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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo apresenta comparações entre sinais de referência comuns e dedicados (RSs) para estimativa de canal em multiplexação MIMO usando pré-codificação baseada em livro de códigos para acesso de rádio de multiplexação por divisão de frequência ortogonal (OFDM) no downlink UTRA evoluído com duplexação por divisão de frequência (FDD). Esclarecemos a melhor estrutura RS para multiplexação MIMO baseada em pré-codificação com base em comparações das estruturas em termos de rendimento alcançável, levando em consideração a sobrecarga dos RSs comuns e dedicados e o sinal de indicação de matriz de pré-codificação (PMI). Com base em extensas simulações sobre o rendimento na multiplexação MIMO 2 por 2 e 4 por 4 com pré-codificação, esclarecemos que a estimativa de canal baseada em RSs comuns multiplicados pela matriz de pré-codificação indicada pelo sinal PMI atinge um rendimento mais alto em comparação com aquele usando RSs dedicados, independentemente do número de fluxos de multiplexação espacial, quando o número de matrizes de pré-codificação disponíveis, isto é, o tamanho do livro de códigos, é inferior a aproximadamente 16 e 32 para multiplexação MIMO 2 por 2 e 4 por 4, respectivamente.
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Copiar
Hidekazu TAOKA, Yoshihisa KISHIYAMA, Kenichi HIGUCHI, Mamoru SAWAHASHI, "Comparisons between Common and Dedicated Reference Signals for MIMO Multiplexing Using Precoding in Evolved UTRA Downlink" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 5, pp. 1669-1679, May 2009, doi: 10.1587/transcom.E92.B.1669.
Abstract: This paper presents comparisons between common and dedicated reference signals (RSs) for channel estimation in MIMO multiplexing using codebook-based precoding for orthogonal frequency division multiplexing (OFDM) radio access in the Evolved UTRA downlink with frequency division duplexing (FDD). We clarify the best RS structure for precoding-based MIMO multiplexing based on comparisons of the structures in terms of the achievable throughput taking into account the overhead of the common and dedicated RSs and the precoding matrix indication (PMI) signal. Based on extensive simulations on the throughput in 2-by-2 and 4-by-4 MIMO multiplexing with precoding, we clarify that channel estimation based on common RSs multiplied with the precoding matrix indicated by the PMI signal achieves higher throughput compared to that using dedicated RSs irrespective of the number of spatial multiplexing streams when the number of available precoding matrices, i.e., the codebook size, is less than approximately 16 and 32 for 2-by-2 and 4-by-4 MIMO multiplexing, respectively.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1669/_p
Copiar
@ARTICLE{e92-b_5_1669,
author={Hidekazu TAOKA, Yoshihisa KISHIYAMA, Kenichi HIGUCHI, Mamoru SAWAHASHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Comparisons between Common and Dedicated Reference Signals for MIMO Multiplexing Using Precoding in Evolved UTRA Downlink},
year={2009},
volume={E92-B},
number={5},
pages={1669-1679},
abstract={This paper presents comparisons between common and dedicated reference signals (RSs) for channel estimation in MIMO multiplexing using codebook-based precoding for orthogonal frequency division multiplexing (OFDM) radio access in the Evolved UTRA downlink with frequency division duplexing (FDD). We clarify the best RS structure for precoding-based MIMO multiplexing based on comparisons of the structures in terms of the achievable throughput taking into account the overhead of the common and dedicated RSs and the precoding matrix indication (PMI) signal. Based on extensive simulations on the throughput in 2-by-2 and 4-by-4 MIMO multiplexing with precoding, we clarify that channel estimation based on common RSs multiplied with the precoding matrix indicated by the PMI signal achieves higher throughput compared to that using dedicated RSs irrespective of the number of spatial multiplexing streams when the number of available precoding matrices, i.e., the codebook size, is less than approximately 16 and 32 for 2-by-2 and 4-by-4 MIMO multiplexing, respectively.},
keywords={},
doi={10.1587/transcom.E92.B.1669},
ISSN={1745-1345},
month={May},}
Copiar
TY - JOUR
TI - Comparisons between Common and Dedicated Reference Signals for MIMO Multiplexing Using Precoding in Evolved UTRA Downlink
T2 - IEICE TRANSACTIONS on Communications
SP - 1669
EP - 1679
AU - Hidekazu TAOKA
AU - Yoshihisa KISHIYAMA
AU - Kenichi HIGUCHI
AU - Mamoru SAWAHASHI
PY - 2009
DO - 10.1587/transcom.E92.B.1669
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2009
AB - This paper presents comparisons between common and dedicated reference signals (RSs) for channel estimation in MIMO multiplexing using codebook-based precoding for orthogonal frequency division multiplexing (OFDM) radio access in the Evolved UTRA downlink with frequency division duplexing (FDD). We clarify the best RS structure for precoding-based MIMO multiplexing based on comparisons of the structures in terms of the achievable throughput taking into account the overhead of the common and dedicated RSs and the precoding matrix indication (PMI) signal. Based on extensive simulations on the throughput in 2-by-2 and 4-by-4 MIMO multiplexing with precoding, we clarify that channel estimation based on common RSs multiplied with the precoding matrix indicated by the PMI signal achieves higher throughput compared to that using dedicated RSs irrespective of the number of spatial multiplexing streams when the number of available precoding matrices, i.e., the codebook size, is less than approximately 16 and 32 for 2-by-2 and 4-by-4 MIMO multiplexing, respectively.
ER -