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
Nos sistemas CDMA, a estratégia de controle de potência é a questão mais importante, uma vez que a capacidade do sistema é limitada apenas pela interferência. Para uma melhor compreensão dos efeitos da Estratégia de Controle de Potência do Link Forward (FLPCS) sobre a probabilidade de interrupção em ambientes com desvanecimento, este artigo apresentou uma análise teórica do link direto em um sistema celular CDMA, introduzindo a τ-ésima potência da estratégia de controle dirigida por distância. Com base no controle de potência, a capacidade e a probabilidade de interrupção do sistema são estimadas e discutidas. Em particular, consideramos o impacto do desbotamento dos ambientes e investigamos o fenômeno do “buraco”. Com base em nossos resultados numéricos, os pontos de “buraco” estão nos limites superiores onde é possível garantir a minimização do valor máximo da relação interferência-sinal total (ISR). Nesses pontos de limite superior, pelo menos, a estratégia de controle de potência leva a aproximadamente três vezes a capacidade em comparação com o caso sem estratégia de controle de potência. Pode-se concluir que o enlace direto sem estratégia de controle de potência é uma restrição muito pesada para a capacidade do sistema CDMA, especialmente em ambientes de desvanecimento significativo.
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Jie ZHOU, Yoshikuni ONOZATO, Hisakazu KIKUCHI, "Distribution of ISR and Its Optimization in Performance Evaluation of Forward Link in Cellular Mobile Radio Systems" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 8, pp. 1479-1489, August 2002, doi: .
Abstract: In CDMA systems, power control strategy is the most important issue since the capacity of the system is only interference-limited. For a better understanding of the effects of Forward Link Power Control Strategy (FLPCS) on the outage probability in fading environments, this paper has presented a theoretical analysis of forward link in a CDMA cellular system by introducing the τ-th power of distance driven control strategy. Based on the power control, the capacity and outage probability of the system are estimated and discussed. In particular, we consider the impact of fading environments and investigate the "hole" phenomenon. Based on our numerical results, the "hole" points are at the upper bounds of where it is possible to ensure minimization of the maximum value of total Interference-to-Signal Ratio (ISR). At those upper bound points, at least, the power control strategy leads to approximately threefold the capacity compared to the case without power control strategy. It can be concluded that the forward link without power control strategy is a very heavy restriction for the capacity of the CDMA system, especially in environments of significant fading.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_8_1479/_p
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@ARTICLE{e85-b_8_1479,
author={Jie ZHOU, Yoshikuni ONOZATO, Hisakazu KIKUCHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Distribution of ISR and Its Optimization in Performance Evaluation of Forward Link in Cellular Mobile Radio Systems},
year={2002},
volume={E85-B},
number={8},
pages={1479-1489},
abstract={In CDMA systems, power control strategy is the most important issue since the capacity of the system is only interference-limited. For a better understanding of the effects of Forward Link Power Control Strategy (FLPCS) on the outage probability in fading environments, this paper has presented a theoretical analysis of forward link in a CDMA cellular system by introducing the τ-th power of distance driven control strategy. Based on the power control, the capacity and outage probability of the system are estimated and discussed. In particular, we consider the impact of fading environments and investigate the "hole" phenomenon. Based on our numerical results, the "hole" points are at the upper bounds of where it is possible to ensure minimization of the maximum value of total Interference-to-Signal Ratio (ISR). At those upper bound points, at least, the power control strategy leads to approximately threefold the capacity compared to the case without power control strategy. It can be concluded that the forward link without power control strategy is a very heavy restriction for the capacity of the CDMA system, especially in environments of significant fading.},
keywords={},
doi={},
ISSN={},
month={August},}
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TY - JOUR
TI - Distribution of ISR and Its Optimization in Performance Evaluation of Forward Link in Cellular Mobile Radio Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1479
EP - 1489
AU - Jie ZHOU
AU - Yoshikuni ONOZATO
AU - Hisakazu KIKUCHI
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2002
AB - In CDMA systems, power control strategy is the most important issue since the capacity of the system is only interference-limited. For a better understanding of the effects of Forward Link Power Control Strategy (FLPCS) on the outage probability in fading environments, this paper has presented a theoretical analysis of forward link in a CDMA cellular system by introducing the τ-th power of distance driven control strategy. Based on the power control, the capacity and outage probability of the system are estimated and discussed. In particular, we consider the impact of fading environments and investigate the "hole" phenomenon. Based on our numerical results, the "hole" points are at the upper bounds of where it is possible to ensure minimization of the maximum value of total Interference-to-Signal Ratio (ISR). At those upper bound points, at least, the power control strategy leads to approximately threefold the capacity compared to the case without power control strategy. It can be concluded that the forward link without power control strategy is a very heavy restriction for the capacity of the CDMA system, especially in environments of significant fading.
ER -