Faculty Profiles - DENNO Satoshi

MISC - DENNO Satoshi

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Technology Exhibit : Collaborative MIMO Receiver Exploiting Higher-Frequency Bands

116 ( 276 ) 33 - 37 2016.10

R&D Activities for 5G in IEICE Technical Committee on Radio Communication Systems in FY2015 : Multi-Antenna Technologies and Advanced Modulation/Multiple Access Schemes (無線通信システム)

Sanada Yukitoshi, Denno Satoshi, Murata Hidekazu, Nishimura Toshihiko, Tandai Tomoya, Okazaki Akihiro, Suyama Satoshi, Mashino Jun, Yamamoto Tetsuya, Taromaru Makoto

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 116 ( 147 ) 177 - 182 2016.7

A Study on Helper MIMO and Its Decoding Procedure

116 ( 62 ) 101 - 106 2016.5

B-5-129 The Effect of Non-Linear Distortion Compensation in LED Visible Light Communications

Kumagai Takaaki, Matsuno Hiroaki, Tomisato Shigeru, Denno Satoshi, Hata Masaharu, Furuno Tatsuo, Oda Yasuhiro

Proceedings of the IEICE General Conference 2016 ( 1 ) 522 - 522 2016.3

B-5-116 Complexity Reduction Techniques in Receivers with Adaptive Selection of Extended Rotation Matrix used for Virtual Channels

Denno Satoshi, Kitamoto Akihiro

Proceedings of the IEICE General Conference 2016 ( 1 ) 509 - 509 2016.3

B-5-115 16QAM Receiver Constitution Method of Applying the Virtual Channel for Overload MIMO-OFDM Systems

Sawada Ryosuke, Denno Satoshi

Proceedings of the IEICE General Conference 2016 ( 1 ) 508 - 508 2016.3

B-8-60 A Study of Wideband OQPSK and Its Frequency Domain Equalization

Hiramoto Kazuki, Umehara Daisuke, Murata Hidekazu, Denno Satoshi

Proceedings of the IEICE General Conference 2016 ( 2 ) 259 - 259 2016.3

B-5-134 MU-MIMO system used THP with Cholesky factorizationof selected user by random access in uplink and performance

Baba Tomoyuki, Denno Satoshi

Proceedings of the IEICE General Conference 2016 ( 1 ) 527 - 527 2016.3

B-19-14 Transmission Performance of Single Carrier Visible Light Communication systems with Frequency Domain Equalization

Denno Satoshi, Fujitaka Shunsuke, Furuno Tatsuo, Oda Yasuhiro

Proceedings of the IEICE General Conference 2016 ( 2 ) 576 - 576 2016.3

端末連携受信方式における特性改善法の検討 (短距離無線通信)

川口悠太, 田野哲, 村田英一

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 115 ( 275 ) 1 - 5 2015.10

A MIMO Receiver with Extended Rotation Matrix Adaptive to Wireless channels

115 ( 2 ) 59 - 63 2015.4

5GHz Band OFDM Packet Transmission Characteristics Using USRP

NAKAO Satoshi, UMEHARA Daisuke, MURATA Hidekazu, DENNO Satoshi

IEICE technical report. Circuits and systems 114 ( 462 ) 19 - 24 2015.2

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

In this manuscript, an orthogonal frequency division multiplexing (OFDM) packet wireless communication system is implemented towards constructing a testbed for cooperative wireless communication systems. The system is composed of software defined radio (SDR) with universal software radio peripheral (USRP) and GNU Radio. OFDM modulation is constructed by the 1/4 scale model of IEEE802.11a standard. The observed OFDM frequency spectrum is compared with the spectrum mask of IEEE802.11a standard so that windowing is required to agree with it. Furthermore, the estimated channel state information (CSI) is shown in amplitude and phase spectrum to compensate the multipath fading. The experimental results show that the received sensitivity of -59 dBm attains at the packet error rate (PER) of 1% when subcarriers are modulated by quadrature phase shift keying (QPSK) and the received sensitivity of -61 dBm attains at 1% PER when subcarriers are modulated by binary PSK (BPSK).

