Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Yoshiaki Ofuji"'
Autor:
Satoshi Nagata, Yoshiaki Ofuji, Mamoru Sawahashi, Kenichi Higuchi, Yoshihisa Kishiyama, Nobuhiko Miki
Publikováno v:
IEICE Transactions on Communications. :1660-1668
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 physica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30712cd426371c37d4603c5781343f39
https://doi.org/10.1587/transcom.e92.b.1660
https://doi.org/10.1587/transcom.e92.b.1660
Publikováno v:
IEICE Transactions on Communications. :1714-1724
This paper investigates the uplink throughput performance and the interference power to other cells using an Evolved UTRA (E-UTRA) laboratory and field experimental system. In E-UTRA uplink, the near-far problem is not an issue since the orthgonality
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::320fcdb8d8f977865db8bd63e066f5ca
https://doi.org/10.1587/transcom.e92.b.1714
https://doi.org/10.1587/transcom.e92.b.1714
Publikováno v:
IEICE Transactions on Communications. :170-182
This paper proposes a unified packet scheduling method that considers the delay requirement of each traffic data packet whether real time (RT) or non-real time (NRT), the channel conditions of each accessing user, and the packet type in hybrid automa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c39cfe91a3edc90acec88a238295232e
https://doi.org/10.1093/ietcom/e88-b.1.170
https://doi.org/10.1093/ietcom/e88-b.1.170
Autor:
Masaru Mori, Satoru Fukumoto, Teppei Oyama, Atsushi Harada, Tsuyoshi Shimomura, Hideaki Takahashi, Yoshiaki Ofuji, Toshiyuki Ichinohe, Hiroyuki Seki, Kenji Arai, Takehiro Nakamura
Publikováno v:
2009 15th Asia-Pacific Conference on Communications.
We present field experiment results on multiple input multiple output (MIMO) precoding using orthogonal frequency division multiple access (OFDMA) in the E-UTRA downlink. We measured the throughput performance of 4×4 MIMO precoding with 1- to 4-stre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2b1836c58026caef1338d493059ec0f
https://doi.org/10.1109/apcc.2009.5375685
https://doi.org/10.1109/apcc.2009.5375685
Publikováno v:
VTC Spring
This paper investigates the effect of the antenna (polarization diversity (PD) or space diversity (SD)) configuration at evolved Node B and antenna angle of user equipment (UE) on the throughput performance of multiple input multiple output (MIMO) in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65925c6f08148965a0a44309213f9059
https://doi.org/10.1109/vetecs.2009.5073558
https://doi.org/10.1109/vetecs.2009.5073558
Publikováno v:
VTC Spring
This paper investigates the effect of precoding in multiple input multiple output (MIMO) transmission from the viewpoint of transmitter antenna configurations, i.e., space diversity (SD) or polarization diversity (PD), in field experiments using the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fef53977b0e53677c86442523cd5f062
https://doi.org/10.1109/vetecs.2009.5073557
https://doi.org/10.1109/vetecs.2009.5073557
Publikováno v:
VTC Fall
This paper investigates the effect of the bandwidth allocated to the physical downlink shared channel (PDSCH) and the amount of channel quality indicator (CQI) information that is feedback by the user equipment (UE) via the physical uplink control ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb0a80e50991b76d9cd608750dc4c1d0
https://doi.org/10.1109/vetecf.2008.327
https://doi.org/10.1109/vetecf.2008.327
Publikováno v:
2008 IEEE 68th Vehicular Technology Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ce3e2746406ae31450741f61ac1210a
https://doi.org/10.1109/vetecf.2008.330
https://doi.org/10.1109/vetecf.2008.330
Publikováno v:
VTC Spring
This paper presents the optimum resource block (RB) bandwidth for frequency and time domain channel-dependent scheduling based on system-level simulations in the downlink Orthogonal Frequency Division Multiplexing (OFDM) based radio access. The simul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4af704ed0204f29d954ceb5b8523efc2
https://doi.org/10.1109/vetecs.2006.1682805
https://doi.org/10.1109/vetecs.2006.1682805
Publikováno v:
VTC Spring
This paper proposes frequency and time domain channel-dependent scheduling employing an adaptive transmission bandwidth for the pilot channel for channel quality indication (CQI) measurement in the uplink single-carrier (SC)-FDMA radio access. In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4f80ba9bb0f86fb82d9e3f8fd805ca1
https://doi.org/10.1109/vetecs.2006.1682831
https://doi.org/10.1109/vetecs.2006.1682831