Packet SS-CDMA modem with carrier frequency offset compensation. - Atsuyoshi Yamaguchi; J. Takagi; Hiroshi Oguma; Seong-Kweon Kim; Suguru Kameda; Hiroyuki Nakase; Yoji Isota; Kazuo Tsubouchi (PIMRC, 2003)

Implementation of 324Mbps WLAN equipment with MAC frame aggregation for high MAC-SAP throughput. - Yukimasa Nagai; Yoshihiko Shirokura; Hiroyuki Nakase; Hiroshi Oguma; Yoji Isota; Fumio Ishizu; Kazuo Tsubouchi (CCNC, 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 (ISWCS, 2006)

324Mbps WLAN equipment with MAC frame aggregation. - Yukimasa Nagai; Akinori Fujimura; Yoshihiko Shirokura; Yoji Isota; Fumio Ishizu; Hiroyuki Nakase; Suguru Kameda; Hiroshi Oguma; Kazuo Tsubouchi (PIMRC, 2006)

Implementation of 324Mbit/sec WLAN equipment. - Hiroshi Oguma; Hiroyuki Nakase; Suguru Kameda; Kazuo Tsubouchi; Mari Ochiai; Yukimasa Nagai; Akinori Fujimura; Yoji Isota; Fumio Ishizu (PIMRC, 2006)

324Mbps WLAN Equipment with MAC Frame Aggregation for High MAC-SAP Throughput. - Yukimasa Nagai; Akinori Fujimura; Yoshihiko Shirokura; Yoji Isota; Fumio Ishizu; Hiroyuki Nakase; Suguru Kameda; Hiroshi Oguma; Kazuo Tsubouchi (J. Commun., 2006)

Demonstration of HDTV Transmission Using 324Mbps WLAN Equipment. - Yukimasa Nagai; Akinori Fujimura; Yoshihiko Shirokura; Fumio Ishizu; Hiroyuki Nakase; Suguru Kameda; Hiroshi Oguma; Kazuo Tsubouchi (CCNC, 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 (PIMRC, 2007)

A Closed-Loop Link Adaptation Scheme for 324Mbit/sec WLAN System. - Yukimasa Nagai; Akinori Fujimura; Masaya Akihara; Yoshihiko Shirokura; Fumio Ishizu; Hiroyuki Nakase; Suguru Kameda; Hiroshi Oguma; 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)

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)

A SINR estimation for closed-loop link adaptation of 324 Mbit/sec WLAN system. - Yukimasa Nagai; Akinori Fujimura; Masaya Akihara; Hiroyuki Nakase; Suguru Kameda; Hiroshi Oguma; Kazuo Tsubouchi (PIMRC, 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)

First-Ever Report on MBWA System Field Trial: Interference Issue in Sectored Cell Layout. - Noboru Izuka; Yasuyoshi Asano; Yoshiharu Yamazaki; Hiroshi Oguma; Suguru Kameda; Tohoku Takagi; Kazuo Tsubouchi (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)

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)

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)

Measured evaluation of positioning accuracy on GNSS for heterogeneous wireless system. - Hiroshi Oguma; Keita Norishima; Konatsu Suehiro; Suguru Kameda; Noriharu Suematsu (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)

Development of the hazard-map utilization support system for flooding with location information. - Hiroshi Oguma; Sota Matsuura; Konatsu Suehiro; Yuta Oshima; Sho Tatsuguchi; Atsushi Koizumi (ICTC, 2016)

Simulation and evaluation of PV power generation for energy management system using SPICE. - Yuta Oshima; Hiroshi Oguma; Noboru Ishihara; Kazuya Masu (ICTC, 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 (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)

Construction of transmission timing control system using FPGA for QZSS short message synchronized SS-CDMA communication. - Rei Kawai; Hiroshi Oguma; Suguru Kameda; Noriharu Suematsu (ICTC, 2017)

Estimation of energy self-sufficiency rate by EMS simulation using SPICE. - Yuta Oshima; Iwao Mizumoto; Hiroshi Oguma; Noboru Ishihara; Kazuya Masu (ICTC, 2017)

Influence of multi path on positioning accuracy in a low sky view factor environment. - Sho Tatsuguchi; Yuta Oshima; Hiroshi Oguma; Suguru Kameda; Noriharu Suematsu (ICTC, 2017)

Experimental evaluation of transmission timing control method for QZSS short message synchronized SS-CDMA communication. - Kei Ohya; Suguru Kameda; Hiroshi Oguma; Noriharu Suematsu (ICUFN, 2017)

Feasibility study of expansion of OpenFlow network using satellite communication to wide area. - Nagahiro Yoshino; Hiroshi Oguma; Suguru Kameda; Noriharu Suematsu (ICUFN, 2017)

Experimental Analysis of Positioning Accuracy of GPS/BeiDou on Elevation Mask. - Ren Shinozaki; Hiroshi Oguma; Suguru Kameda; Noriharu Suematsu (ICTC, 2019)

Experimental Evaluation of Synchronized SS-CDMA Transmission Timing Control Method for QZSS Short Message Communication. - Suguru Kameda; Kei Ohya; Hiroshi Oguma; Noriharu Suematsu (IEICE Trans. Commun., 2019)

Random Access Control Scheme with Reservation Channel for Capacity Expansion of QZSS Safety Confirmation System. - Suguru Kameda; Kei Ohya; Tomohide Takahashi; Hiroshi Oguma; Noriharu Suematsu (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019)

System Implementation of Synchronized SS-CDMA for QZSS Safely Confirmation System. - Hiroshi Oguma; Rei Kawai; T. Asai; Suguru Kameda; Mizuki Motoyoshi; Noriharu Suematsu (ICTC, 2020)

Evaluation of Transmission Timing Control Error for QZSS Short Message SS-CDMA Communication System. - Hiroshi Oguma; Rei Kawai; Suguru Kameda; Noriharu Suematsu (ICUFN, 2022)

Evaluation of Satellite Signal Reception Error by Sky View Factor for QZSS Short Message SS-CDMA Communication System. - Hiroto Kita; Hiroshi Oguma; Suguru Kameda; Noriharu Suematsu (ICTC, 2023)

FTM Implementation and Ranging Performance Characterization for Indoor Localization. - Rei Hirata; Atsushi Koizumi; Hiroshi Oguma; Naotaka Sakaguchi; Takenori Sumi; Yukimasa Nagai (GCCE, 2024)

Development of Indoor Location Estimation System Using Wi-Fi Access Points and Cloud Service. - Yudai Sunagozaka; Takashi Ohkawahara; Rei Hirata; Atsushi Koizumi; Hiroshi Oguma (ICTC, 2024)