The performances of various optical multicarrier modulation schemes have been investigated in this work by comparatively analyzing the bit error rate response relative to the signal to noise ratio metric. The machine learning-based multicarrier modulation (MLMM) approach was proposed and adopted as a method to improve the bit error rate response of the
IBHAZE, Augustus   +2 more
openaire   +3 more sources

Peak to average power ratio reduction in NC–OFDM systems [PDF]

open access: yes, 2015
Non contiguous orthogonal frequency division multiplexing (NC-OFDM) is an efficient and adaptable multicarrier modulation scheme to be used in cognitive radio communications.
Ghafoor, Abdul   +2 more
core   +1 more source

A Coded Bit-Loading Linear Precoded Discrete Multitone Solution for Power Line Communication [PDF]

open access: yes, 2008
Linear precoded discrete multitone modulation (LP-DMT) system has been already proved advantageous with adaptive resource allocation algorithm in a power line communication (PLC) context.
Baudais, Jean-Yves   +3 more
core   +5 more sources

Robustness maximization of parallel multichannel systems [PDF]

open access: yes, 2010
Bit error rate (BER) minimization and SNR-gap maximization, two robustness optimization problems, are solved, under average power and bit-rate constraints, according to the waterfilling policy.
Baudais, Jean-Yves   +2 more
core   +6 more sources

A Unified Multicarrier Modulation Framework

open access: yesCoRR, 2016
Orthogonal frequency division multiplexing (OFDM) has been recently recognized as inadequate to meet the increased requirements of the next generation of communication systems. A number of alternative modulation solutions, based on the use of filter banks, have thus been proposed and are currently being considered as candidate waveforms for the ...
Konstantinos N. Maliatsos   +2 more
openaire   +2 more sources

Performance Analysis of Multicarrier Systems in the Presence of Smooth Nonlinearity

open access: yesEURASIP Journal on Wireless Communications and Networking, 2004
Most of the performance studies devoted to the analysis of multicarrier systems in the presence of nonlinear distortion assume that the multicarrier signal can be modeled as a random Gaussian process regardless of modulation format, guard interval ...
Zhidkov Sergey V
doaj   +2 more sources

Performance evaluation of PAPR reduction in FBMC system using nonlinear companding transform

open access: yesICT 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
Imad A. Shaheen   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy