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
Cet article propose une transmission OFDMA distribuée au niveau des blocs de ressources (RB) avec ND-division en blocs afin d'obtenir l'effet de diversité de fréquence même pour le trafic à faible débit (ici ND indique le nombre de RB virtuels au sein d'un RB physique) dans la liaison descendante Evolved UTRA. Plus précisément, nous proposons une règle de contrainte telle que la transmission distribuée soit multiplexée dans un RB physique différent de celui de la transmission localisée afin d'obtenir la même affectation de ressources et un décodage indépendant entre les transmissions distribuées et localisées. Sur la base de la règle proposée, un RB virtuel pour la transmission distribuée est segmenté en ND blocs de taille 1/ND du RB virtuel original. Puis le ND blocs virtuels de taille 1/ND sont mappés ensemble dans chacun ND RB physique de manière distribuée, ce qui entraîne un grand effet de diversité de fréquence. Les calculs numériques montrent que la transmission distribuée au niveau RB par bloc peut réduire le nombre de bits de signalisation de contrôle requis pour l'attribution des ressources par rapport au schéma de transmission distribuée au niveau de la sous-porteuse, qui offre les meilleures performances. De plus, une simulation au niveau du système montre que la perte de débit de cellule utilisant la transmission distribuée au niveau RB par bloc par rapport à celle utilisant la transmission au niveau de la sous-porteuse n'est que de 3 à 4 % lorsque la charge du canal est de 0.5 à 1.0. c'est-à-dire que la perte maximale est de 3 à 4 % à environ 90 % dans la fonction de distribution cumulative (CDF).
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Copier
Satoshi NAGATA, Yoshiaki OFUJI, Yoshihisa KISHIYAMA, Nobuhiko MIKI, Kenichi HIGUCHI, Mamoru SAWAHASHI, "Block-Wise Resource Block-Level Distributed Transmission for Shared Data Channel in OFDMA Evolved UTRA Downlink" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 5, pp. 1660-1668, May 2009, doi: 10.1587/transcom.E92.B.1660.
Abstract: This paper proposes block-wise resource block (RB)-level distributed OFDMA transmission with ND-block division in order to obtain the frequency diversity effect even for low-rate traffic (here ND indicates the number of virtual RBs within one physical RB) in Evolved UTRA downlink. More specifically, we propose a constraint rule such that distributed transmission is multiplexed into a different physical RB from that of localized transmission in order to achieve the same resource assignment and independent decoding between the distributed and localized transmissions. Based on the proposed rule, a virtual RB for distributed transmission is segmented into ND blocks with the size of 1/ND of the original virtual RB. Then, the ND virtual blocks with the size of 1/ND are mapped together into each ND physical RB in a distributed manner, resulting in a large frequency diversity effect. Numerical calculations show that the block-wise RB-level distributed transmission can reduce the number of control signaling bits required for resource assignment compared to the subcarrier-level distributed transmission scheme, which provides the best performance. Moreover, a system-level simulation shows that the loss in the cell throughput employing the block-wise RB-level distributed transmission compared to that using the subcarrier-level transmission is only within 3-4% when the channel load is 0.5 and 1.0, i.e., the maximum loss is 3-4% at approximately 90% in the cumulative distribution function (CDF).
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1660/_p
Copier
@ARTICLE{e92-b_5_1660,
author={Satoshi NAGATA, Yoshiaki OFUJI, Yoshihisa KISHIYAMA, Nobuhiko MIKI, Kenichi HIGUCHI, Mamoru SAWAHASHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Block-Wise Resource Block-Level Distributed Transmission for Shared Data Channel in OFDMA Evolved UTRA Downlink},
year={2009},
volume={E92-B},
number={5},
pages={1660-1668},
abstract={This paper proposes block-wise resource block (RB)-level distributed OFDMA transmission with ND-block division in order to obtain the frequency diversity effect even for low-rate traffic (here ND indicates the number of virtual RBs within one physical RB) in Evolved UTRA downlink. More specifically, we propose a constraint rule such that distributed transmission is multiplexed into a different physical RB from that of localized transmission in order to achieve the same resource assignment and independent decoding between the distributed and localized transmissions. Based on the proposed rule, a virtual RB for distributed transmission is segmented into ND blocks with the size of 1/ND of the original virtual RB. Then, the ND virtual blocks with the size of 1/ND are mapped together into each ND physical RB in a distributed manner, resulting in a large frequency diversity effect. Numerical calculations show that the block-wise RB-level distributed transmission can reduce the number of control signaling bits required for resource assignment compared to the subcarrier-level distributed transmission scheme, which provides the best performance. Moreover, a system-level simulation shows that the loss in the cell throughput employing the block-wise RB-level distributed transmission compared to that using the subcarrier-level transmission is only within 3-4% when the channel load is 0.5 and 1.0, i.e., the maximum loss is 3-4% at approximately 90% in the cumulative distribution function (CDF).},
keywords={},
doi={10.1587/transcom.E92.B.1660},
ISSN={1745-1345},
month={May},}
Copier
TY - JOUR
TI - Block-Wise Resource Block-Level Distributed Transmission for Shared Data Channel in OFDMA Evolved UTRA Downlink
T2 - IEICE TRANSACTIONS on Communications
SP - 1660
EP - 1668
AU - Satoshi NAGATA
AU - Yoshiaki OFUJI
AU - Yoshihisa KISHIYAMA
AU - Nobuhiko MIKI
AU - Kenichi HIGUCHI
AU - Mamoru SAWAHASHI
PY - 2009
DO - 10.1587/transcom.E92.B.1660
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2009
AB - This paper proposes block-wise resource block (RB)-level distributed OFDMA transmission with ND-block division in order to obtain the frequency diversity effect even for low-rate traffic (here ND indicates the number of virtual RBs within one physical RB) in Evolved UTRA downlink. More specifically, we propose a constraint rule such that distributed transmission is multiplexed into a different physical RB from that of localized transmission in order to achieve the same resource assignment and independent decoding between the distributed and localized transmissions. Based on the proposed rule, a virtual RB for distributed transmission is segmented into ND blocks with the size of 1/ND of the original virtual RB. Then, the ND virtual blocks with the size of 1/ND are mapped together into each ND physical RB in a distributed manner, resulting in a large frequency diversity effect. Numerical calculations show that the block-wise RB-level distributed transmission can reduce the number of control signaling bits required for resource assignment compared to the subcarrier-level distributed transmission scheme, which provides the best performance. Moreover, a system-level simulation shows that the loss in the cell throughput employing the block-wise RB-level distributed transmission compared to that using the subcarrier-level transmission is only within 3-4% when the channel load is 0.5 and 1.0, i.e., the maximum loss is 3-4% at approximately 90% in the cumulative distribution function (CDF).
ER -