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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
OFDMA(Orthogonal Frequency Division Multiple Access) 시스템의 셀 간 간섭 문제를 완화하기 위해 셀 간 간섭 조정 기법이 많이 제안되었으며, 그 중 부분 주파수 재사용이 가장 유망한 접근법 중 하나로 간주됩니다. 본 논문에서는 부분 주파수 재사용과 소프트 핸드오버를 모두 활용하는 OFDMA 다운링크 시스템을 위한 셀 간 간섭 완화 기법을 제안한다. 이 하이브리드 방식의 기본 아이디어는 부분 주파수 재사용 방식과 소프트 핸드오버 방식 중에서 동적으로 선택하여 셀 경계 사용자에게 더 나은 신호 품질을 제공하는 것입니다. 표준 부분 주파수 재사용 방식과 비교했을 때, 시뮬레이션 결과는 약 1/4의 셀 경계 사용자가 제안된 하이브리드 방식을 사용하여 신호 품질과 링크 스펙트럼 효율성을 향상시킬 수 있음을 보여줍니다. 또한 우리의 접근 방식을 사용하면 표준 부분 주파수 재사용 방식에 비해 셀 에지 처리량이 크게 향상된다는 것을 관찰했습니다. 또한, 잘 정의된 데이터 속도 공정성 기준을 기반으로 우리의 방법이 표준 부분 주파수 재사용 방식과 비교하여 더 높은 전체 시스템 용량을 달성한다는 것을 보여줍니다.
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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},}
부
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 -