A novel UWB impulse-radio transmitter with all-digitally-controlled pulse generator. - Takayasu Norimatsu; Ryosuke Fujiwara; Masaru Kokubo; Masayuki Miyazaki; Yasuyuki Okuma; Miki Hayakawa; Shinsuke Kobayashi; Noboru Koshizuka; Ken Sakamura (ESSCIRC, 2005)

Rapid signal acquisition for low-rate carrier-based ultra-wideband impulse radio. - Ryosuke Fujiwara; M. Shida; Akira Maeki; Kenichi Mizugaki; Masaru Kokubo; Masayuki Miyazaki (ISCAS (5), 2005)

A UWB-IR Transmitter With Digitally Controlled Pulse Generator. - Takayasu Norimatsu; Ryosuke Fujiwara; Masaru Kokubo; Masayuki Miyazaki; Akira Maeki; Yuji Ogata; Shinsuke Kobayashi; Noboru Koshizuka; Ken Sakamura (IEEE J. Solid State Circuits, 2007)

1-cc computer using UWB-IR for wireless sensor network. - Tatsuo Nakagawa; Masayuki Miyazaki; Goichi Ono; Ryosuke Fujiwara; Takayasu Norimatsu; Takahide Terada; Akira Maeki; Yuji Ogata; Shinsuke Kobayashi; Noboru Koshizuka; Ken Sakamura (ASP-DAC, 2008)

0.7-GHz-Bandwidth DS-UWB-IR System for Low-Power Wireless Communications. - Ryosuke Fujiwara; Akira Maeki; Kenichi Mizugaki; Goichi Ono; Tatsuo Nakagawa; Takayasu Norimatsu; Masaru Kokubo; Masayuki Miyazaki; Yasuyuki Okuma; Miki Hayakawa; Shinsuke Kobayashi; Noboru Koshizuka; et al. (IEICE Trans. Commun., 2008)

1-cc Computer: Cross-Layer Integration With UWB-IR Communication and Locationing. - Tatsuo Nakagawa; Goichi Ono; Ryosuke Fujiwara; Takayasu Norimatsu; Takahide Terada; Masayuki Miyazaki; Kei Suzuki; Kazuo Yano; Yuji Ogata; Akira Maeki; Shinsuke Kobayashi; Noboru Koshizuka; et al. (IEEE J. Solid State Circuits, 2008)

UWB-IR Receiver with Accurate Time-interval-measurement Circuit for Communication/location System. - Tatsuo Nakagawa; Ryosuke Fujiwara; Goichi Ono; Masayuki Miyazaki (ISCAS, 2009)

Intermittent Operation Control Scheme for Reducing Power Consumption of UWB-IR Receiver. - Takahide Terada; Ryosuke Fujiwara; Goichi Ono; Takayasu Norimatsu; Tatsuo Nakagawa; Masayuki Miyazaki; Kei Suzuki; Kazuo Yano; Akira Maeki; Yuji Ogata; Shinsuke Kobayashi; Noboru Koshizuka; et al. (IEEE J. Solid State Circuits, 2009)

TOA/TDOA Hybrid Relative Positioning System Based on UWB-IR Technology. - Ryosuke Fujiwara; Kenichi Mizugaki; Tatsuo Nakagawa; Daisuke Maeda; Masayuki Miyazaki (IEICE Trans. Commun., 2011)

Accurate TOA Estimating UWB-IR Transceiver for Ranging System in Multi-Path Environment. - Ryosuke Fujiwara; Kenichi Mizugaki; Goichi Ono; Tatsuo Nakagawa; Takayasu Norimatsu; Takahide Terada; Akira Maeki; Masayuki Miyazaki (IEICE Trans. Commun., 2011)

UWB-IR Wireless Accurate Location System for Sensor Network. - Kenichi Mizugaki; Tatsuo Nakagawa; Ryosuke Fujiwara; Shinsuke Kobayashi; Noboru Koshizuka; Ken Sakamura (IEICE Trans. Commun., 2011)

Adaptive channel diversity method based on ISA100.11a standard for wireless industrial monitoring. - Masayuki Miyazaki; Ryosuke Fujiwara; Kenichi Mizugaki; Masaru Kokubo (RWS, 2012)

Verification of interference avoidance effect with Adaptive Channel Diversity method based on ISA100.11a standard. - Yasutaka Serizawa; Takashi Yano; Masayuki Miyazaki; Kenichi Mizugaki; Ryosuke Fujiwara; Masaru Kokubo (RWS, 2013)

Low-latency wireless LAN system using polling-based MAC. - Ryosuke Fujiwara; Masayuki Miyazaki; Makoto Katagishi (ISCAS, 2014)

Access point cooperation for collision-free polling between distributed real-time networks. - Haruki Nishimura; Ryosuke Fujiwara; Masayuki Miyazaki; Makoto Katagishi (PIMRC, 2015)

Fast channel switching technique for interference avoidance with 5 GHz dual channel wireless LAN. - Takashi Takeuchi; Yuki Nishikawa; Ryosuke Fujiwara (DICTAP, 2016)

Reliable Wireless Communication Technology of Adaptive Channel Diversity (ACD) Method Based on ISA100.11a Standard. - Yasutaka Serizawa; Ryosuke Fujiwara; Takashi Yano; Masayuki Miyazaki (IEEE Trans. Ind. Electron., 2017)

Model-based anomaly detection in response delay in communication through LTE network. - Kohei Yamamoto; Naoki Wakamiya; Ryo Nakano; Ryosuke Fujiwara (APNOMS, 2021)

A Pilot Valve Endoscopic Image Inspection System Using Unsupervised Learning. - Ryosuke Fujiwara; Masakazu Morimoto (SCIS/ISIS, 2024)