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
A coordenação de estações base é considerada uma técnica promissora para mitigar a interferência entre células e melhorar o desempenho da borda da célula em redes celulares de acesso múltiplo por divisão de frequência ortogonal (OFDMA). O problema de projetar um esquema eficiente de alocação de recursos de rádio para redes OFDMA celulares coordenadas que incorporam coordenação de estação base foi apenas parcialmente investigado. Nesta contribuição, um novo algoritmo de alocação de recursos de rádio com reutilização de frequência universal é proposto para suportar a transmissão coordenada de estações base. Em primeiro lugar, com a suposição de coordenação global entre todos os sectores da estação base na rede, é proposto um algoritmo coordenado de atribuição de subcanais. Então, dividindo toda a rede em um número de agrupamentos coordenados e disjuntos de setores de estações base, um algoritmo de feedback reduzido para atribuição de subcanais é proposto para uso prático. A função de utilidade baseada na taxa de transferência média do usuário é usada para equilibrar a eficiência e a justiça da alocação de recursos sem fio. Os resultados da simulação em nível de sistema demonstram que o algoritmo de atribuição de subcanal de feedback reduzido melhora significativamente o rendimento médio da borda da célula e o índice de justiça dos usuários na rede, com degradação aceitável do desempenho médio da célula.
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Jingya LI, Xiaodong XU, Xin CHEN, Xiaofeng TAO, Hui ZHANG, Tommy SVENSSON, Carmen BOTELLA, "Downlink Radio Resource Allocation for Coordinated Cellular OFDMA Networks" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 12, pp. 3480-3488, December 2010, doi: 10.1587/transcom.E93.B.3480.
Abstract: Base station coordination is considered as a promising technique to mitigate inter-cell interference and improve the cell-edge performance in cellular orthogonal frequency division multiple-access (OFDMA) networks. The problem to design an efficient radio resource allocation scheme for coordinated cellular OFDMA networks incorporating base station coordination has been only partially investigated. In this contribution, a novel radio resource allocation algorithm with universal frequency reuse is proposed to support base station coordinated transmission. Firstly, with the assumption of global coordination between all base station sectors in the network, a coordinated subchannel assignment algorithm is proposed. Then, by dividing the entire network into a number of disjoint coordinated clusters of base station sectors, a reduced-feedback algorithm for subchannel assignment is proposed for practical use. The utility function based on the user average throughput is used to balance the efficiency and fairness of wireless resource allocation. System level simulation results demonstrate that the reduced-feedback subchannel assignment algorithm significantly improves the cell-edge average throughput and the fairness index of users in the network, with acceptable degradation of cell-average performance.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.3480/_p
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@ARTICLE{e93-b_12_3480,
author={Jingya LI, Xiaodong XU, Xin CHEN, Xiaofeng TAO, Hui ZHANG, Tommy SVENSSON, Carmen BOTELLA, },
journal={IEICE TRANSACTIONS on Communications},
title={Downlink Radio Resource Allocation for Coordinated Cellular OFDMA Networks},
year={2010},
volume={E93-B},
number={12},
pages={3480-3488},
abstract={Base station coordination is considered as a promising technique to mitigate inter-cell interference and improve the cell-edge performance in cellular orthogonal frequency division multiple-access (OFDMA) networks. The problem to design an efficient radio resource allocation scheme for coordinated cellular OFDMA networks incorporating base station coordination has been only partially investigated. In this contribution, a novel radio resource allocation algorithm with universal frequency reuse is proposed to support base station coordinated transmission. Firstly, with the assumption of global coordination between all base station sectors in the network, a coordinated subchannel assignment algorithm is proposed. Then, by dividing the entire network into a number of disjoint coordinated clusters of base station sectors, a reduced-feedback algorithm for subchannel assignment is proposed for practical use. The utility function based on the user average throughput is used to balance the efficiency and fairness of wireless resource allocation. System level simulation results demonstrate that the reduced-feedback subchannel assignment algorithm significantly improves the cell-edge average throughput and the fairness index of users in the network, with acceptable degradation of cell-average performance.},
keywords={},
doi={10.1587/transcom.E93.B.3480},
ISSN={1745-1345},
month={December},}
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TY - JOUR
TI - Downlink Radio Resource Allocation for Coordinated Cellular OFDMA Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 3480
EP - 3488
AU - Jingya LI
AU - Xiaodong XU
AU - Xin CHEN
AU - Xiaofeng TAO
AU - Hui ZHANG
AU - Tommy SVENSSON
AU - Carmen BOTELLA
PY - 2010
DO - 10.1587/transcom.E93.B.3480
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2010
AB - Base station coordination is considered as a promising technique to mitigate inter-cell interference and improve the cell-edge performance in cellular orthogonal frequency division multiple-access (OFDMA) networks. The problem to design an efficient radio resource allocation scheme for coordinated cellular OFDMA networks incorporating base station coordination has been only partially investigated. In this contribution, a novel radio resource allocation algorithm with universal frequency reuse is proposed to support base station coordinated transmission. Firstly, with the assumption of global coordination between all base station sectors in the network, a coordinated subchannel assignment algorithm is proposed. Then, by dividing the entire network into a number of disjoint coordinated clusters of base station sectors, a reduced-feedback algorithm for subchannel assignment is proposed for practical use. The utility function based on the user average throughput is used to balance the efficiency and fairness of wireless resource allocation. System level simulation results demonstrate that the reduced-feedback subchannel assignment algorithm significantly improves the cell-edge average throughput and the fairness index of users in the network, with acceptable degradation of cell-average performance.
ER -