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 CDMA 사용자와 협대역 사용자가 동일한 주파수 대역에 공존하는 DS/CDMA 오버레이 시스템에 대한 PN 코드 획득 기법의 성능을 분석하고 시뮬레이션한다. 협대역 사용자는 CDMA 사용자 대역폭의 일부에 위치한 협대역 간섭(NBI)으로 모델링됩니다. NBI를 억제하기 위해 수신기 프런트엔드에 간섭 억제 필터가 사용됩니다. 획득 성능은 획득 프로세스에 대한 상태 전이 다이어그램을 사용하여 평균 획득 시간으로 평가됩니다. DS/CDMA 모바일 셀룰러 환경에 적용하기 위해서는 획득 성능 분석에서 다중 접속 간섭과 전력 제어의 불완전성을 고려합니다. 불완전한 전력 제어는 각 사용자의 전력을 공칭 수신 전력에 대해 로그 정규 분포로 모델링하여 고려됩니다. 시뮬레이션 결과로부터 완벽한 전력 제어와 불완전한 전력 제어의 경우 간섭 억제 필터는 DS/CDMA 오버레이 환경에서 NBI 억제 및 신속한 PN 코드 획득에 매우 효과적인 것으로 나타났습니다. 또한 간섭 억제 필터에 대한 단방향 탭 수 5가 NBI를 억제하는 데 충분하다는 것을 보여줍니다. 그리고 용량 추정치는 획득 및 BER 성능을 기준으로 비교됩니다. 본 논문의 분석은 DS/CDMA 오버레이 환경의 실제 상황에 적용될 수 있습니다.
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부
Jin Young KIM, "Narrowband Interference Suppression for PN Code Acquisition in a DS/CDMA Overlay Environment" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 8, pp. 1631-1639, August 2000, doi: .
Abstract: In this paper, performance of a PN code acquisition scheme is analyzed and simulated for a DS/CDMA overlay system where a CDMA user and a narrowband user coexist in the same frequency band. A narrowband user is modelled as a narrowband interference (NBI) located at the fraction of a CDMA user's bandwidth. To suppress the NBI, an interference suppression filter is employed at the receiver frontend. Acquisition performance is evaluated in terms of mean acquisition time using state transition diagram for acquisition process. To apply for a DS/CDMA mobile cellular environments, multiple access interference and imperfection of power control are taken into account in the analysis of acquisition performance. The imperfect power control is considered by modelling the power of each user to be lognormally distributed about nominal received power. From the simulation results, it is shown that for the cases of perfect and imperfect power control, the interference suppression filter is very effective for supprssion of the NBI and rapid PN code acquisition in a DS/CDMA overlay environment. It is also shown that the one-sided tap number of 5 for interference suppression filter is sufficient to suppress the NBI. And, capacity estimates are compared based on acquisition and BER performance. The analysis in this paper can be applied to the practical situations for a DS/CDMA overlay environment.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_8_1631/_p
부
@ARTICLE{e83-b_8_1631,
author={Jin Young KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={Narrowband Interference Suppression for PN Code Acquisition in a DS/CDMA Overlay Environment},
year={2000},
volume={E83-B},
number={8},
pages={1631-1639},
abstract={In this paper, performance of a PN code acquisition scheme is analyzed and simulated for a DS/CDMA overlay system where a CDMA user and a narrowband user coexist in the same frequency band. A narrowband user is modelled as a narrowband interference (NBI) located at the fraction of a CDMA user's bandwidth. To suppress the NBI, an interference suppression filter is employed at the receiver frontend. Acquisition performance is evaluated in terms of mean acquisition time using state transition diagram for acquisition process. To apply for a DS/CDMA mobile cellular environments, multiple access interference and imperfection of power control are taken into account in the analysis of acquisition performance. The imperfect power control is considered by modelling the power of each user to be lognormally distributed about nominal received power. From the simulation results, it is shown that for the cases of perfect and imperfect power control, the interference suppression filter is very effective for supprssion of the NBI and rapid PN code acquisition in a DS/CDMA overlay environment. It is also shown that the one-sided tap number of 5 for interference suppression filter is sufficient to suppress the NBI. And, capacity estimates are compared based on acquisition and BER performance. The analysis in this paper can be applied to the practical situations for a DS/CDMA overlay environment.},
keywords={},
doi={},
ISSN={},
month={August},}
부
TY - JOUR
TI - Narrowband Interference Suppression for PN Code Acquisition in a DS/CDMA Overlay Environment
T2 - IEICE TRANSACTIONS on Communications
SP - 1631
EP - 1639
AU - Jin Young KIM
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2000
AB - In this paper, performance of a PN code acquisition scheme is analyzed and simulated for a DS/CDMA overlay system where a CDMA user and a narrowband user coexist in the same frequency band. A narrowband user is modelled as a narrowband interference (NBI) located at the fraction of a CDMA user's bandwidth. To suppress the NBI, an interference suppression filter is employed at the receiver frontend. Acquisition performance is evaluated in terms of mean acquisition time using state transition diagram for acquisition process. To apply for a DS/CDMA mobile cellular environments, multiple access interference and imperfection of power control are taken into account in the analysis of acquisition performance. The imperfect power control is considered by modelling the power of each user to be lognormally distributed about nominal received power. From the simulation results, it is shown that for the cases of perfect and imperfect power control, the interference suppression filter is very effective for supprssion of the NBI and rapid PN code acquisition in a DS/CDMA overlay environment. It is also shown that the one-sided tap number of 5 for interference suppression filter is sufficient to suppress the NBI. And, capacity estimates are compared based on acquisition and BER performance. The analysis in this paper can be applied to the practical situations for a DS/CDMA overlay environment.
ER -