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
본 논문에서는 전용 PICH와 CPICH 사이의 페이딩 상관관계가 높을 때 전용 파일럿 채널(PICH) 외에 공통 파일럿 채널(CPICH)을 이용한 정확한 채널 추정 방법을 연구하고, 제안하는 채널 추정 방법이 적용 가능한 영역을 명확히 한다. 순방향 링크의 AAA-TD(Adaptive Antenna Array Transmit Diversity)에 효과적입니다. 컴퓨터 시뮬레이션 결과, 거리가 멀어지는 지역에 대한 전용 PICH 외에 전방향 안테나에서 전송되는 P-CPICH(Primary-CPICH)를 이용하면 보다 정확한 채널 추정이 가능함을 알 수 있다. d, 기지국과 이동 단말기 사이의 길이가 약 200m 이상인 경우, d 약 200m보다 짧습니다. 한편, 전용 PICH 외에 여러 방향성 빔으로 전송되는 S-CPICH(secondary-CPICH)를 채용함으로써 요구되는 평균 수신 Eb/N0 평균 BER 10에서-3 의 값에 관계없이 전용 PICH만을 이용한 채널 추정 방법에 비해 약 0.4(0.2~0.4)dB 정도 감소한다. d 안테나 개수가 4(8)개인 경우.
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Shinya TANAKA, Mamoru SAWAHASHI, Heiichi YAMAMOTO, "Investigation of Channel Estimation Method for Adaptive Antenna Array Transmit Diversity in W-CDMA Forward Link" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 12, pp. 2630-2639, December 2002, doi: .
Abstract: This paper investigates an accurate channel estimation method using the common pilot channel (CPICH) in addition to a dedicated pilot channel (PICH) when the fading correlation between the dedicated PICH and CPICH is high, and clarifies the area in which the proposed channel estimation method is effective for adaptive antenna array transmit diversity (AAA-TD) in the forward link. Computer simulation results elucidate that although a more precise channel estimation is possible by using the primary-CPICH (P-CPICH) transmitted from an omni-directional antenna in addition to the dedicated PICH for the area where the distance, d, between a base station and a mobile terminal is longer than approximately 200 m, no improvement is obtained for the area where the value of d is shorter than approximately 200 m. Meanwhile, by employing the secondary-CPICH (S-CPICH) transmitted with several directional beams in addition to the dedicated PICH, the required average received Eb/N0 at the average BER of 10-3 is decreased by approximately 0.4 (0.2-0.4) dB compared to the channel estimation method using only the dedicated PICH regardless of the value of d when the number of antennas is 4 (8).
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_12_2630/_p
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@ARTICLE{e85-b_12_2630,
author={Shinya TANAKA, Mamoru SAWAHASHI, Heiichi YAMAMOTO, },
journal={IEICE TRANSACTIONS on Communications},
title={Investigation of Channel Estimation Method for Adaptive Antenna Array Transmit Diversity in W-CDMA Forward Link},
year={2002},
volume={E85-B},
number={12},
pages={2630-2639},
abstract={This paper investigates an accurate channel estimation method using the common pilot channel (CPICH) in addition to a dedicated pilot channel (PICH) when the fading correlation between the dedicated PICH and CPICH is high, and clarifies the area in which the proposed channel estimation method is effective for adaptive antenna array transmit diversity (AAA-TD) in the forward link. Computer simulation results elucidate that although a more precise channel estimation is possible by using the primary-CPICH (P-CPICH) transmitted from an omni-directional antenna in addition to the dedicated PICH for the area where the distance, d, between a base station and a mobile terminal is longer than approximately 200 m, no improvement is obtained for the area where the value of d is shorter than approximately 200 m. Meanwhile, by employing the secondary-CPICH (S-CPICH) transmitted with several directional beams in addition to the dedicated PICH, the required average received Eb/N0 at the average BER of 10-3 is decreased by approximately 0.4 (0.2-0.4) dB compared to the channel estimation method using only the dedicated PICH regardless of the value of d when the number of antennas is 4 (8).},
keywords={},
doi={},
ISSN={},
month={December},}
부
TY - JOUR
TI - Investigation of Channel Estimation Method for Adaptive Antenna Array Transmit Diversity in W-CDMA Forward Link
T2 - IEICE TRANSACTIONS on Communications
SP - 2630
EP - 2639
AU - Shinya TANAKA
AU - Mamoru SAWAHASHI
AU - Heiichi YAMAMOTO
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2002
AB - This paper investigates an accurate channel estimation method using the common pilot channel (CPICH) in addition to a dedicated pilot channel (PICH) when the fading correlation between the dedicated PICH and CPICH is high, and clarifies the area in which the proposed channel estimation method is effective for adaptive antenna array transmit diversity (AAA-TD) in the forward link. Computer simulation results elucidate that although a more precise channel estimation is possible by using the primary-CPICH (P-CPICH) transmitted from an omni-directional antenna in addition to the dedicated PICH for the area where the distance, d, between a base station and a mobile terminal is longer than approximately 200 m, no improvement is obtained for the area where the value of d is shorter than approximately 200 m. Meanwhile, by employing the secondary-CPICH (S-CPICH) transmitted with several directional beams in addition to the dedicated PICH, the required average received Eb/N0 at the average BER of 10-3 is decreased by approximately 0.4 (0.2-0.4) dB compared to the channel estimation method using only the dedicated PICH regardless of the value of d when the number of antennas is 4 (8).
ER -