Tadashi Takagi

According to our database, Tadashi Takagi authored at least 39 papers between 1996 and 2019.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

2019

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

2017

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

Proceedings of the 2017 International Conference on Computing, 2017

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

Proceedings of the IEEE Wireless Communications and Networking Conference, 2016

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

Proceedings of the 27th IEEE Annual International Symposium on Personal, 2016

2015

1/2<i>f_s</i> 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

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

Proceedings of the 2015 IEEE Wireless Communications and Networking Conference Workshops, 2015

Location-based virtual sector method for interference control in WLAN multicell environment.

Kohei Akimoto, Suguru Kameda, Akinori Taira, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi

Proceedings of the International Conference on Information and Communication Technology Convergence, 2015

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

Proceedings of the 2014 IEEE Radio and Wireless Symposium, 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

Proceedings of the 25th IEEE Annual International Symposium on Personal, 2014

A proposal of WLAN control scheme using separated channel.

Minzhi Huang, Yuji Miyake, Suguru Kameda, Akinori Taira, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi

Proceedings of the 25th IEEE Annual International Symposium on Personal, 2014

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

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

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

Proceedings of the 24th IEEE Annual International Symposium on Personal, 2013

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

Proceedings of the 24th IEEE Annual International Symposium on Personal, 2013

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

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

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

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

Proceedings of the 23rd IEEE International Symposium on Personal, 2012

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

Proceedings of the 14th International Symposium on Wireless Personal Multimedia Communications, 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

Proceedings of the 14th International Symposium on Wireless Personal Multimedia Communications, 2011

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

Proceedings of the 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2011

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

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

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

Proceedings of the 2010 IEEE Wireless Communications and Networking Conference, 2010

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

Proceedings of the IEEE 21st International Symposium on Personal, 2010

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

Proceedings of the IEEE 20th International Symposium on Personal, 2009

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

Proceedings of the IEEE 20th International Symposium on Personal, 2009

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

Implementation of Single Carrier Packet Transmission with Frequency Domain Equalization.

Valentin Gheorghiu, Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi, Fumiyuki Adachi

Proceedings of the 68th IEEE Vehicular Technology Conference, 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

Proceedings of the IEEE 19th International Symposium on Personal, 2008

Measured downlink throughput performance of MBWA system in urban area.

Hiroshi Oguma, Suguru Kameda, Noboru Izuka, Yasuyoshi Asano, Yoshiharu Yamazaki, Tadashi Takagi, Kazuo Tsubouchi

Proceedings of the 2008 5th International Symposium on Wireless Communication Systems, 2008

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

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

Proceedings of the IEEE 18th International Symposium on Personal, 2007

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

Proceedings of the IEEE 18th International Symposium on Personal, 2007

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

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

Proceedings of the 3rd IEEE International Symposium on Wireless Communication Systems, 2006

2005

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

1999

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

1996

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