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Power Control of THP used Bi-directional MIMO Relay System

CAO Lengchi, DENNO Satoshi

Technical report of IEICE. RCS 114 ( 395 ) 175 - 180 2015.1

Language：English Publisher：The Institute of Electronics, Information and Communication Engineers

Bi-directional wireless relaying has been demonstrated to raise transmission throughput intensively as large as twice in throughput by applying physical layer network coding (PNC) when a pair of terminals exchange information via relay. With the aim to enhance the performance of relay system based on decode-and-amplify (DF) strategy, we propose a power control (PC) structure applied in Tomlinson-Harashima precoding (THP) used PNC scheme. The PC structure can be realized by adding a simple filter, aiming to control the transmission power without increasing bit error rate (BER). It is proved that the proposed PC structure can significantly reduce both transmission power and BER of bi-directional MIMO relay system, showing better performance than THP used PNC without PC structure.

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MIMO Receivers with Virtual Channels

DENNO Satoshi

IEICE technical report. Signal processing 114 ( 394 ) 103 - 108 2015.1

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

The more signal streams than receive antennas are spatially multiplexed in overloaded multiple-input-multiple-output (MIMO) Spatial multiplexing which potentially enables wireless systems to achieve higher speed transmission. In overloaded MIMO systems, most conventional MIMO linear detectors have very poor transmission performance. In contrast with them, nonlinear detectors such as the maximum likelihood detector (MLD) achieve superior performance even in overloaded MIMO systems. On the other hand, MIMO receivers with virtual channels that achieve superior performance, even though the MIMO receiver can be implemented with much lower computational complexity than the MLD. Basically, the transmission signal vector is decomposed into a real signal vector and a rotation matrix in the receiver. The MIMO receiver with virtual channels comprises a linear detector to regenerate the real signal of the transmission signal and nonlinear detector to search the rotation matrix. The paper describes techniques to improve the real signal detection performance and the virtual channel detection performance. Performance of these techniques are evaluated by computer simulation.

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Power Control of THP used Bi-directional MIMO Relay System

CAO Lengchi, DENNO Satoshi

IEICE technical report. Signal processing 114 ( 394 ) 175 - 180 2015.1

Language：English Publisher：The Institute of Electronics, Information and Communication Engineers

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A MIMO receiver for trellis coded 16QAM with virtual channels

OSAI Hidenori, DENNO Satoshi

IEICE technical report. Signal processing 114 ( 394 ) 135 - 140 2015.1

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

In this paper, we propose a MIMO receiver for the 16QAM modulation scheme by trellis coding. In the proposed system, it have take advantage of the trellis coded 16QAM that captures as an integral multi-level modulation 16QAM and coding. It is an effective method in that it allows high-speed communication while has a coding gain. To detect the stream When the number of receive antennas is less than that of transmit antennas, the virtual channels are introduced in the proposed receiver. Furthermore, this paper proposed to apply a gain-factor for the proposes receiver to employ the lattice-reduction for the virtual channels. While the use of virtual channels improves the transmission performance, the lattice-reduction makes it possible to detect more signal streams. In this paper, I was evaluated by computer simulation for BER characteristics and multiplication cost of the proposed MIMO receiver.

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Turbo coded successive detector with virtual channels for MIMO-OFDM Reviewed

Akihito Taya, Satoshi Denno, Koji Yamamoto, Masahiro Morikura, Daisuke Umehara, Hidekazu Murata, Susumu Yoshida

2012 IEEE International Conference on Wireless Information Tech nology and Systems, Maui, Hawaii 1 1 - 5 2012.12

Applicability of distributed transmit power control based on uplink-downlink duality to multi-user distributed antenna systems Reviewed

Shigemasa Kumagawa, Koji Yamamoto, Hidekazu Murata, Susumu Yoshida, Daisuke Umehara, Satoshi Denno, Masahiro Morikura

IEEE International Conference on Communication Systems (ICCS 2012), Singapore 2012.11

Field Propagation Measurements for Multi-user MIMO Transmission Experiments on 5GHz Band

YOSHIKAWA Kenichi, TANIGUCHI Masato, MURATA Hidekazu, YOSHIDA Susumu, YAMAMOTO Koji, UMEHARA Daisuke, DENNO Satoshi, MORIKURA Masahiro

111 ( 403 ) 55 - 60 2012.1

Highly Accurate Estimation of Frequency Offset under Co-Channel Interference Conditions

MATSUMOTO Yuya, DENNO Satoshi, TOMISATO Shigeru, HATA Masaharu

111 ( 403 ) 115 - 120 2012.1

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