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
Cet article propose une nouvelle structure de canal CDMA cohérente pour la liaison montante avec un pilote de rafale échelonné et son algorithme de détection. Dans la liaison montante, les mobiles d'une cellule partagent un canal pilote en transmettant des rafales périodiques dans des intervalles de temps qui ne se chevauchent pas, ce qui permet une détection cohérente. Nous analysons la capacité de liaison montante et en déduisons la formule de capacité. L'estimateur de canal double mode (DMCE) comprend une estimation de canal basée sur le pilote (PBCE) et une estimation de canal basée sur les données (DBCE). L'algorithme DMCE proposé est très stable en présence de bruit gaussien et de décalage Doppler car la rafale pilote lance périodiquement l'opération DMCE. Une perte négligeable (0.068 dB) en Eb/N0 résulte de l’introduction du pilote de rafale. Par rapport à une détection cohérente idéale (0 km/h), la Eb/N0 en décalage Doppler, correspondant à la vitesse de 160 km/h, est dégradé de moins de 2.0 dB. Le résultat de la simulation montre également une capacité de canal accrue. Le pilote en rafale peut être mis en œuvre sans complexité supplémentaire même si des corrélateurs supplémentaires sont nécessaires pour le DMCE. Cette amélioration est significative par rapport aux études publiées précédemment sur des détecteurs CDMA cohérents avec des pilotes non partagés.
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Jongray NA, Changsu LEE, Yanggi KANG, "Dual Mode Channel Estimation for Coherent Detection of CDMA Uplink with Staggered Burst Pilot" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 10, pp. 2786-2796, October 2001, doi: .
Abstract: This paper proposes a new coherent CDMA channel structure for the uplink with staggered burst pilot and its detection algorithm. In the uplink, mobiles in a cell share a pilot channel by transmitting periodic bursts in nonoverlapping time slots, which enables coherent detection. We analyze the uplink capacity and derive the capacity formula. The dual mode channel estimator (DMCE) consists of pilot-based channel estimation (PBCE) and data-based channel estimation (DBCE). The proposed DMCE algorithm is very stable in the presence of Gaussian noise and Doppler shift because the pilot burst initiates the DMCE operation periodically. A negligible loss (0.068 dB) in Eb/N0 results from the introduction of the burst pilot. When compared with ideal (0 km/h) coherent detection, the required Eb/N0 in Doppler shift, corresponding to the speed of 160 km/h, is degraded less than 2.0 dB. The simulation result also shows increased channel capacity. The burst pilot can be implemented without added complexity even though some extra correlators are needed for the DMCE. This improvement is significant compared to previously published studies of coherent CDMA detectors with non-shared pilots.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_10_2786/_p
Copier
@ARTICLE{e84-b_10_2786,
author={Jongray NA, Changsu LEE, Yanggi KANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Dual Mode Channel Estimation for Coherent Detection of CDMA Uplink with Staggered Burst Pilot},
year={2001},
volume={E84-B},
number={10},
pages={2786-2796},
abstract={This paper proposes a new coherent CDMA channel structure for the uplink with staggered burst pilot and its detection algorithm. In the uplink, mobiles in a cell share a pilot channel by transmitting periodic bursts in nonoverlapping time slots, which enables coherent detection. We analyze the uplink capacity and derive the capacity formula. The dual mode channel estimator (DMCE) consists of pilot-based channel estimation (PBCE) and data-based channel estimation (DBCE). The proposed DMCE algorithm is very stable in the presence of Gaussian noise and Doppler shift because the pilot burst initiates the DMCE operation periodically. A negligible loss (0.068 dB) in Eb/N0 results from the introduction of the burst pilot. When compared with ideal (0 km/h) coherent detection, the required Eb/N0 in Doppler shift, corresponding to the speed of 160 km/h, is degraded less than 2.0 dB. The simulation result also shows increased channel capacity. The burst pilot can be implemented without added complexity even though some extra correlators are needed for the DMCE. This improvement is significant compared to previously published studies of coherent CDMA detectors with non-shared pilots.},
keywords={},
doi={},
ISSN={},
month={October},}
Copier
TY - JOUR
TI - Dual Mode Channel Estimation for Coherent Detection of CDMA Uplink with Staggered Burst Pilot
T2 - IEICE TRANSACTIONS on Communications
SP - 2786
EP - 2796
AU - Jongray NA
AU - Changsu LEE
AU - Yanggi KANG
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2001
AB - This paper proposes a new coherent CDMA channel structure for the uplink with staggered burst pilot and its detection algorithm. In the uplink, mobiles in a cell share a pilot channel by transmitting periodic bursts in nonoverlapping time slots, which enables coherent detection. We analyze the uplink capacity and derive the capacity formula. The dual mode channel estimator (DMCE) consists of pilot-based channel estimation (PBCE) and data-based channel estimation (DBCE). The proposed DMCE algorithm is very stable in the presence of Gaussian noise and Doppler shift because the pilot burst initiates the DMCE operation periodically. A negligible loss (0.068 dB) in Eb/N0 results from the introduction of the burst pilot. When compared with ideal (0 km/h) coherent detection, the required Eb/N0 in Doppler shift, corresponding to the speed of 160 km/h, is degraded less than 2.0 dB. The simulation result also shows increased channel capacity. The burst pilot can be implemented without added complexity even though some extra correlators are needed for the DMCE. This improvement is significant compared to previously published studies of coherent CDMA detectors with non-shared pilots.
ER -