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 étudie la configuration optimale de formation de faisceaux de réseau d'antennes adaptatives (AAA-BF) en tenant compte de l'effet de diversité fourni par la diversité de transmission (TD) dans un canal à évanouissements par trajets multiples dans la liaison aller W-CDMA. Les résultats de la simulation informatique montrent que le rapport de densité spectrale de puissance du signal de transmission requis par bit au bruit de fond (Eb/N0) au taux d'erreur de bloc moyen (BLER) de 10-2 l'utilisation du AAA-BF couplé au TD est diminuée d'environ 1.0 dB par rapport à celle du AAA-BF en supposant le même nombre d'antennes totales lorsque la capacité, c'est-à-dire le nombre d'utilisateurs simultanément hébergés avec une puissance de transmission proportionnelle au débit de symboles, est normalisée en traitant le gain, Pg, est inférieur à environ 20 %. Cependant, nous constatons que dans un canal limité en interférences, lorsque la capacité normalisée par Pg est supérieur à environ 30 %, l'AAA-BF utilisant toutes les antennes offre une capacité plus grande que l'AAA-BF couplé au TD en raison d'un effet de suppression d'interférence suffisant dû à une largeur de faisceau beaucoup plus étroite malgré l'absence d'effet de diversité d'antenne. Cet article explique également dans un modèle multicellulaire que l'AAA-BF employant toutes les antennes peut accueillir environ 1.5 fois plus d'utilisateurs avec un BLER moyen de 10.-2 et avec une probabilité de panne de 5%, par rapport au cas avec AAA-BF couplé avec TD, lorsque le nombre total d'antennes est de 8.
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Satoru FUKUMOTO, Taisuke IHARA, Mamoru SAWAHASHI, Iwao SASASE, "Evaluation of Optimum Adaptive Antenna Array Beam Forming Configuration Considering Diversity Effect in W-CDMA Forward Link" in IEICE TRANSACTIONS on Fundamentals,
vol. E85-A, no. 7, pp. 1594-1603, July 2002, doi: .
Abstract: This paper investigates the optimum adaptive antenna array beam forming (AAA-BF) configuration considering the diversity effect provided by transmit diversity (TD) in a multipath fading channel in the W-CDMA forward link. Computer simulation results show that the required transmit signal energy per bit-to-background noise power spectrum density ratio (Eb/N0) at the average block error rate (BLER) of 10-2 using AAA-BF coupled with TD is decreased by approximately 1.0 dB compared to that of AAA-BF assuming the identical number of total antennas when the capacity, i.e., the number of simultaneously accommodated users with the transmission power proportional to the symbol rate, normalized by processing gain, Pg, is below approximately 20%. However, we find that in an interference-limited channel, when the capacity normalized by Pg is above approximately 30%, AAA-BF employing all antennas accommodates a larger capacity compared to AAA-BF coupled with TD because of a sufficient interference suppression effect due to a much narrower beam width despite the absence of the antenna diversity effect. This paper also elucidates in a multi-cell model that AAA-BF employing all antennas can accommodate approximately 1.5 times more users with the average BLER of 10-2 and with the outage probability of 5%, compared to the case with AAA-BF coupled with TD, when the total number of antennas is 8.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e85-a_7_1594/_p
Copier
@ARTICLE{e85-a_7_1594,
author={Satoru FUKUMOTO, Taisuke IHARA, Mamoru SAWAHASHI, Iwao SASASE, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Evaluation of Optimum Adaptive Antenna Array Beam Forming Configuration Considering Diversity Effect in W-CDMA Forward Link},
year={2002},
volume={E85-A},
number={7},
pages={1594-1603},
abstract={This paper investigates the optimum adaptive antenna array beam forming (AAA-BF) configuration considering the diversity effect provided by transmit diversity (TD) in a multipath fading channel in the W-CDMA forward link. Computer simulation results show that the required transmit signal energy per bit-to-background noise power spectrum density ratio (Eb/N0) at the average block error rate (BLER) of 10-2 using AAA-BF coupled with TD is decreased by approximately 1.0 dB compared to that of AAA-BF assuming the identical number of total antennas when the capacity, i.e., the number of simultaneously accommodated users with the transmission power proportional to the symbol rate, normalized by processing gain, Pg, is below approximately 20%. However, we find that in an interference-limited channel, when the capacity normalized by Pg is above approximately 30%, AAA-BF employing all antennas accommodates a larger capacity compared to AAA-BF coupled with TD because of a sufficient interference suppression effect due to a much narrower beam width despite the absence of the antenna diversity effect. This paper also elucidates in a multi-cell model that AAA-BF employing all antennas can accommodate approximately 1.5 times more users with the average BLER of 10-2 and with the outage probability of 5%, compared to the case with AAA-BF coupled with TD, when the total number of antennas is 8.},
keywords={},
doi={},
ISSN={},
month={July},}
Copier
TY - JOUR
TI - Evaluation of Optimum Adaptive Antenna Array Beam Forming Configuration Considering Diversity Effect in W-CDMA Forward Link
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1594
EP - 1603
AU - Satoru FUKUMOTO
AU - Taisuke IHARA
AU - Mamoru SAWAHASHI
AU - Iwao SASASE
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E85-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 2002
AB - This paper investigates the optimum adaptive antenna array beam forming (AAA-BF) configuration considering the diversity effect provided by transmit diversity (TD) in a multipath fading channel in the W-CDMA forward link. Computer simulation results show that the required transmit signal energy per bit-to-background noise power spectrum density ratio (Eb/N0) at the average block error rate (BLER) of 10-2 using AAA-BF coupled with TD is decreased by approximately 1.0 dB compared to that of AAA-BF assuming the identical number of total antennas when the capacity, i.e., the number of simultaneously accommodated users with the transmission power proportional to the symbol rate, normalized by processing gain, Pg, is below approximately 20%. However, we find that in an interference-limited channel, when the capacity normalized by Pg is above approximately 30%, AAA-BF employing all antennas accommodates a larger capacity compared to AAA-BF coupled with TD because of a sufficient interference suppression effect due to a much narrower beam width despite the absence of the antenna diversity effect. This paper also elucidates in a multi-cell model that AAA-BF employing all antennas can accommodate approximately 1.5 times more users with the average BLER of 10-2 and with the outage probability of 5%, compared to the case with AAA-BF coupled with TD, when the total number of antennas is 8.
ER -