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
Esta carta expande a interferometria de portadora de alta resolução de tempo (HTRCI) proposta anteriormente para estimar uma quantidade maior de informações de status do canal (CSI). HTRCI é baseado em um símbolo piloto tipo pente em OFDM e CSI para subportadoras nulas são interpoladas por processamento de sinal no domínio do tempo. A fim de utilizar tais subportadoras piloto nulas para aumentar o CSI estimável, elas geralmente devem ser separadas no domínio da frequência antes dos processos de estimativa e interpolação. A principal proposta é o seu esquema de separação em conjunto com o tratamento HTRCI do domínio temporal. Sua eficácia é verificada por uma descontaminação piloto no cenário de transmissão MIMO de duas células no downlink. O desempenho da taxa de erro binário (BER) pode ser melhorado em comparação com o HTRCI convencional e o preenchimento de zero (ZP), que substitui o alias da resposta ao impulso por zeros.
Kakeru MATSUBARA
Chiba University
Shun KUROKI
Chiba University
Koki ITO
Chiba University
Kazushi SHIMADA
Chiba University
Kazuki MARUTA
Tokyo Institute of Technology
Chang-Jun AHN
Chiba University
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Kakeru MATSUBARA, Shun KUROKI, Koki ITO, Kazushi SHIMADA, Kazuki MARUTA, Chang-Jun AHN, "Pilot De-Contamination by Modified HTRCI with Time-Domain CSI Separation for Two-Cell MIMO Downlink" in IEICE TRANSACTIONS on Fundamentals,
vol. E104-A, no. 9, pp. 1345-1348, September 2021, doi: 10.1587/transfun.2020EAL2124.
Abstract: This letter expands the previously proposed High Time Resolution Carrier Interferometry (HTRCI) to estimate a larger amount of channel status information (CSI). HTRCI is based on a comb-type pilot symbol on OFDM and CSI for null subcarriers are interpolated by time-domain signal processing. In order to utilize such null pilot subcarriers for increasing estimable CSI, they should generally be separated in frequency-domain prior to estimation and interpolation processes. The main proposal is its separation scheme in conjunction with the HTRCI treatment of the temporal domain. Its effectiveness is verified by a pilot de-contamination on downlink two-cell MIMO transmission scenario. Binary error rate (BER) performance can be improved in comparison to conventional HTRCI and zero padding (ZP) which replaces the impulse response alias with zeros.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2020EAL2124/_p
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@ARTICLE{e104-a_9_1345,
author={Kakeru MATSUBARA, Shun KUROKI, Koki ITO, Kazushi SHIMADA, Kazuki MARUTA, Chang-Jun AHN, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Pilot De-Contamination by Modified HTRCI with Time-Domain CSI Separation for Two-Cell MIMO Downlink},
year={2021},
volume={E104-A},
number={9},
pages={1345-1348},
abstract={This letter expands the previously proposed High Time Resolution Carrier Interferometry (HTRCI) to estimate a larger amount of channel status information (CSI). HTRCI is based on a comb-type pilot symbol on OFDM and CSI for null subcarriers are interpolated by time-domain signal processing. In order to utilize such null pilot subcarriers for increasing estimable CSI, they should generally be separated in frequency-domain prior to estimation and interpolation processes. The main proposal is its separation scheme in conjunction with the HTRCI treatment of the temporal domain. Its effectiveness is verified by a pilot de-contamination on downlink two-cell MIMO transmission scenario. Binary error rate (BER) performance can be improved in comparison to conventional HTRCI and zero padding (ZP) which replaces the impulse response alias with zeros.},
keywords={},
doi={10.1587/transfun.2020EAL2124},
ISSN={1745-1337},
month={September},}
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TY - JOUR
TI - Pilot De-Contamination by Modified HTRCI with Time-Domain CSI Separation for Two-Cell MIMO Downlink
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1345
EP - 1348
AU - Kakeru MATSUBARA
AU - Shun KUROKI
AU - Koki ITO
AU - Kazushi SHIMADA
AU - Kazuki MARUTA
AU - Chang-Jun AHN
PY - 2021
DO - 10.1587/transfun.2020EAL2124
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E104-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2021
AB - This letter expands the previously proposed High Time Resolution Carrier Interferometry (HTRCI) to estimate a larger amount of channel status information (CSI). HTRCI is based on a comb-type pilot symbol on OFDM and CSI for null subcarriers are interpolated by time-domain signal processing. In order to utilize such null pilot subcarriers for increasing estimable CSI, they should generally be separated in frequency-domain prior to estimation and interpolation processes. The main proposal is its separation scheme in conjunction with the HTRCI treatment of the temporal domain. Its effectiveness is verified by a pilot de-contamination on downlink two-cell MIMO transmission scenario. Binary error rate (BER) performance can be improved in comparison to conventional HTRCI and zero padding (ZP) which replaces the impulse response alias with zeros.
ER -