Hiroshi Oguma

46 papers B 17Journal 6Unranked 23
YearRankTypeTitle / Venue / Authors
2024 — conf
Development of Indoor Location Estimation System Using Wi-Fi Access Points and Cloud Service.
ICTC
Yudai Sunagozaka, Takashi Ohkawahara, Rei Hirata, Atsushi Koizumi, Hiroshi Oguma
2024 — conf
FTM Implementation and Ranging Performance Characterization for Indoor Localization.
GCCE
Rei Hirata, Atsushi Koizumi, Hiroshi Oguma, Naotaka Sakaguchi, Takenori Sumi, Yukimasa Nagai
2023 — conf
Evaluation of Satellite Signal Reception Error by Sky View Factor for QZSS Short Message SS-CDMA Communication System.
ICTC
Hiroto Kita, Hiroshi Oguma, Suguru Kameda, Noriharu Suematsu
2022 — conf
Evaluation of Transmission Timing Control Error for QZSS Short Message SS-CDMA Communication System.
ICUFN
Hiroshi Oguma, Rei Kawai, Suguru Kameda, Noriharu Suematsu
2020 — conf
System Implementation of Synchronized SS-CDMA for QZSS Safely Confirmation System.
ICTC
Hiroshi Oguma, Rei Kawai, T. Asai, Suguru Kameda, Mizuki Motoyoshi, Noriharu Suematsu
2019 — conf
Experimental Analysis of Positioning Accuracy of GPS/BeiDou on Elevation Mask.
ICTC
Ren Shinozaki, Hiroshi Oguma, Suguru Kameda, Noriharu Suematsu
2019 J jnl
Experimental Evaluation of Synchronized SS-CDMA Transmission Timing Control Method for QZSS Short Message Communication.
IEICE Trans. Commun.
Suguru Kameda, Kei Ohya, Hiroshi Oguma, Noriharu Suematsu
2019 J jnl
Random Access Control Scheme with Reservation Channel for Capacity Expansion of QZSS Safety Confirmation System.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Suguru Kameda, Kei Ohya, Tomohide Takahashi, Hiroshi Oguma, Noriharu Suematsu
2017 — conf
Construction of transmission timing control system using FPGA for QZSS short message synchronized SS-CDMA communication.
ICTC
Rei Kawai, Hiroshi Oguma, Suguru Kameda, Noriharu Suematsu
2017 — conf
Estimation of energy self-sufficiency rate by EMS simulation using SPICE.
ICTC
Yuta Oshima, Iwao Mizumoto, Hiroshi Oguma, Noboru Ishihara, Kazuya Masu
2017 — conf
Experimental evaluation of transmission timing control method for QZSS short message synchronized SS-CDMA communication.
ICUFN
Kei Ohya, Suguru Kameda, Hiroshi Oguma, Noriharu Suematsu
2017 — conf
Feasibility study of expansion of OpenFlow network using satellite communication to wide area.
ICUFN
Nagahiro Yoshino, Hiroshi Oguma, Suguru Kameda, Noriharu Suematsu
2017 — conf
Influence of multi path on positioning accuracy in a low sky view factor environment.
ICTC
Sho Tatsuguchi, Yuta Oshima, Hiroshi Oguma, Suguru Kameda, Noriharu Suematsu
2016 — conf
Development of the hazard-map utilization support system for flooding with location information.
ICTC
Hiroshi Oguma, Sota Matsuura, Konatsu Suehiro, Yuta Oshima, Sho Tatsuguchi, Atsushi Koizumi
2016 B conf
Efficient random access control scheme with reservation channel for QZSS short message SS-CDMA communication.
WCNC
Kei Ohya, Tomohide Takahashi, Suguru Kameda, Hiroshi Oguma, Akinori Taira, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2016 B conf
Experimental evaluation of timing synchronization accuracy for QZSS short message synchronized SS-CDMA communication.
PIMRC
Kei Ohya, Suguru Kameda, Hiroshi Oguma, Akinori Taira, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2016 — conf
Simulation and evaluation of PV power generation for energy management system using SPICE.
ICTC
Yuta Oshima, Hiroshi Oguma, Noboru Ishihara, Kazuya Masu
2015 — conf
High efficient network selection scheme using location information for heterogeneous wireless system.
WCNC Workshops
Junpei Kuboniwa, Yuji Miyake, Suguru Kameda, Akinori Taira, Hiroshi Oguma, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2015 — conf
Measured evaluation of positioning accuracy on GNSS for heterogeneous wireless system.
ICTC
Hiroshi Oguma, Keita Norishima, Konatsu Suehiro, Suguru Kameda, Noriharu Suematsu
2013 B conf
ASIC implementation of multimode frequency domain equalizer for heterogeneous wireless system.
PIMRC
Yuji Miyake, Kazuhiro Komatsu, Hiroshi Oguma, Noboru Izuka, Suguru Kameda, Makoto Iwata, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2013 B conf
Large-capacity QZSS location and short message system using Frame Slotted ALOHA with Flag Method.
