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
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Neste artigo, propomos um acesso múltiplo não ortogonal com alocação adaptativa de recursos. O acesso múltiplo não ortogonal proposto atribui recursos de múltiplas frequências para cada dispositivo enviar pacotes. Mesmo que o número de dispositivos seja superior ao dos recursos de frequência disponíveis, o acesso não ortogonal proposto permite que todos os dispositivos transmitam os seus pacotes simultaneamente para comunicações massivas do tipo máquina (mMTC) de alta capacidade. Além disso, este artigo propõe algoritmos adaptativos de alocação de recursos baseados em gráficos de fatores que alocam de forma adaptativa os recursos de frequência aos dispositivos para melhoria do desempenho de transmissão. Este artigo propõe dois algoritmos de alocação para o acesso múltiplo não ortogonal proposto. Este artigo mostra que o acesso múltiplo não ortogonal proposto atinge desempenho de transmissão superior quando o número de dispositivos é 50% maior que a quantidade do recurso, ou seja, a taxa de sobrecarga de 1.5, mesmo sem a alocação adaptativa de recursos. A alocação adaptativa de recursos permite que o acesso não ortogonal proposto atinja um ganho de cerca de 5dB no BER de 10-4.
Taichi YAMAGAMI
Okayama University
Satoshi DENNO
Okayama University
Yafei HOU
Okayama University
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Taichi YAMAGAMI, Satoshi DENNO, Yafei HOU, "Adaptive Resource Allocation Based on Factor Graphs in Non-Orthogonal Multiple Access" in IEICE TRANSACTIONS on Communications,
vol. E105-B, no. 10, pp. 1258-1267, October 2022, doi: 10.1587/transcom.2021EBP3213.
Abstract: In this paper, we propose a non-orthogonal multiple access with adaptive resource allocation. The proposed non-orthogonal multiple access assigns multiple frequency resources for each device to send packets. Even if the number of devices is more than that of the available frequency resources, the proposed non-orthogonal access allows all the devices to transmit their packets simultaneously for high capacity massive machine-type communications (mMTC). Furthermore, this paper proposes adaptive resource allocation algorithms based on factor graphs that adaptively allocate the frequency resources to the devices for improvement of the transmission performances. This paper proposes two allocation algorithms for the proposed non-orthogonal multiple access. This paper shows that the proposed non-orthogonal multiple access achieves superior transmission performance when the number of the devices is 50% greater than the amount of the resource, i.e., the overloading ratio of 1.5, even without the adaptive resource allocation. The adaptive resource allocation enables the proposed non-orthogonal access to attain a gain of about 5dB at the BER of 10-4.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2021EBP3213/_p
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@ARTICLE{e105-b_10_1258,
author={Taichi YAMAGAMI, Satoshi DENNO, Yafei HOU, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive Resource Allocation Based on Factor Graphs in Non-Orthogonal Multiple Access},
year={2022},
volume={E105-B},
number={10},
pages={1258-1267},
abstract={In this paper, we propose a non-orthogonal multiple access with adaptive resource allocation. The proposed non-orthogonal multiple access assigns multiple frequency resources for each device to send packets. Even if the number of devices is more than that of the available frequency resources, the proposed non-orthogonal access allows all the devices to transmit their packets simultaneously for high capacity massive machine-type communications (mMTC). Furthermore, this paper proposes adaptive resource allocation algorithms based on factor graphs that adaptively allocate the frequency resources to the devices for improvement of the transmission performances. This paper proposes two allocation algorithms for the proposed non-orthogonal multiple access. This paper shows that the proposed non-orthogonal multiple access achieves superior transmission performance when the number of the devices is 50% greater than the amount of the resource, i.e., the overloading ratio of 1.5, even without the adaptive resource allocation. The adaptive resource allocation enables the proposed non-orthogonal access to attain a gain of about 5dB at the BER of 10-4.},
keywords={},
doi={10.1587/transcom.2021EBP3213},
ISSN={1745-1345},
month={October},}
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TY - JOUR
TI - Adaptive Resource Allocation Based on Factor Graphs in Non-Orthogonal Multiple Access
T2 - IEICE TRANSACTIONS on Communications
SP - 1258
EP - 1267
AU - Taichi YAMAGAMI
AU - Satoshi DENNO
AU - Yafei HOU
PY - 2022
DO - 10.1587/transcom.2021EBP3213
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E105-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2022
AB - In this paper, we propose a non-orthogonal multiple access with adaptive resource allocation. The proposed non-orthogonal multiple access assigns multiple frequency resources for each device to send packets. Even if the number of devices is more than that of the available frequency resources, the proposed non-orthogonal access allows all the devices to transmit their packets simultaneously for high capacity massive machine-type communications (mMTC). Furthermore, this paper proposes adaptive resource allocation algorithms based on factor graphs that adaptively allocate the frequency resources to the devices for improvement of the transmission performances. This paper proposes two allocation algorithms for the proposed non-orthogonal multiple access. This paper shows that the proposed non-orthogonal multiple access achieves superior transmission performance when the number of the devices is 50% greater than the amount of the resource, i.e., the overloading ratio of 1.5, even without the adaptive resource allocation. The adaptive resource allocation enables the proposed non-orthogonal access to attain a gain of about 5dB at the BER of 10-4.
ER -