The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
L'invention concerne un procédé d'estimation de covariance de canal à partir de la puissance du signal reçu en liaison montante pour un précodage d'émission en liaison descendante dans des systèmes sans fil à duplexage par répartition en fréquence (FDD) à entrées multiples et sorties multiples (MIMO). Contrairement à d'autres schémas de précodage MIMO, le schéma proposé ne nécessite pas de canal de rétroaction ni de symboles pilotes, c'est-à-dire que la connaissance de la covariance du canal est mise à disposition au niveau de l'émetteur de liaison descendante via une estimation directe à partir de la puissance du signal reçu en liaison montante. Cela conduit à une faible complexité et à une efficacité améliorée du système. Il est montré que le schéma proposé fonctionne mieux ou à égalité avec d'autres schémas pratiques et ne subit qu'une légère dégradation des performances par rapport aux systèmes ayant une parfaite connaissance de la covariance du canal.
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Mohd Hairi HALMI, Mohd Yusoff ALIAS, Teong Chee CHUAH, "Semi-Blind Channel Covariance Estimation for MIMO Precoding" in IEICE TRANSACTIONS on Fundamentals,
vol. E94-A, no. 2, pp. 833-837, February 2011, doi: 10.1587/transfun.E94.A.833.
Abstract: A method for estimating channel covariance from the uplink received signal power for downlink transmit precoding in multiple-input multiple-output (MIMO) frequency division duplex (FDD) wireless systems is proposed. Unlike other MIMO precoding schemes, the proposed scheme does not require a feedback channel or pilot symbols, i.e. knowledge of the channel covariance is made available at the downlink transmitter through direct estimation from the uplink received signal power. This leads to low complexity and improved system efficiency. It is shown that the proposed scheme performs better or on par with other practical schemes and only suffers a slight performance degradation when compared with systems with perfect knowledge of the channel covariance.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E94.A.833/_p
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@ARTICLE{e94-a_2_833,
author={Mohd Hairi HALMI, Mohd Yusoff ALIAS, Teong Chee CHUAH, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Semi-Blind Channel Covariance Estimation for MIMO Precoding},
year={2011},
volume={E94-A},
number={2},
pages={833-837},
abstract={A method for estimating channel covariance from the uplink received signal power for downlink transmit precoding in multiple-input multiple-output (MIMO) frequency division duplex (FDD) wireless systems is proposed. Unlike other MIMO precoding schemes, the proposed scheme does not require a feedback channel or pilot symbols, i.e. knowledge of the channel covariance is made available at the downlink transmitter through direct estimation from the uplink received signal power. This leads to low complexity and improved system efficiency. It is shown that the proposed scheme performs better or on par with other practical schemes and only suffers a slight performance degradation when compared with systems with perfect knowledge of the channel covariance.},
keywords={},
doi={10.1587/transfun.E94.A.833},
ISSN={1745-1337},
month={February},}
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TY - JOUR
TI - Semi-Blind Channel Covariance Estimation for MIMO Precoding
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 833
EP - 837
AU - Mohd Hairi HALMI
AU - Mohd Yusoff ALIAS
AU - Teong Chee CHUAH
PY - 2011
DO - 10.1587/transfun.E94.A.833
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E94-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2011
AB - A method for estimating channel covariance from the uplink received signal power for downlink transmit precoding in multiple-input multiple-output (MIMO) frequency division duplex (FDD) wireless systems is proposed. Unlike other MIMO precoding schemes, the proposed scheme does not require a feedback channel or pilot symbols, i.e. knowledge of the channel covariance is made available at the downlink transmitter through direct estimation from the uplink received signal power. This leads to low complexity and improved system efficiency. It is shown that the proposed scheme performs better or on par with other practical schemes and only suffers a slight performance degradation when compared with systems with perfect knowledge of the channel covariance.
ER -