Results 1 to 10 of about 57,448 (230)

Particle smoothing techniques with turbo principle for MIMO systems [PDF]

open access: yes2003 4th IEEE Workshop on Signal Processing Advances in Wireless Communications - SPAWC 2003 (IEEE Cat. No.03EX689), 2003
We address the problem of space-time communications in the context where the turbo principle is used in order to improve the robustness of the transmission. Recovering the sequence of emitted symbols in the wide-band context is known to lead to a computationally very challenging problem.
Andrieu, C, McGeehan, JP, Piechocki, RJ
core   +4 more sources

Soft-Decision-Driven Sparse Channel Estimation and Turbo Equalization for MIMO Underwater Acoustic Communications [PDF]

open access: yesIEEE Access, 2018
Multi-input multi-output (MIMO) detection based on turbo principle has been shown to provide a great enhancement in the throughput and reliability of underwater acoustic (UWA) communication systems.
Youwen Zhang   +2 more
doaj   +3 more sources

Iterative channel estimation based on the Turbo principle for UWB system

open access: yesTongxin xuebao, 2008
An iterative channel estimation algorithm and receiver structures based on Turbo principle were proposed for estimating channel parameters in a TH-UWB system under the realistic UWB channel model from IEEE 802.15.
TENG Peng-wei1   +2 more
doaj   +3 more sources

Making acute ischemic stroke thrombi visible in MRI imaging [PDF]

open access: yesScientific Reports
Knowledge of thrombus behavior and visualization on MRI in acute ischemic stroke is less than optimal. However, MRI sequences could be enhanced based on the typical T1 and T2 relaxation times of the target tissues, which mainly determine their signal ...
Aglaé Velasco Gonzalez   +9 more
doaj   +2 more sources

Application of Gas Foil Bearings in China

open access: yesApplied Sciences, 2021
Gas foil bearing has been widely used in high-speed turbo machinery due to its oil-free, wide temperature range, low cost, high adaptability, high stability and environmental friendliness.
Yu Hou   +5 more
doaj   +1 more source

Spatially coupled turbo codes: Principles and finite length performance [PDF]

open access: yes2014 11th International Symposium on Wireless Communications Systems (ISWCS), 2014
In this paper, we give an overview of spatially coupled turbo codes (SC-TCs), the spatial coupling of parallel and serially concatenated convolutional codes, recently introduced by the authors. For presentation purposes, we focus on spatially coupled serially concatenated codes (SC-SCCs).
Graell i Amat, Alexandre   +2 more
openaire   +4 more sources

Soft-Decision-Driven Channel Estimation for Pipelined Turbo Receivers [PDF]

open access: yes, 1999
We consider channel estimation specific to turbo equalization for multiple-input multiple-output (MIMO) wireless communication. We develop a soft-decision-driven sequential algorithm geared to the pipelined turbo equalizer architecture operating on ...
Yoon, Daejung, Moon, Jaekyun
core   +2 more sources

Multiple-Input-Multiple-Output Filtered Multitone Time Reversal Acoustic Communications Using Direct Adaptation-Based Turbo Equalization

open access: yesSensors, 2023
This paper proposes using direct adaptation (DA)-based turbo equalization in multiple-input-multiple-output (MIMO) filtered multitone (FMT) time reversal (TR) acoustic communications to jointly suppress noise, residual co-channel interference (CCI) and ...
Lin Sun, Haisen Li
doaj   +1 more source

Cryptanalysis Knapsack Cipher Using Artificial Immune System [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2009
In this work, the use of an artificial immune system (AIS ) in  cryptanalysis  is explored. This AIS uses the clonal selection principle for the cryptanalysis of knapsack cipher.
Eman Al-Obaidy
doaj   +1 more source

Denoising-Based Turbo Compressed Sensing

open access: yesIEEE Access, 2017
Turbo compressed sensing (Turbo-CS) is an efficient iterative algorithm for sparse signal recovery with partial orthogonal sensing matrices. In this paper, we extend the Turbo-CS algorithm to solve compressed sensing problems involving a more general ...
Zhipeng Xue, Junjie Ma, Xiaojun Yuan
doaj   +1 more source

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