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
Neste artigo, a fim de aumentar a capacidade do sistema e reduzir a potência de transmissão do equipamento do usuário, propomos um esquema de controle de potência modificado que consiste em um controle de potência em malha fechada modificado (CLPC) e um controle de potência em malha aberta (OLPC). O algoritmo CLPC modificado, combinando algoritmos de compensação de atraso e diversidade piloto, é aplicado principalmente ao link do componente terrestre auxiliar (ATC) em áreas urbanas, porque é mais adequado para o atraso de ida e volta curto (RTD). No caso de áreas rurais, onde os ATCs não são implantados ou onde um sinal não é recebido dos ATCs, equipamentos de monitoramento de potência de transmissão e algoritmos OLPC usando diversidade piloto eficiente são combinados e aplicados ao link entre o equipamento do usuário e o satélite. Dois algoritmos de controle de potência são aplicados igualmente às áreas limite onde dois tipos de sinais são recebidos, a fim de garantir a continuidade da cobertura. Os resultados da simulação mostram que o esquema de controle de potência modificado tem bom desempenho em comparação com esquemas de controle de potência convencionais em um sistema de satélite de órbita terrestre geoestacionária (GEO) utilizando ATCs.
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Cheolwoo YOU, Byounggi KIM, Sangjin RYOO, Intae HWANG, "Modified Power Control Algorithms for Mobile Satellite Communication Systems with ATCs" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 3, pp. 935-939, March 2009, doi: 10.1587/transfun.E92.A.935.
Abstract: In this paper, in order to increase system capacity and reduce the transmitting power of the user's equipment, we propose a modified power control scheme consisting of a modified closed-loop power control (CLPC) and open-loop power control (OLPC). The modified CLPC algorithm, combining delay compensation algorithms and pilot diversity, is mainly applied to the ancillary terrestrial component (ATC) link in urban areas, because it is more suitable to the short round-trip delay (RTD). In the case of rural areas, where ATCs are not deployed or where a signal is not received from ATCs, transmit power monitoring equipment and OLPC algorithms using efficient pilot diversity are combined and applied to the link between the user's equipment and the satellite. Two power control algorithms are applied equally to the boundary areas where two kinds of signals are received in order to ensure coverage continuity. Simulation results show that the modified power control scheme has good performance compared to conventional power control schemes in a geostationary earth orbit (GEO) satellite system utilizing ATCs.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.935/_p
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@ARTICLE{e92-a_3_935,
author={Cheolwoo YOU, Byounggi KIM, Sangjin RYOO, Intae HWANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Modified Power Control Algorithms for Mobile Satellite Communication Systems with ATCs},
year={2009},
volume={E92-A},
number={3},
pages={935-939},
abstract={In this paper, in order to increase system capacity and reduce the transmitting power of the user's equipment, we propose a modified power control scheme consisting of a modified closed-loop power control (CLPC) and open-loop power control (OLPC). The modified CLPC algorithm, combining delay compensation algorithms and pilot diversity, is mainly applied to the ancillary terrestrial component (ATC) link in urban areas, because it is more suitable to the short round-trip delay (RTD). In the case of rural areas, where ATCs are not deployed or where a signal is not received from ATCs, transmit power monitoring equipment and OLPC algorithms using efficient pilot diversity are combined and applied to the link between the user's equipment and the satellite. Two power control algorithms are applied equally to the boundary areas where two kinds of signals are received in order to ensure coverage continuity. Simulation results show that the modified power control scheme has good performance compared to conventional power control schemes in a geostationary earth orbit (GEO) satellite system utilizing ATCs.},
keywords={},
doi={10.1587/transfun.E92.A.935},
ISSN={1745-1337},
month={March},}
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TY - JOUR
TI - Modified Power Control Algorithms for Mobile Satellite Communication Systems with ATCs
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 935
EP - 939
AU - Cheolwoo YOU
AU - Byounggi KIM
AU - Sangjin RYOO
AU - Intae HWANG
PY - 2009
DO - 10.1587/transfun.E92.A.935
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 3
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - March 2009
AB - In this paper, in order to increase system capacity and reduce the transmitting power of the user's equipment, we propose a modified power control scheme consisting of a modified closed-loop power control (CLPC) and open-loop power control (OLPC). The modified CLPC algorithm, combining delay compensation algorithms and pilot diversity, is mainly applied to the ancillary terrestrial component (ATC) link in urban areas, because it is more suitable to the short round-trip delay (RTD). In the case of rural areas, where ATCs are not deployed or where a signal is not received from ATCs, transmit power monitoring equipment and OLPC algorithms using efficient pilot diversity are combined and applied to the link between the user's equipment and the satellite. Two power control algorithms are applied equally to the boundary areas where two kinds of signals are received in order to ensure coverage continuity. Simulation results show that the modified power control scheme has good performance compared to conventional power control schemes in a geostationary earth orbit (GEO) satellite system utilizing ATCs.
ER -