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
Neste artigo, o efeito da resposta ao impulso de filtros de modelagem de pulso em um sistema de multiplexação por divisão de frequência ortogonal de amostragem fracionada (FS OFDM) é investigado. O FS alcança diversidade de caminho com uma única antena por meio de sobreamostragem e combinação de razão máxima baseada em subportadora (MRC). Embora a sobreamostragem aumente a ordem de diversidade, a correlação entre os componentes de ruído pode deteriorar o desempenho da taxa de erro de bit (BER). Para esclarecer a relação entre a resposta ao impulso do filtro modelador de pulso e o desempenho do BER, cinco filtros modeladores de pulso diferentes são avaliados no sistema FS OFDM. Os resultados numéricos de simulações computacionais mostram que a norma Frobenius de uma matriz de branqueamento correspondente ao filtro de modelagem de pulso tem efeito significativo no desempenho do BER, especialmente com um pequeno número de subportadoras. É também mostrado que o ajuste métrico baseado na norma Frobenius melhora o desempenho BER do sistema FS OFDM codificado.
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Mamiko INAMORI, Takashi KAWAI, Tatsuya KOBAYASHI, Haruki NISHIMURA, Yukitoshi SANADA, "Effect of Pulse Shaping Filters on a Fractional Sampling OFDM System with Subcarrier-Based Maximal Ratio Combining" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 5, pp. 1484-1494, May 2009, doi: 10.1587/transcom.E92.B.1484.
Abstract: In this paper, the effect of the impulse response of pulse shaping filters on a fractional sampling orthogonal frequency division multiplexing (FS OFDM) system is investigated. FS achieves path diversity with a single antenna through oversampling and subcarrier-based maximal ratio combining (MRC). Though the oversampling increases diversity order, correlation among noise components may deteriorate bit error rate (BER) performance. To clarify the relationship between the impulse response of the pulse shaping filter and the BER performance, five different pulse shaping filters are evaluated in the FS OFDM system. Numerical results of computer simulations show that the Frobenius norm of a whitening matrix corresponding to the pulse shaping filter has significant effect on the BER performance especially with a small numbers of subcarriers. It is also shown that metric adjustment based on the Frobenius norm improves BER performance of the coded FS OFDM system.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1484/_p
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@ARTICLE{e92-b_5_1484,
author={Mamiko INAMORI, Takashi KAWAI, Tatsuya KOBAYASHI, Haruki NISHIMURA, Yukitoshi SANADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Effect of Pulse Shaping Filters on a Fractional Sampling OFDM System with Subcarrier-Based Maximal Ratio Combining},
year={2009},
volume={E92-B},
number={5},
pages={1484-1494},
abstract={In this paper, the effect of the impulse response of pulse shaping filters on a fractional sampling orthogonal frequency division multiplexing (FS OFDM) system is investigated. FS achieves path diversity with a single antenna through oversampling and subcarrier-based maximal ratio combining (MRC). Though the oversampling increases diversity order, correlation among noise components may deteriorate bit error rate (BER) performance. To clarify the relationship between the impulse response of the pulse shaping filter and the BER performance, five different pulse shaping filters are evaluated in the FS OFDM system. Numerical results of computer simulations show that the Frobenius norm of a whitening matrix corresponding to the pulse shaping filter has significant effect on the BER performance especially with a small numbers of subcarriers. It is also shown that metric adjustment based on the Frobenius norm improves BER performance of the coded FS OFDM system.},
keywords={},
doi={10.1587/transcom.E92.B.1484},
ISSN={1745-1345},
month={May},}
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TY - JOUR
TI - Effect of Pulse Shaping Filters on a Fractional Sampling OFDM System with Subcarrier-Based Maximal Ratio Combining
T2 - IEICE TRANSACTIONS on Communications
SP - 1484
EP - 1494
AU - Mamiko INAMORI
AU - Takashi KAWAI
AU - Tatsuya KOBAYASHI
AU - Haruki NISHIMURA
AU - Yukitoshi SANADA
PY - 2009
DO - 10.1587/transcom.E92.B.1484
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2009
AB - In this paper, the effect of the impulse response of pulse shaping filters on a fractional sampling orthogonal frequency division multiplexing (FS OFDM) system is investigated. FS achieves path diversity with a single antenna through oversampling and subcarrier-based maximal ratio combining (MRC). Though the oversampling increases diversity order, correlation among noise components may deteriorate bit error rate (BER) performance. To clarify the relationship between the impulse response of the pulse shaping filter and the BER performance, five different pulse shaping filters are evaluated in the FS OFDM system. Numerical results of computer simulations show that the Frobenius norm of a whitening matrix corresponding to the pulse shaping filter has significant effect on the BER performance especially with a small numbers of subcarriers. It is also shown that metric adjustment based on the Frobenius norm improves BER performance of the coded FS OFDM system.
ER -