A single-chip GaAs RF transceiver for 1.9-GHz digital mobile communication systems. - Kazuya Yamamoto; Kosei Maemura; Nobuyuki Kasai; Yutaka Yoshii; Yukio Miyazaki; Masatoshi Nakayama; Noriko Ogata; Tadashi Takagi; Mutsuyuki Otsubo (IEEE J. Solid State Circuits, 1996)

A 12-ps-resolution digital variable-delay macro cell on GaAs 100 K-gates gate array using a meshed air bridge structure. - Akira Ohta; Norio Higashisaka; Tetsuya Heima; Takayuki Hisaka; Hirofumi Nakano; Ryuji Ohmura; Tadashi Takagi; Noriyuki Tanino (IEEE J. Solid State Circuits, 1999)

A Millimeter-Wave Pulse Transmitter with a Harmonic Mixer. - Kenji Kawakami; Hiroshi Ikematsu; Koichi Matsuo; Naohisa Uehara; Moriyasu Miyazaki; Tadashi Takagi (IEICE Trans. Electron., 2005)

High-Speed and Large-Capacity RFID Inventory Method Using 1-Bit Flag. - Suguru Kameda; Atsuyoshi Yamaguchi; Satoru Fukuyo; Hiroshi Oguma; Hiroyuki Nakase; Tadashi Takagi; Kazuo Tsubouchi (ISWCS, 2006)

An Even Harmonic Quadrature Mixer with a Simple Filter Configuration and an Integrated LTCC Module for W-CDMA Direct Conversion Receiver. - Mitsuhiro Shimozawa; Kenichi Maeda; Eiji Taniguchi; Keiichi Sadahiro; Takayuki Ikushima; Tamotsu Nishino; Noriharu Suematsu; Kenji Itoh; Yoji Isota; Tadashi Takagi (IEICE Trans. Electron., 2006)

Evaluation of High-Speed and Large-Capacity RFID Inventory Method using 1-Bit Flag. - Suguru Kameda; Satoru Fukuyo; Atsuyoshi Yamaguchi; Hiroshi Oguma; Hiroyuki Nakase; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2007)

The 60GHz Band Multi-Carrier Wireless System for 2Gbps Transmission with Constant Envelope Modulation. - Shoichi Oshima; Goro Mori; Hiroshi Oguma; Suguru Kameda; Hiroyuki Nakase; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2007)

Efficiency Enhancement of a Digital Predistortion Doherty Amplifier Transmitter Using a Virtual Open Stub Technique. - Kenichi Horiguchi; Satoru Ishizaka; Masatoshi Nakayama; Ryoji Hayashi; Yoji Isota; Tadashi Takagi (IEICE Trans. Electron., 2007)

Measured downlink throughput performance of MBWA system in urban area. - Hiroshi Oguma; Suguru Kameda; Noboru Izuka; Yasuyoshi Asano; Yoshiharu Yamazaki; Tadashi Takagi; Kazuo Tsubouchi (ISWCS, 2008)

Improvement of bit error rate using channel interleaving for channel binding WLAN prototype. - Hiroyuki Nakase; Hiroshi Oguma; Suguru Kameda; Tadashi Takagi; Kazuo Tsubouchi; Mari Ochiai; Yukimasa Nagai; Akinori Fujimura; Yoji Isota (PIMRC, 2008)

Implementation of Single Carrier Packet Transmission with Frequency Domain Equalization. - Valentin Gheorghiu; Suguru Kameda; Tadashi Takagi; Kazuo Tsubouchi; Fumiyuki Adachi (VTC Fall, 2008)

5GHz Si-CMOS differential power amplifier module with directly connected dipole antenna. - Kazuya Shimoyama; Satoshi Yoshida; Tuan Thanh Ta; Keisuke Matsuzaki; Hiroshi Oguma; Suguru Kameda; Hiroyuki Nakase; Tadashi Takagi; Kazuo Tsubouchi (IEICE Electron. Express, 2008)

Investigation on single-carrier and multi-carrier hybrid system for uplink. - Ikuro Kashiwamura; Shunsuke Tomita; Kazuhiro Komatsu; Ngoc Hao Tran; Hiroshi Oguma; Noboru Izuka; Suguru Kameda; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2009)

Uplink throughput performance of FH-OFDMA improved by 16 QAM: Effect estimation and validation in MBWA system field trial. - Hiroshi Oguma; Suguru Kameda; Tadashi Takagi; Kazuo Tsubouchi; Noboru Izuka; Yasuyoshi Asano; Yoshiharu Yamazaki (PIMRC, 2009)

Hybrid single-carrier and multi-carrier system: Improving uplink throughput with optimally switching modulation. - Shunsuke Tomita; Yuji Miyake; Ikuro Kashiwamura; Kazuhiro Komatsu; Ngoc Hao Tran; Hiroshi Oguma; Noboru Izuka; Suguru Kameda; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2010)

Coverage Estimation of Uplink 16 QAM Signal up to 20 MHz Bandwidth Based on Field Trial Results of FH-OFDMA System. - Hiroshi Oguma; Suguru Kameda; Tadashi Takagi; Kazuo Tsubouchi; Noboru Izuka; Yasuyoshi Asano; Yoshiharu Yamazaki (WCNC, 2010)

5GHz band low phase noise Si-CMOS oscillator using FBAR. - Shoichi Tanifuji; Tuan Thanh Ta; Suguru Kameda; Tadashi Takagi; Kazuo Tsubouchi (IEICE Electron. Express, 2010)

