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
Este artigo propõe uma lista de equalizadores de Viterbi (LVEs) que usam dois tipos de critérios métricos para canais dispersivos no tempo amplamente difundidos para obter um bom compromisso entre complexidade e desempenho de taxa de erro de bit (BER). Para a equalização de Viterbi empregando um algoritmo de redução de estado, o critério métrico modificado proposto por Ungerboeck nem sempre é equivalente ao critério métrico de distância euclidiana quadrada. Este artigo propõe os dois esquemas a seguir para o LVE: (1) combinar dois tipos de critérios métricos, como combinar diversidade; (2) selecionar o critério métrico como diversidade de seleção de acordo com a resposta ao impulso do canal. Finalmente, a simulação computacional mostra que os esquemas propostos melhoram o desempenho do BER em canais de desvanecimento seletivo de frequência amplamente difundidos, mesmo que os esquemas propostos tenham menor complexidade que o convencional.
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Hiroshi KUBO, Makoto MIYAKE, "List Viterbi Equalizers with Two Kinds of Metric Criteria" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 2, pp. 487-494, February 2002, doi: .
Abstract: This paper proposes list Viterbi equalizers (LVEs) that use two kinds of metric criteria for wide-spread time-dispersive channels to achieve a good trade-off between complexity and bit error rate (BER) performance. For Viterbi equalization employing a state-reduction algorithm, the modified metric criterion proposed by Ungerboeck is not always equivalent to the squared Euclidean distance metric criterion. This paper proposes the following two schemes for the LVE: (1) to combine two kinds of metric criteria like combining diversity; (2) to select the metric criterion like selection diversity according to the channel impulse response. Finally, computer simulation shows that the proposed schemes improve BER performance on wide-spread frequency selective fading channels, even if the proposed schemes have smaller complexity than the conventional one.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_2_487/_p
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@ARTICLE{e85-b_2_487,
author={Hiroshi KUBO, Makoto MIYAKE, },
journal={IEICE TRANSACTIONS on Communications},
title={List Viterbi Equalizers with Two Kinds of Metric Criteria},
year={2002},
volume={E85-B},
number={2},
pages={487-494},
abstract={This paper proposes list Viterbi equalizers (LVEs) that use two kinds of metric criteria for wide-spread time-dispersive channels to achieve a good trade-off between complexity and bit error rate (BER) performance. For Viterbi equalization employing a state-reduction algorithm, the modified metric criterion proposed by Ungerboeck is not always equivalent to the squared Euclidean distance metric criterion. This paper proposes the following two schemes for the LVE: (1) to combine two kinds of metric criteria like combining diversity; (2) to select the metric criterion like selection diversity according to the channel impulse response. Finally, computer simulation shows that the proposed schemes improve BER performance on wide-spread frequency selective fading channels, even if the proposed schemes have smaller complexity than the conventional one.},
keywords={},
doi={},
ISSN={},
month={February},}
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TY - JOUR
TI - List Viterbi Equalizers with Two Kinds of Metric Criteria
T2 - IEICE TRANSACTIONS on Communications
SP - 487
EP - 494
AU - Hiroshi KUBO
AU - Makoto MIYAKE
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2002
AB - This paper proposes list Viterbi equalizers (LVEs) that use two kinds of metric criteria for wide-spread time-dispersive channels to achieve a good trade-off between complexity and bit error rate (BER) performance. For Viterbi equalization employing a state-reduction algorithm, the modified metric criterion proposed by Ungerboeck is not always equivalent to the squared Euclidean distance metric criterion. This paper proposes the following two schemes for the LVE: (1) to combine two kinds of metric criteria like combining diversity; (2) to select the metric criterion like selection diversity according to the channel impulse response. Finally, computer simulation shows that the proposed schemes improve BER performance on wide-spread frequency selective fading channels, even if the proposed schemes have smaller complexity than the conventional one.
ER -