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
Un certain nombre de schémas de coordination des interférences intercellulaires ont été proposés pour atténuer le problème d'interférence intercellulaire pour les systèmes à accès multiple par répartition orthogonale de la fréquence (OFDMA). Parmi eux, la réutilisation partielle des fréquences est considérée comme l'une des approches les plus prometteuses. Dans cet article, nous proposons un schéma d'atténuation des interférences inter-cellules pour un système de liaison descendante OFDMA, qui utilise à la fois la réutilisation partielle des fréquences et le transfert progressif. L'idée de base de ce schéma hybride est de sélectionner dynamiquement entre un schéma de réutilisation partielle des fréquences et un schéma de transfert progressif afin de fournir une meilleure qualité de signal aux utilisateurs de périphérie de cellule. Par rapport au schéma standard de réutilisation partielle des fréquences, les résultats de la simulation montrent qu'environ un quart des utilisateurs de périphérie de cellule peuvent obtenir des améliorations de la qualité du signal ainsi qu'une efficacité spectrale de liaison grâce à l'utilisation du schéma hybride proposé. Nous observons également qu’en utilisant notre approche, il existe un gain de débit de bord de cellule significatif par rapport au schéma standard de réutilisation partielle des fréquences. De plus, sur la base d'un critère d'équité du débit de données bien défini, nous montrons que notre méthode permet d'obtenir une capacité globale du système plus élevée par rapport au schéma standard de réutilisation partielle des fréquences.
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Che-Sheng CHIU, Chia-Chi HUANG, "A Hybrid Inter-Cell Interference Mitigation Scheme for an OFDMA Downlink System" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 1, pp. 73-81, January 2010, doi: 10.1587/transcom.E93.B.73.
Abstract: A number of inter-cell interference coordination schemes have been proposed to mitigate the inter-cell interference problem for orthogonal frequency division multiple access (OFDMA) systems and among them, partial frequency reuse is considered one of the most promising approaches. In this paper, we propose an inter-cell interference mitigation scheme for an OFDMA downlink system, which makes use of both partial frequency reuse and soft handover. The basic idea of this hybrid scheme is to dynamically select between a partial frequency reuse scheme and a soft handover scheme to provide better signal quality for cell edge users. Compared with the standard partial frequency reuse scheme, simulation results show that approximately one quarter of cell edge users can get improvements in signal quality as well as link spectral efficiency from using the proposed hybrid scheme. We also observe that by using our approach, there is a significant cell edge throughput gain over the standard partial frequency reuse scheme. Furthermore, based on a well defined data rate fairness criterion, we show that our method achieves higher overall system capacity as compared with the standard partial frequency reuse scheme.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.73/_p
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@ARTICLE{e93-b_1_73,
author={Che-Sheng CHIU, Chia-Chi HUANG, },
journal={IEICE TRANSACTIONS on Communications},
title={A Hybrid Inter-Cell Interference Mitigation Scheme for an OFDMA Downlink System},
year={2010},
volume={E93-B},
number={1},
pages={73-81},
abstract={A number of inter-cell interference coordination schemes have been proposed to mitigate the inter-cell interference problem for orthogonal frequency division multiple access (OFDMA) systems and among them, partial frequency reuse is considered one of the most promising approaches. In this paper, we propose an inter-cell interference mitigation scheme for an OFDMA downlink system, which makes use of both partial frequency reuse and soft handover. The basic idea of this hybrid scheme is to dynamically select between a partial frequency reuse scheme and a soft handover scheme to provide better signal quality for cell edge users. Compared with the standard partial frequency reuse scheme, simulation results show that approximately one quarter of cell edge users can get improvements in signal quality as well as link spectral efficiency from using the proposed hybrid scheme. We also observe that by using our approach, there is a significant cell edge throughput gain over the standard partial frequency reuse scheme. Furthermore, based on a well defined data rate fairness criterion, we show that our method achieves higher overall system capacity as compared with the standard partial frequency reuse scheme.},
keywords={},
doi={10.1587/transcom.E93.B.73},
ISSN={1745-1345},
month={January},}
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TY - JOUR
TI - A Hybrid Inter-Cell Interference Mitigation Scheme for an OFDMA Downlink System
T2 - IEICE TRANSACTIONS on Communications
SP - 73
EP - 81
AU - Che-Sheng CHIU
AU - Chia-Chi HUANG
PY - 2010
DO - 10.1587/transcom.E93.B.73
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2010
AB - A number of inter-cell interference coordination schemes have been proposed to mitigate the inter-cell interference problem for orthogonal frequency division multiple access (OFDMA) systems and among them, partial frequency reuse is considered one of the most promising approaches. In this paper, we propose an inter-cell interference mitigation scheme for an OFDMA downlink system, which makes use of both partial frequency reuse and soft handover. The basic idea of this hybrid scheme is to dynamically select between a partial frequency reuse scheme and a soft handover scheme to provide better signal quality for cell edge users. Compared with the standard partial frequency reuse scheme, simulation results show that approximately one quarter of cell edge users can get improvements in signal quality as well as link spectral efficiency from using the proposed hybrid scheme. We also observe that by using our approach, there is a significant cell edge throughput gain over the standard partial frequency reuse scheme. Furthermore, based on a well defined data rate fairness criterion, we show that our method achieves higher overall system capacity as compared with the standard partial frequency reuse scheme.
ER -