Výsledky vyhledávání - "Tatsunori Obara"

Interference-Aware Channel Segregation Based Dynamic Channel Assignment for Wireless Networks

Autor: Tatsunori Obara, Katsuhiro Temma, Yuki Matsumura, Fumiyuki Adachi, Ren Sugai, Tetsuya Yamamoto

Publikováno v: IEICE Transactions on Communications. :854-860

SUMMARY Recently, we proposed an interference-aware channel segregation based dynamic channel assignment (IACS-DCA). In IACS-DCA, each base station (BS) measures the instantaneous co-channel interference (CCI) power on each available channel, compute

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02c926ec7d0b9424688c8f0522dc0977
https://doi.org/10.1587/transcom.e98.b.854

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Joint Processing of Analog Fixed Beamforming and CSI-Based Precoding for Super High Bit Rate Massive MIMO Transmission Using Higher Frequency Bands

Autor: Tatsunori Obara, Yukihiko Okumura, Jiyun Shen, Satoshi Suyama

Publikováno v: IEICE Transactions on Communications. :1474-1481

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f6507e1cd35684a79d894d10de72aac
https://doi.org/10.1587/transcom.e98.b.1474

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Signal-Carrier Cooperative DF Relay Using Adaptive Modulation

Autor: Hiroyuki Miyazaki, Tatsunori Obara, Kazuhiro Kimura, Fumiyuki Adachi

Publikováno v: IEICE Transactions on Communications. :387-395

SUMMARY 2-time slot cooperative relay can be used to increase the cell-edge throughput. Adaptive data modulation further improves the throughput. In this paper, we introduce adaptive modulation to singlecarrier (SC) cooperative decode-and-forward (DF

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1872fae8bebe526e309cf8c3b1c4eee6
https://doi.org/10.1587/transcom.e97.b.387

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Joint Tx/Rx MMSE Filtering for Single-Carrier MIMO Transmission

Autor: Tetsuya Yamamoto, Tatsunori Obara, Shinya Kumagai, Fumiyuki Adachi

Publikováno v: IEICE Transactions on Communications. :1967-1976

In this paper, we propose a joint transmit and receive linear filtering based on minimum mean square error criterion (joint Tx/Rx MMSE filtering) for single-carrier (SC) multiple-input multiple-output (MIMO) transmission. Joint Tx/Rx MMSE filtering t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c5d8ddb6f23be705eebc24232ebc290
https://doi.org/10.1587/transcom.e97.b.1967

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Joint Transmit/Receive MMSE-FDE for Analog Network Coded Single-Carrier Bi-directional Multi-Antenna Relay

Autor: Hiroyuki Miyazaki, Tatsunori Obara, Fumiyuki Adachi

Publikováno v: IEICE Transactions on Communications. :3153-3162

In this paper, joint transmit/receive frequency-domain equalization (FDE) is proposed for analog network coded (ANC) singlecarrier (SC) bi-directional multi-antenna relay. In the proposed scheme, diversity transmission using transmit FDE is performed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b17c8ca3b06c7077fe3151dded256ce
https://doi.org/10.1587/transcom.e96.b.3153

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Outage Channel Capacity of Direct/Cooperative AF Relay Switched SC-FDMA Using Spectrum Division/Adaptive Subcarrier Allocation

Autor: Masayuki Nakada, Tetsuya Yamamoto, Fumiyuki Adachi, Tatsunori Obara

Publikováno v: IEICE Transactions on Communications. :1001-1011

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c23c2d14598cae6a166765f85bb5960
https://doi.org/10.1587/transcom.e96.b.1001

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Frequency-domain space-time block coded single-carrier distributed antenna network

Autor: Tatsunori Obara, Ryusuke Matsukawa, Fumiyuki Adachi

Publikováno v: IEICE Communications Express. 2:141-147

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6a24c7f2dc71c9fcfebd622514692a7
https://doi.org/10.1587/comex.2.141

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Experiment of 28 GHz Band 5G super wideband transmission using beamforming and beam tracking in high mobility environment

Autor: Satoshi Suyama, Yuuichi Aoki, Jae-kon Lee, Yuki Inoue, Yukihiko Okumurav, Tatsunori Obara

Publikováno v: PIMRC

This paper presents some results of experimental trial in high mobility environment for the 5th generation (5G) mobile communication systems using 28 GHz band. In order to tackle rapidly increasing traffic for 2020 and beyond, new radio access networ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::818da9e1f83af1d48cd781792a87b215
https://doi.org/10.1109/pimrc.2016.7794690

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Iterative Superimposed Pilot-Assisted Channel Estimation Using Sliding Wiener Filtering for Single-Carrier Block Transmission

Autor: Tatsunori Obara, Kazuki Takeda, Fumiyuki Adachi, Tetsuya Uchiumi

Publikováno v: IEICE Transactions on Communications. :924-932

In the conventional iterative superimposed pilot-assisted channel estimation (SI-PACE), simple averaging of the instantaneous channel estimates obtained by using the pilot over several single-carrier (SC) blocks (called the frame in this paper) is ta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64aac6e3e915f73a1c9b7304adcd971f
https://doi.org/10.1587/transcom.e95.b.924

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