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
건물과 같은 일반적인 실내 환경에서는 지연 확산이 작은 경향이 있어 주파수 비선택적 페이딩이 발생합니다. 따라서 RAKE 수신기에서 확인 가능한 경로를 얻을 수 없으며 효과적인 경로 다양성을 얻을 수 없습니다. 본 논문에서는 데이터 전송을 위한 채널 상황에 따라 기지국에서 하나 또는 다수의 섹터를 미리 선택하는 인위적인 경로 다이버시티 시스템을 제안한다. 각 섹터의 신호는 여러 칩에 의해 지연되어 인공 경로를 생성한 다음 이동국에서 RAKE 수신기를 사용하여 결합하여 실내 환경에 대한 다양성 효과를 생성할 수 있습니다. 또한, 모든 섹터를 이용하여 경로가 차단된 섹터의 비효율적인 신호 사용량을 줄이기 위해 미리 선택된 섹터 안테나만 신호를 전송하므로 기지국에서는 전송 전력을 효율적으로 사용하게 된다. 섹터 선택 결과, 섹터 선택을 통해 더 나은 BER 성능과 서로 다른 채널 간의 간섭 신호 감소를 달성할 수 있습니다. 제안된 시스템의 성능은 Rayleigh 및 로그 정규 페이딩 실내 환경에서 컴퓨터 시뮬레이션을 통해 분석되고 시연됩니다.
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Kyesan LEE, Masao NAKAGAWA, "Adaptive Base Station Sector Antenna Pre-Selection Transmitter Diversity Using CDMA Forward Link Signal for Indoor Wireless LAN" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 11, pp. 2464-2473, November 2000, doi: .
Abstract: In a typical indoor environment such as in a building, delay spread tends to be small, which causes frequency non-selective fading. Therefore resolvable paths at the RAKE receiver can not be obtained, and effective path diversity can not be achieved. This paper proposes an artificial path diversity system in which one or multiple sectors at the base station are pre-selected according to the channel conditions for transmitting data. Each sector's signal is delayed by several chips to create artificial paths which can then be combined by using a RAKE receiver at the mobile station creating a diversity effect for an indoor environment. Moreover, only pre-selected sector antennas transmit signals to reduce inefficient signal usage in the sectors whose paths are blocked by using all sectors, therefore the transmission power is used efficiently at the base station. As a result of sector selection, the better BER performance and the reduction of interference signals between different channels can be achieved by means of sector selection. The performance of the proposed system is analyzed and demonstrated by computer simulation in a Rayleigh and log-normal fading indoor environment.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_11_2464/_p
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@ARTICLE{e83-b_11_2464,
author={Kyesan LEE, Masao NAKAGAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive Base Station Sector Antenna Pre-Selection Transmitter Diversity Using CDMA Forward Link Signal for Indoor Wireless LAN},
year={2000},
volume={E83-B},
number={11},
pages={2464-2473},
abstract={In a typical indoor environment such as in a building, delay spread tends to be small, which causes frequency non-selective fading. Therefore resolvable paths at the RAKE receiver can not be obtained, and effective path diversity can not be achieved. This paper proposes an artificial path diversity system in which one or multiple sectors at the base station are pre-selected according to the channel conditions for transmitting data. Each sector's signal is delayed by several chips to create artificial paths which can then be combined by using a RAKE receiver at the mobile station creating a diversity effect for an indoor environment. Moreover, only pre-selected sector antennas transmit signals to reduce inefficient signal usage in the sectors whose paths are blocked by using all sectors, therefore the transmission power is used efficiently at the base station. As a result of sector selection, the better BER performance and the reduction of interference signals between different channels can be achieved by means of sector selection. The performance of the proposed system is analyzed and demonstrated by computer simulation in a Rayleigh and log-normal fading indoor environment.},
keywords={},
doi={},
ISSN={},
month={November},}
부
TY - JOUR
TI - Adaptive Base Station Sector Antenna Pre-Selection Transmitter Diversity Using CDMA Forward Link Signal for Indoor Wireless LAN
T2 - IEICE TRANSACTIONS on Communications
SP - 2464
EP - 2473
AU - Kyesan LEE
AU - Masao NAKAGAWA
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2000
AB - In a typical indoor environment such as in a building, delay spread tends to be small, which causes frequency non-selective fading. Therefore resolvable paths at the RAKE receiver can not be obtained, and effective path diversity can not be achieved. This paper proposes an artificial path diversity system in which one or multiple sectors at the base station are pre-selected according to the channel conditions for transmitting data. Each sector's signal is delayed by several chips to create artificial paths which can then be combined by using a RAKE receiver at the mobile station creating a diversity effect for an indoor environment. Moreover, only pre-selected sector antennas transmit signals to reduce inefficient signal usage in the sectors whose paths are blocked by using all sectors, therefore the transmission power is used efficiently at the base station. As a result of sector selection, the better BER performance and the reduction of interference signals between different channels can be achieved by means of sector selection. The performance of the proposed system is analyzed and demonstrated by computer simulation in a Rayleigh and log-normal fading indoor environment.
ER -