A 5 GHz Band Low Noise and Wide Tuning Range Si-CMOS VCO with a Novel Varactors Pair Circuit. - Tuan Thanh Ta; Suguru Kameda; Tadashi Takagi; Kazuo Tsubouchi (IEICE Trans. Electron., 2010)

Proposal of heterogeneous wireless communication network with soft handover in application layer: Feasibility study based on field trial results. - Suguru Kameda; Hiroshi Oguma; Noboru Izuka; Fumihiro Yamagata; Yasuyoshi Asano; Yoshiharu Yamazaki; Shoichi Tanifuji; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (CrownCom, 2011)

Coverage estimation of uplink 64 QAM signal up to 20 MHz bandwidth based on field trial results: coverage issue of broadband uplink signal. - Suguru Kameda; Hiroshi Oguma; Noboru Izuka; Yasuyoshi Asano; Yoshiharu Yamazaki; Kazuhiro Komatsu; Shoichi Tanifuji; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (WPMC, 2011)

Hybrid single-carrier and multi-carrier system: Widening uplink coverage with optimally selecting SDM or join FDE/antenna diversity. - Yuji Miyake; Kazumasa Kobayashi; Kazuhiro Komatsu; Shoichi Tanifuji; Hiroshi Oguma; Noboru Izuka; Suguru Kameda; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (WPMC, 2011)

Hybrid single-carrier and multi-carrier system: Evaluation of throughput with inter-cell interference. - Yuji Miyake; Fumihiro Yamagata; Hiroshi Oguma; Noboru Izuka; Suguru Kameda; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2012)

Proposal of Heterogeneous Wireless Network with Handover in Application Layer: Feasibility Study Based on Field Trial Results. - Suguru Kameda; Hiroshi Oguma; Noboru Izuka; Fumihiro Yamagata; Yasuyoshi Asano; Yoshiharu Yamazaki; Shoichi Tanifuji; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (IEICE Trans. Commun., 2012)

A 60 GHz-Band 3-Dimensional System-in-Package Transmitter Module with Integrated Antenna. - Noriharu Suematsu; Satoshi Yoshida; Shoichi Tanifuji; Suguru Kameda; Tadashi Takagi; Kazuo Tsubouchi (IEICE Trans. Electron., 2012)

60-GHz Band Copper Ball Vertical Interconnection for MMW 3-D System-in-Package Front-End Modules. - Satoshi Yoshida; Shoichi Tanifuji; Suguru Kameda; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (IEICE Trans. Electron., 2012)

ASIC implementation of multimode frequency domain equalizer for heterogeneous wireless system. - Yuji Miyake; Kazuhiro Komatsu; Hiroshi Oguma; Noboru Izuka; Suguru Kameda; Makoto Iwata; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2013)

Large-capacity QZSS location and short message system using Frame Slotted ALOHA with Flag Method. - Tomohide Takahashi; Yuji Miyake; Fumihiro Yamagata; Hiroshi Oguma; Suguru Kameda; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2013)

Measured Downlink Throughput Performance of MBWA System in Urban Area. - Suguru Kameda; Hiroshi Oguma; Noboru Izuka; Yasuyoshi Asano; Yoshiharu Yamazaki; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (IEICE Trans. Commun., 2013)

A Calibrationless Si-CMOS 5-bit Baseband Phase Shifter Using a Fixed-Gain-Amplifier Matrix. - Tuan Thanh Ta; Shoichi Tanifuji; Suguru Kameda; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (IEICE Trans. Electron., 2013)

A proposal of WLAN control scheme using separated channel. - Minzhi Huang; Yuji Miyake; Suguru Kameda; Akinori Taira; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2014)

A novel cell selection scheme using positioning information for heterogeneous wireless system. - Junpei Kuboniwa; Yuji Miyake; Suguru Kameda; Akinori Taira; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2014)

Hetero-plane beam synthesis using 60 GHz band 3-D phased array antenna module. - Yuya Suzuki; Satoshi Yoshida; Suguru Kameda; Noriharu Suematsu; Akinori Taira; Tadashi Takagi; Kazuo Tsubouchi (RWS, 2014)

Location-based virtual sector method for interference control in WLAN multicell environment. - Kohei Akimoto; Suguru Kameda; Akinori Taira; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (ICTC, 2015)

High efficient network selection scheme using location information for heterogeneous wireless system. - Junpei Kuboniwa; Yuji Miyake; Suguru Kameda; Akinori Taira; Hiroshi Oguma; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (WCNC Workshops, 2015)

1/2fs Direct RF Under Sampling Receiver for Multi Channel Satellite Systems. - Daliso Banda; Mizuki Motoyoshi; Tomokazu Koizumi; Osamu Wada; Tuan Thanh Ta; Suguru Kameda; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (IEICE Trans. Electron., 2015)

Experimental evaluation of timing synchronization accuracy for QZSS short message synchronized SS-CDMA communication. - Kei Ohya; Suguru Kameda; Hiroshi Oguma; Akinori Taira; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (PIMRC, 2016)

Efficient random access control scheme with reservation channel for QZSS short message SS-CDMA communication. - Kei Ohya; Tomohide Takahashi; Suguru Kameda; Hiroshi Oguma; Akinori Taira; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (WCNC, 2016)

Modeling indoor-outdoor propagation in wooden residential area at 2.5 GHz and 3.5 GHz bands. - Hideki Fukudome; Kohei Akimoto; Suguru Kameda; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (ICNC, 2017)

Evaluation of Synchronized SS-CDMA for QZSS Safety Confirmation System. - Suguru Kameda; Akinori Taira; Yuji Miyake; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi (IEEE Trans. Veh. Technol., 2019)