Results 11 to 20 of about 334,418 (265)

A Novel Low Complexity Faster-than-Nyquist (FTN) Signaling Detector for Ultra High-Order QAM

open access: yesIEEE Open Journal of the Communications Society, 2021
Faster-than-Nyquist (FTN) signaling is a promising non-orthogonal pulse modulation technique that can improve the spectral efficiency (SE) of next generation communication systems at the expense of higher detection complexity to remove the introduced ...
Ahmed Ibrahim   +2 more
doaj   +1 more source

Low-Complexity Detection Algorithms Applied to FTN-GFDM Systems

open access: yesIEEE Access, 2022
New applications for mobile networks are driving up data rates, requiring new solutions to meet the demand for throughput. In urban and densely populated areas, massive multiple-input multiple-output, high bands in millimeter waves, and ultra-dense ...
Mariana B. Mello, Luciano L. Mendes
doaj   +1 more source

Entropy estimation in bidimensional sequences

open access: yesPhysical Review E, 2022
10 pages, 7 ...
F. N. M. de Sousa Filho   +2 more
openaire   +3 more sources

Blind Estimation of Self-Synchronous Scrambler in DSSS Systems

open access: yesIEEE Access, 2021
Self-synchronous scramblers are more difficult to blindly estimate than synchronous scramblers because their input sequence affects the state of the scrambler’s linear feedback shift register.
Dongyeong Kim, Dongweon Yoon
doaj   +1 more source

The accuracy of DNA sequences: Estimating sequence quality [PDF]

open access: yesGenomics, 1992
In this paper we describe a method for the statistical reconstruction of a large DNA sequence from a set of sequenced fragments. We assume that the fragments have been assembled and address the problem of determining the degree to which the reconstructed sequence is free from errors, i.e., its accuracy.
G A, Churchill, M S, Waterman
openaire   +2 more sources

Compressed Sensing Channel Estimation Based on Heterogeneous Pilot 60 GHz System [PDF]

open access: yesJisuanji gongcheng, 2016
The compressed sensing theory and its channel estimation algorithm are researched in this paper.Combined with the characteristics of 60 GHz system pilot structure,the heterogeneous pilot compressed sensing channel estimation algorithm is proposed in this
CHEN Kun,ZHAO Yingxin,WU Honga,b,WANG Xiaomina,b,LIU Yonga,b,WANG Qiqia,b,TANG Rana,b,CI Chenga,b
doaj   +1 more source

Object Recognition at Higher Regions of the Ventral Visual Stream via Dynamic Inference

open access: yesFrontiers in Computational Neuroscience, 2020
The ventral visual stream (VVS) is a fundamental pathway involved in visual object identification and recognition. In this work, we present a hypothesis of a sequence of computations performed by the VVS during object recognition.
Siamak K. Sorooshyari   +2 more
doaj   +1 more source

Entropy estimation of symbol sequences [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 1996
We discuss algorithms for estimating the Shannon entropy h of finite symbol sequences with long range correlations. In particular, we consider algorithms which estimate h from the code lengths produced by some compression algorithm. Our interest is in describing their convergence with sequence length, assuming no limits for the space and time ...
Schürmann, Thomas, Grassberger, Peter
openaire   +3 more sources

Relationship estimation from whole-genome sequence data. [PDF]

open access: yesPLoS Genetics, 2014
The determination of the relationship between a pair of individuals is a fundamental application of genetics. Previously, we and others have demonstrated that identity-by-descent (IBD) information generated from high-density single-nucleotide ...
Hong Li   +12 more
doaj   +1 more source

Blind Estimation of Spreading Code Sequence of QPSK-DSSS Signal Based on Fast-ICA

open access: yesInformation, 2023
Most of the existing estimation methods of spreading code sequence are not suitable for the QPSK-DSSS. We propose a spreading code sequence estimation method based on fast independent component analysis (Fast-ICA). It mainly includes signal preprocessing,
Lu Xu, Xiaxia Liu, Yijia Zhang
doaj   +1 more source

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