Výsledky vyhledávání - "Moïse Djoko-Kouam"

Akademický článek

Application of a Channel Estimation Algorithm to Spectrum Sensing in a Cognitive Radio Context

Autor: Vincent Savaux, Moïse Djoko-Kouam, Yves Louët, Alexandre Skrzypczak

Publikováno v: International Journal of Antennas and Propagation, Vol 2014 (2014)

This paper deals with spectrum sensing in an orthogonal frequency division multiplexing (OFDM) context, allowing an opportunistic user to detect a vacant spectrum resource in a licensed band. The proposed method is based on an iterative algorithm use

Externí odkaz: https://doaj.org/article/24fa3cb527ff4866ae6e304b789009d0

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Convergence analysis of a joint signal‐to‐noise ratio and channel estimator for frequency selective channels in orthogonal frequency division multiplexing context

Autor: Alexandre Skrzypczak, Yves Louet, Vincent Savaux, Moïse Djoko-Kouam

Publikováno v: IET Signal Processing. 8:693-701

In this article, the authors study the convergence of an iterative algorithm for the joint estimation of the signal-to-noise ratio (SNR) and the transmission channel in orthogonal frequency division multiplexing context. At each step of the algorithm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d98701a49d1065da7e0999f4233aa836
https://doi.org/10.1049/iet-spr.2013.0407

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Preamble-Based LMMSE Channel Estimation in OFDM/OQAM Modulation

Autor: Vincent Savaux, Yves Louet, Ludovic Caro, Moïse Djoko-Kouam, Denys Boiteau

Publikováno v: 81st Vehicular Technology Conference (VTC Spring)
81st Vehicular Technology Conference (VTC Spring), May 2015, Glasgow, United Kingdom. ⟨10.1109/vtcspring.2015.7146025⟩
VTC Spring

This paper presents a preamble-based linear minimum mean square error (LMMSE) estimation technique for filter bank multicarrier (FBMC) modulations. Orthogonal frequency division multiplex (OFDM) systems have been extensively used in digital communica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee8255050ad9d979d75fc8537f3c9ccd
https://hal.archives-ouvertes.fr/hal-01110573

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Effect of polynomial interpolations on the estimation performance of a frequency-selective Rayleigh channel in orthogonal frequency division multiplexing systems

Autor: Alexandre Skrzypczak, Yves Louet, Moïse Djoko-Kouam, Vincent Savaux

Publikováno v: IET Signal Processing
IET Signal Processing, Institution of Engineering and Technology, 2015, 9 (1), pp.97-109. ⟨10.1049/iet-spr.2014.0053⟩
IET Signal Processing, 2015, 9 (1), pp.97-109. ⟨10.1049/iet-spr.2014.0053⟩

International audience; In this paper, the authors provide an analytical expression of the mean square error (MSE) and the bit error rate (BER) lower bound of an orthogonal frequency division multiplexing signal transmission over a multipath Rayleigh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afea7e73af28aaab430119915b2c6c6d
https://hal.archives-ouvertes.fr/hal-01122211/document

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Application of a Channel Estimation Algorithm to Spectrum Sensing in a Cognitive Radio Context

Autor: Moïse Djoko-Kouam, Yves Louet, Vincent Savaux, Alexandre Skrzypczak

Publikováno v: International Journal of Antennas and Propagation, Vol 2014 (2014)
International Journal of Antennas and Propagation
International Journal of Antennas and Propagation, Hindawi Publishing Corporation, 2014, 2014, Article ID 506457, 13 p. ⟨10.1155/2014/506457⟩
International Journal of Antennas and Propagation, 2014, 2014, Article ID 506457, 13 p. ⟨10.1155/2014/506457⟩

International audience; This article deals with spectrum sensing in an orthogonal frequency division multiplexing (OFDM) context, allowing an opportunistic user to detect a vacant spectrum resource in a licensed band. The proposed method is based on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2ffc73cb239bd696045d1c2adb66787
https://doaj.org/article/24fa3cb527ff4866ae6e304b789009d0

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Picture Quality Prediction in Image Processing

