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
É proposto um método para estimar a covariância de canal a partir da potência do sinal recebido no uplink para pré-codificação de transmissão no downlink em sistemas sem fio duplex por divisão de frequência (FDD) de múltiplas entradas e múltiplas saídas (MIMO). Ao contrário de outros esquemas de pré-codificação MIMO, o esquema proposto não requer um canal de feedback ou símbolos piloto, ou seja, o conhecimento da covariância do canal é disponibilizado no transmissor de downlink através da estimativa direta da potência do sinal recebido no uplink. Isso leva a baixa complexidade e maior eficiência do sistema. É mostrado que o esquema proposto tem desempenho melhor ou igual a outros esquemas práticos e sofre apenas uma ligeira degradação de desempenho quando comparado com sistemas com conhecimento perfeito da covariância do 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 -