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
Cet article présente un nouveau schéma d'allocation dynamique de sous-canaux qui peut améliorer la capacité cellulaire en coordonnant l'interférence intercellulaire (ICI) dans un système cellulaire à accès multiple par répartition orthogonale de la fréquence (OFDMA). Le schéma proposé atténue l'ICI en adoptant le concept de cellule virtuelle et améliore le facteur de réutilisation de fréquence grâce à la réutilisation de sous-canaux entre différentes cellules virtuelles. En particulier, chaque cellule virtuelle se voit attribuer un groupe de sous-canaux primaire et secondaire, et chaque station de base de secteur (BS) attribue le sous-canal résultant en la probabilité d'ICI la plus faible parmi les sous-canaux candidats aux stations mobiles, effectuant une recherche dynamique à partir de son groupe principal. puis groupe secondaire. De plus, une utilisation facultative de la superposition de pico-cellules à l'intersection des cellules virtuelles est également proposée pour améliorer l'équité du schéma proposé avec la distance BS-MS. Grâce à une simulation informatique, il est démontré que le schéma proposé présente les avantages d'une capacité de cellule améliorée et d'une équité par rapport aux schémas conventionnels.
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Gye-Tae GIL, Seong-Choon LEE, Dong-Hoi KIM, "A Dynamic Resource Allocation Scheme for Inter-Cell Interference Coordination in Cellular OFDMA Systems" in IEICE TRANSACTIONS on Communications,
vol. E94-B, no. 3, pp. 758-764, March 2011, doi: 10.1587/transcom.E94.B.758.
Abstract: This paper presents a novel dynamic subchannel allocation scheme that can improve the cell capacity by coordinating the intercell interference (ICI) in a cellular orthogonal frequency division multiple access (OFDMA) system. The proposed scheme mitigates the ICI by adopting the virtual cell concept and improves the frequency reuse factor through subchannel reuse among different virtual cells. In particular, each virtual cell is assigned a primary and a secondary subchannel group, and each sector base station (BSs) allocates the subchannel resulting in the least ICI in probability out of the candidate subchannels to the mobile stations, dynamically searching from its primary group and then secondary group. In addition, an optional use of pico-cell overlay at the intersection of the virtual cells is also proposed to enhance the fairness of the proposed scheme with the BS-MS distance. Through computer simulation, it is shown that the proposed scheme has the advantages of improved cell capacity and fairness compared to the conventional schemes.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.758/_p
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@ARTICLE{e94-b_3_758,
author={Gye-Tae GIL, Seong-Choon LEE, Dong-Hoi KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={A Dynamic Resource Allocation Scheme for Inter-Cell Interference Coordination in Cellular OFDMA Systems},
year={2011},
volume={E94-B},
number={3},
pages={758-764},
abstract={This paper presents a novel dynamic subchannel allocation scheme that can improve the cell capacity by coordinating the intercell interference (ICI) in a cellular orthogonal frequency division multiple access (OFDMA) system. The proposed scheme mitigates the ICI by adopting the virtual cell concept and improves the frequency reuse factor through subchannel reuse among different virtual cells. In particular, each virtual cell is assigned a primary and a secondary subchannel group, and each sector base station (BSs) allocates the subchannel resulting in the least ICI in probability out of the candidate subchannels to the mobile stations, dynamically searching from its primary group and then secondary group. In addition, an optional use of pico-cell overlay at the intersection of the virtual cells is also proposed to enhance the fairness of the proposed scheme with the BS-MS distance. Through computer simulation, it is shown that the proposed scheme has the advantages of improved cell capacity and fairness compared to the conventional schemes.},
keywords={},
doi={10.1587/transcom.E94.B.758},
ISSN={1745-1345},
month={March},}
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TY - JOUR
TI - A Dynamic Resource Allocation Scheme for Inter-Cell Interference Coordination in Cellular OFDMA Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 758
EP - 764
AU - Gye-Tae GIL
AU - Seong-Choon LEE
AU - Dong-Hoi KIM
PY - 2011
DO - 10.1587/transcom.E94.B.758
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2011
AB - This paper presents a novel dynamic subchannel allocation scheme that can improve the cell capacity by coordinating the intercell interference (ICI) in a cellular orthogonal frequency division multiple access (OFDMA) system. The proposed scheme mitigates the ICI by adopting the virtual cell concept and improves the frequency reuse factor through subchannel reuse among different virtual cells. In particular, each virtual cell is assigned a primary and a secondary subchannel group, and each sector base station (BSs) allocates the subchannel resulting in the least ICI in probability out of the candidate subchannels to the mobile stations, dynamically searching from its primary group and then secondary group. In addition, an optional use of pico-cell overlay at the intersection of the virtual cells is also proposed to enhance the fairness of the proposed scheme with the BS-MS distance. Through computer simulation, it is shown that the proposed scheme has the advantages of improved cell capacity and fairness compared to the conventional schemes.
ER -