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
Este artigo propõe um método de controle de economia de energia para pontos de acesso (APs) portáteis de LAN sem fio (WLAN) alimentados por bateria em um ambiente de conjunto de serviços básicos sobrepostos (OBSS). O padrão IEEE802.11 não oferece suporte ao controle de economia de energia para APs. Foram propostos alguns métodos convencionais de controle de economia de energia para APs que usam o vetor de alocação de rede (NAV) para inibir a transmissão nas estações (STAs) enquanto o AP está em repouso. No entanto, uma vez que com estas abordagens o intervalo de beacon real no ambiente OBSS pode ser estendido devido ao NAV em comparação com o intervalo de beacon que é definido no AP, o consumo de energia e o atraso podem ser aumentados em comparação com um único BSS não afetado por interferência de APs vizinhos. Para superar esse problema, este artigo apresenta um novo quadro de ação denominado ponto de acesso com economia de energia (PSAP) quadro de ação que o AP usa para informar as STAs dentro de seu BSS sobre a duração do sono do AP. Além disso, uma função do Quadro de ação PSAP é que as STAs entram no estado de suspensão após receberem o Quadro de ação PSAP. O método de controle proposto evita o adiamento da transmissão do beacon e reduz o consumo de energia em ambiente OBSS, quando comparado ao método de controle convencional. A análise numérica e a simulação computacional revelam que o método de controle recentemente proposto conserva energia em comparação com o método de controle convencional. O método de controle proposto atinge a relação de potência mínima consumida no AP, que é de 44% em relação ao padrão, quando o intervalo do beacon é de 100 ms e a duração do sono é de 60 ms, mesmo que o número de APs vizinhos em um ambiente OBSS Está melhorado.
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Masakatsu OGAWA, Takefumi HIRAGURI, Kentaro NISHIMORI, Naoki HONMA, Kazuhiro TAKAYA, Kazuo MURAKAWA, "Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment" in IEICE TRANSACTIONS on Communications,
vol. E94-B, no. 3, pp. 658-666, March 2011, doi: 10.1587/transcom.E94.B.658.
Abstract: This paper proposes a power saving control method for battery-powered portable wireless LAN (WLAN) access points (APs) in an overlapping basic service set (OBSS) environment. The IEEE802.11 standard does not support power saving control for APs. Some conventional power saving control methods for APs have been proposed that use the network allocation vector (NAV) to inhibit transmission at stations (STAs) while the AP is sleeping. However, since with these approaches the actual beacon interval in the OBSS environment may be extended due to the NAV as compared to the beacon interval which is set at the AP, the power consumption and delay may be increased as compared to a single BSS unaffected by interference from neighboring APs. To overcome this problem, this paper introduces a new action frame named power saving access point (PSAP) action frame which the AP uses to inform STAs within its BSS about the AP's sleep length. In addition, a function of the PSAP action frame is that STAs enter the sleep state after receiving the PSAP action frame. The proposed control method avoids the postponement of beacon transmission and reduces the power consumption in an OBSS environment, as compared to the conventional control method. Numerical analysis and computer simulation reveal that the newly proposed control method conserves power as compared to the conventional control method. The proposed control method achieves the minimum consumed power ratio at the AP, which is 44% as compared to the standard, when the beacon interval is 100 ms and the sleep length is 60 ms, even if the number of neighboring APs in an OBSS environment is increased.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.658/_p
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@ARTICLE{e94-b_3_658,
author={Masakatsu OGAWA, Takefumi HIRAGURI, Kentaro NISHIMORI, Naoki HONMA, Kazuhiro TAKAYA, Kazuo MURAKAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment},
year={2011},
volume={E94-B},
number={3},
pages={658-666},
abstract={This paper proposes a power saving control method for battery-powered portable wireless LAN (WLAN) access points (APs) in an overlapping basic service set (OBSS) environment. The IEEE802.11 standard does not support power saving control for APs. Some conventional power saving control methods for APs have been proposed that use the network allocation vector (NAV) to inhibit transmission at stations (STAs) while the AP is sleeping. However, since with these approaches the actual beacon interval in the OBSS environment may be extended due to the NAV as compared to the beacon interval which is set at the AP, the power consumption and delay may be increased as compared to a single BSS unaffected by interference from neighboring APs. To overcome this problem, this paper introduces a new action frame named power saving access point (PSAP) action frame which the AP uses to inform STAs within its BSS about the AP's sleep length. In addition, a function of the PSAP action frame is that STAs enter the sleep state after receiving the PSAP action frame. The proposed control method avoids the postponement of beacon transmission and reduces the power consumption in an OBSS environment, as compared to the conventional control method. Numerical analysis and computer simulation reveal that the newly proposed control method conserves power as compared to the conventional control method. The proposed control method achieves the minimum consumed power ratio at the AP, which is 44% as compared to the standard, when the beacon interval is 100 ms and the sleep length is 60 ms, even if the number of neighboring APs in an OBSS environment is increased.},
keywords={},
doi={10.1587/transcom.E94.B.658},
ISSN={1745-1345},
month={March},}
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TY - JOUR
TI - Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment
T2 - IEICE TRANSACTIONS on Communications
SP - 658
EP - 666
AU - Masakatsu OGAWA
AU - Takefumi HIRAGURI
AU - Kentaro NISHIMORI
AU - Naoki HONMA
AU - Kazuhiro TAKAYA
AU - Kazuo MURAKAWA
PY - 2011
DO - 10.1587/transcom.E94.B.658
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2011
AB - This paper proposes a power saving control method for battery-powered portable wireless LAN (WLAN) access points (APs) in an overlapping basic service set (OBSS) environment. The IEEE802.11 standard does not support power saving control for APs. Some conventional power saving control methods for APs have been proposed that use the network allocation vector (NAV) to inhibit transmission at stations (STAs) while the AP is sleeping. However, since with these approaches the actual beacon interval in the OBSS environment may be extended due to the NAV as compared to the beacon interval which is set at the AP, the power consumption and delay may be increased as compared to a single BSS unaffected by interference from neighboring APs. To overcome this problem, this paper introduces a new action frame named power saving access point (PSAP) action frame which the AP uses to inform STAs within its BSS about the AP's sleep length. In addition, a function of the PSAP action frame is that STAs enter the sleep state after receiving the PSAP action frame. The proposed control method avoids the postponement of beacon transmission and reduces the power consumption in an OBSS environment, as compared to the conventional control method. Numerical analysis and computer simulation reveal that the newly proposed control method conserves power as compared to the conventional control method. The proposed control method achieves the minimum consumed power ratio at the AP, which is 44% as compared to the standard, when the beacon interval is 100 ms and the sleep length is 60 ms, even if the number of neighboring APs in an OBSS environment is increased.
ER -