Autor: Vincent Savaux, Geoffroy Cormier, Moïse Djoko-Kouam, Yves Louet, Jean-Marc Laferté, Guy Carrault, Alexandre Skrzypczak

Publikováno v: Lecture Notes in Computer Science ISBN: 9783319079974
ICISP
Image and Signal Processing
International Conference on Image and Signal Processing-ICISP 2014
International Conference on Image and Signal Processing-ICISP 2014, Jun 2014, Cherbourg, France. pp.358-366, ⟨10.1007/978-3-319-07998-1_41⟩

International audience; Interpolations are among the most important tools for image processing. However, whether they are used for image compression and reconstruction purposes or for the increase of the image resolution along vertical, horizontal or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63d77076668c73b22942f7a82c2af29b
https://doi.org/10.1007/978-3-319-07998-1_41

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Artificial Channel Aided LMMSE Estimation for Time-Frequency Selective Channels in OFDM Context

Autor: Alexandre Skrzypczak, Yves Louet, Moïse Djoko-Kouam, Vincent Savaux

Publikováno v: Signal Processing
Signal Processing, 2013, 93 (9), pp.2369-2380. ⟨10.1016/j.sigpro.2013.03.006⟩
Signal Processing, Elsevier, 2013, 93 (9), pp.2369-2380. ⟨10.1016/j.sigpro.2013.03.006⟩

International audience; This paper proposes a linear minimum mean square error-based (LMMSE) channel estimation method, which allows avoiding the necessary knowledge of the channel covariance matrix or its estimation. To do so, a perfectly tunable fi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79006dbe82215d0ab55904457c32e6bb
https://hal-centralesupelec.archives-ouvertes.fr/hal-00830148

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Minimum mean-square-error expression of LMMSE channel estimation in SISO OFDM systems

Autor: Alexandre Skrzypczak, Yves Louet, Moïse Djoko-Kouam, Vincent Savaux

Publikováno v: Electronics Letters
Electronics Letters, 2013, 49 (18), pp.1152-1154. ⟨10.1049/el.2013.1993⟩
Electronics Letters, IET, 2013, 49 (18), pp.1152-1154. ⟨10.1049/el.2013.1993⟩

International audience; An expression of the minimum mean square error (MMSE) of the linear MMSE channel estimation is given in the case of a non-invertible channel covariance matrix, as in single-input single-output (SISO) OFDM system. A matrix expr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35372210a06c16d3e8d11e6328d2ad53
https://hal-centralesupelec.archives-ouvertes.fr/hal-00858869/file/ELL-2013-1993-PROOF.pdf

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Application of a joint and iterative MMSE-based estimation of SNR and frequency-selective channel for OFDM systems

Autor: Moïse Djoko-Kouam, Vincent Savaux, Alexandre Skrzypczak, Yves Louet

Publikováno v: EURASIP Journal on Advances in Signal Processing
EURASIP Journal on Advances in Signal Processing, SpringerOpen, 2013, 2013 (18), ⟨10.1186/10.1186/1687-6180-2013-128⟩
EURASIP Journal on Advances in Signal Processing, 2013, 2013 (18), ⟨10.1186/10.1186/1687-6180-2013-128⟩

International audience; This article presents an iterative minimum mean square error- (MMSE-) based method for the joint estimation of signal-to-noise ratio (SNR) and frequency-selective channel in an orthogonal frequency division multiplexing (OFDM)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3f5151fc5595818d635ed226f379bb4
https://doi.org/10.1186/1687-6180-2013-128

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Near LMMSE channel estimation performance with artificial channel at receiver for OFDM systems

Autor: Moïse Djoko-Kouam, Yves Louet, Alexandre Skrzypczak, Vincent Savaux

Publikováno v: SPAWC
Proceedings of the 2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications
SPAWC 2012
SPAWC 2012, Jun 2012, Cseme, Turkey. pp.545-549, ⟨10.1109/SPAWC.2012.6292968⟩

International audience; This paper proposes a LMMSE-based channel estimator which, unlike the classical LMMSE estimator, does not require the covariance matrix of the channel nor its estimation. Actually, we add at the receiver side a fully adjustabl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7781d15822d7eef7d0f29680a0b93c5
https://doi.org/10.1109/spawc.2012.6292968

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