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
Les systèmes de diversité de transmission basés sur le codage par blocs spatio-temporels orthogonaux (OSTBC) souffrent généralement d'une perte de débit et d'un étalement de puissance. Un schéma de sélection d'antenne approprié peut aider à utiliser plus efficacement les antennes d'émission et la puissance d'émission dans de tels systèmes. Dans cet article, nous proposons un nouveau schéma de sélection d'antenne pour de tels systèmes basé sur l'idée de commutation d'antenne. En particulier, dans le but de réduire le nombre de canaux pilotes et de chaînes RF, l'émetteur remplace désormais les antennes ayant le SNR reçu le plus faible par des antennes inutilisées si le SNR de sortie du décodeur spatio-temporel au niveau du récepteur est inférieur à un certain seuil. Avec ce nouveau schéma, non seulement le nombre de canaux pilotes et de chaînes RF à mettre en œuvre est réduit, mais la quantité moyenne d'informations de retour est également réduite. Pour analyser les performances de ce schéma, nous dérivons la forme fermée intégrale exacte de la fonction de densité de probabilité (PDF) du SNR reçu. Nous montrons à travers des exemples numériques que le schéma proposé offre de meilleures performances que les systèmes OSTBC traditionnels utilisant toutes les antennes d'émission disponibles, avec une petite quantité d'informations de retour. Nous examinons également l'effet de différentes configurations d'antenne et de retards de rétroaction.
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Ki-Hong PARK, Hong-Chuan YANG, Young-Chai KO, "Performance Analysis of Transmit Diversity Systems with Multiple Antenna Replacement" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 10, pp. 3281-3287, October 2008, doi: 10.1093/ietcom/e91-b.10.3281.
Abstract: Transmit diversity systems based on orthogonal space-time block coding (OSTBC) usually suffer from rate loss and power spreading. Proper antenna selection scheme can help to more effectively utilize the transmit antennas and transmission power in such systems. In this paper, we propose a new antenna selection scheme for such systems based on the idea of antenna switching. In particular, targeting at reducing the number of pilot channels and RF chains, the transmitter now replaces the antennas with the lowest received SNR with unused ones if the output SNR of space time decoder at the receiver is below a certain threshold. With this new scheme, not only the number of pilot channels and RF chains to be implemented is decreased, the average amount of feedback information is also reduced. To analyze the performance of this scheme, we derive the exact integral closed form for the probability density function (PDF) of the received SNR. We show through numerical examples that the proposed scheme offers better performance than traditional OSTBC systems using all available transmitting antennas, with a small amount of feedback information. We also examine the effect of different antenna configuration and feedback delay.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.10.3281/_p
Copier
@ARTICLE{e91-b_10_3281,
author={Ki-Hong PARK, Hong-Chuan YANG, Young-Chai KO, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance Analysis of Transmit Diversity Systems with Multiple Antenna Replacement},
year={2008},
volume={E91-B},
number={10},
pages={3281-3287},
abstract={Transmit diversity systems based on orthogonal space-time block coding (OSTBC) usually suffer from rate loss and power spreading. Proper antenna selection scheme can help to more effectively utilize the transmit antennas and transmission power in such systems. In this paper, we propose a new antenna selection scheme for such systems based on the idea of antenna switching. In particular, targeting at reducing the number of pilot channels and RF chains, the transmitter now replaces the antennas with the lowest received SNR with unused ones if the output SNR of space time decoder at the receiver is below a certain threshold. With this new scheme, not only the number of pilot channels and RF chains to be implemented is decreased, the average amount of feedback information is also reduced. To analyze the performance of this scheme, we derive the exact integral closed form for the probability density function (PDF) of the received SNR. We show through numerical examples that the proposed scheme offers better performance than traditional OSTBC systems using all available transmitting antennas, with a small amount of feedback information. We also examine the effect of different antenna configuration and feedback delay.},
keywords={},
doi={10.1093/ietcom/e91-b.10.3281},
ISSN={1745-1345},
month={October},}
Copier
TY - JOUR
TI - Performance Analysis of Transmit Diversity Systems with Multiple Antenna Replacement
T2 - IEICE TRANSACTIONS on Communications
SP - 3281
EP - 3287
AU - Ki-Hong PARK
AU - Hong-Chuan YANG
AU - Young-Chai KO
PY - 2008
DO - 10.1093/ietcom/e91-b.10.3281
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2008
AB - Transmit diversity systems based on orthogonal space-time block coding (OSTBC) usually suffer from rate loss and power spreading. Proper antenna selection scheme can help to more effectively utilize the transmit antennas and transmission power in such systems. In this paper, we propose a new antenna selection scheme for such systems based on the idea of antenna switching. In particular, targeting at reducing the number of pilot channels and RF chains, the transmitter now replaces the antennas with the lowest received SNR with unused ones if the output SNR of space time decoder at the receiver is below a certain threshold. With this new scheme, not only the number of pilot channels and RF chains to be implemented is decreased, the average amount of feedback information is also reduced. To analyze the performance of this scheme, we derive the exact integral closed form for the probability density function (PDF) of the received SNR. We show through numerical examples that the proposed scheme offers better performance than traditional OSTBC systems using all available transmitting antennas, with a small amount of feedback information. We also examine the effect of different antenna configuration and feedback delay.
ER -