Results 11 to 20 of about 6,730 (257)

Nonlinear Signal Estimation Using Semi-Blind Mutually Referenced Equalizers in Convolutive Mixture

open access: yesIEEE Access, 2023
Nonlinearity is a common source of signal and channel distortion in digital communication. In many circumstances, such distortions must be compensated by equalization algorithms or devices.
Abdulmajid Lawal   +2 more
doaj   +1 more source

Multi-objective model selection algorithm for online sequential ultimate learning machine

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
In order to improve the channel equalization, improve the control quality, and reduce the error of the target output of the online sequential learning machine, a multi-objective model selection algorithm is proposed based on feedback compensation and ...
Xinyuan Jin, Tao He, Yezhi Lin
doaj   +1 more source

Collaborative Blind Equalization for Time-Varying OFDM Applications Enabled by Normalized Least Mean and Recursive Square Methodologies

open access: yesIEEE Access, 2020
In this work, a collaborative blind equalization method for the orthogonal frequency division multiplexing (OFDM) signals in time-varying channels is presented.
Li Deng   +4 more
doaj   +1 more source

Equalization methods for Filter Bank Multicarrier OQAM

open access: yesWasit Journal of Engineering Sciences, 2023
Filter bank multi-carrier offset-quadrature amplitude modulation (FBMC OQAM) is a hot topic in 5G multi-carrier research. In order to achieve high data rates and reliable wireless communication, receiver channel equalization is required. This is because
Oras Faiz Kadhem   +2 more
doaj   +1 more source

A new joint channel equalization and estimation algorithm for underwater acoustic channels

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
Underwater acoustic channel (UAC) is one of the most challenging communication channels in the world, owing to its complex multi-path and absorption as well as variable ambient noise.
Bo Li   +3 more
doaj   +1 more source

Bayesian Equalization for LDPC Channel Decoding [PDF]

open access: yesIEEE Transactions on Signal Processing, 2012
We describe the channel equalization problem, and its prior estimate of the channel state information (CSI), as a joint Bayesian estimation problem to improve each symbol posterior estimates at the input of the channel decoder. Our approach takes into consideration not only the uncertainty due to the noise in the channel, but also the uncertainty in ...
Luis Salamanca   +2 more
openaire   +2 more sources

A Pre-equalization Method based on Prior Model in Underwater Optical Communication

open access: yesGuangtongxin yanjiu, 2021
Due to seawater scattering characteristics, Inter-Symbol Interference (ISI) will occur in underwater transmission, especially in poor transmission environment.
Lei ZHANG, Jun AO, Jun-Jie SHI
doaj   +1 more source

Efficient Channel Shortening Equalizer Design [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
Summary: Time-domain equalization is crucial in reducing channel state dimension in maximum likelihood sequence estimation and intercarrier and intersymbol interference in multicarrier systems. A time-domain equalizer (TEQ) placed in cascade with the channel produces an effective impulse response that is shorter than the channel impulse response.
Richard K. Martin   +3 more
openaire   +3 more sources

RIS-Enabled Wireless Channel Equalization: Adaptive RIS Equalizer and Deep Reinforcement Learning

open access: yesIEEE Open Journal of the Communications Society
Reconfigurable Intelligent Surfaces (RISs) offer a promising means of reshaping the wireless propagation environment, yet practical methods for configuring large passive arrays to achieve reliable signal equalization remain limited.
Gal Ben-Itzhak, Ender Ayanoglu
doaj   +1 more source

Sixth-Second Order Normalized Cumulant Blind Equalization Algorithm Based on Oversampling

open access: yesDianxin kexue, 2014
Most existing blind equalization algorithms rely on partial or complete channel identification, but the channel order estimation is always a difficult task.
Xiaoqin Zhang, Yongsheng Hu, Liyi Zhang
doaj   +2 more sources

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