PIMRC
Tomohide Takahashi, Yuji Miyake, Fumihiro Yamagata, Hiroshi Oguma, Suguru Kameda, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2013 J jnl
Measured Downlink Throughput Performance of MBWA System in Urban Area.
IEICE Trans. Commun.
Suguru Kameda, Hiroshi Oguma, Noboru Izuka, Yasuyoshi Asano, Yoshiharu Yamazaki, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2012 B conf
Hybrid single-carrier and multi-carrier system: Evaluation of throughput with inter-cell interference.
PIMRC
Yuji Miyake, Fumihiro Yamagata, Hiroshi Oguma, Noboru Izuka, Suguru Kameda, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2012 J jnl
Proposal of Heterogeneous Wireless Network with Handover in Application Layer: Feasibility Study Based on Field Trial Results.
IEICE Trans. Commun.
Suguru Kameda, Hiroshi Oguma, Noboru Izuka, Fumihiro Yamagata, Yasuyoshi Asano, Yoshiharu Yamazaki, Shoichi Tanifuji, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2011 — conf
Coverage estimation of uplink 64 QAM signal up to 20 MHz bandwidth based on field trial results: coverage issue of broadband uplink signal.
WPMC
Suguru Kameda, Hiroshi Oguma, Noboru Izuka, Yasuyoshi Asano, Yoshiharu Yamazaki, Kazuhiro Komatsu, Shoichi Tanifuji, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2011 — conf
Hybrid single-carrier and multi-carrier system: Widening uplink coverage with optimally selecting SDM or join FDE/antenna diversity.
WPMC
Yuji Miyake, Kazumasa Kobayashi, Kazuhiro Komatsu, Shoichi Tanifuji, Hiroshi Oguma, Noboru Izuka, Suguru Kameda, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2011 — conf
Proposal of heterogeneous wireless communication network with soft handover in application layer: Feasibility study based on field trial results.
CrownCom
Suguru Kameda, Hiroshi Oguma, Noboru Izuka, Fumihiro Yamagata, Yasuyoshi Asano, Yoshiharu Yamazaki, Shoichi Tanifuji, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi
2010 B conf
Coverage Estimation of Uplink 16 QAM Signal up to 20 MHz Bandwidth Based on Field Trial Results of FH-OFDMA System.
WCNC
Hiroshi Oguma, Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi, Noboru Izuka, Yasuyoshi Asano, Yoshiharu Yamazaki
2010 B conf
Hybrid single-carrier and multi-carrier system: Improving uplink throughput with optimally switching modulation.
PIMRC
Shunsuke Tomita, Yuji Miyake, Ikuro Kashiwamura, Kazuhiro Komatsu, Ngoc Hao Tran, Hiroshi Oguma, Noboru Izuka, Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi
2009 B conf
Investigation on single-carrier and multi-carrier hybrid system for uplink.
PIMRC
Ikuro Kashiwamura, Shunsuke Tomita, Kazuhiro Komatsu, Ngoc Hao Tran, Hiroshi Oguma, Noboru Izuka, Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi
2009 B conf
Uplink throughput performance of FH-OFDMA improved by 16 QAM: Effect estimation and validation in MBWA system field trial.
PIMRC
Hiroshi Oguma, Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi, Noboru Izuka, Yasuyoshi Asano, Yoshiharu Yamazaki
2008 J jnl
5GHz Si-CMOS differential power amplifier module with directly connected dipole antenna.
IEICE Electron. Express
Kazuya Shimoyama, Satoshi Yoshida, Tuan Thanh Ta, Keisuke Matsuzaki, Hiroshi Oguma, Suguru Kameda, Hiroyuki Nakase, Tadashi Takagi, Kazuo Tsubouchi
2008 B conf
A SINR estimation for closed-loop link adaptation of 324 Mbit/sec WLAN system.
PIMRC
Yukimasa Nagai, Akinori Fujimura, Masaya Akihara, Hiroyuki Nakase, Suguru Kameda, Hiroshi Oguma, Kazuo Tsubouchi
2008 — conf
First-Ever Report on MBWA System Field Trial: Interference Issue in Sectored Cell Layout.
VTC Fall
Noboru Izuka, Yasuyoshi Asano, Yoshiharu Yamazaki, Hiroshi Oguma, Suguru Kameda, Tohoku Takagi, Kazuo Tsubouchi
2008 B conf
Improvement of bit error rate using channel interleaving for channel binding WLAN prototype.
PIMRC
Hiroyuki Nakase, Hiroshi Oguma, Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi, Mari Ochiai, Yukimasa Nagai, Akinori Fujimura, Yoji Isota
2008 — conf
Measured downlink throughput performance of MBWA system in urban area.
ISWCS
Hiroshi Oguma, Suguru Kameda, Noboru Izuka, Yasuyoshi Asano, Yoshiharu Yamazaki, Tadashi Takagi, Kazuo Tsubouchi
2007 B conf
A Closed-Loop Link Adaptation Scheme for 324Mbit/sec WLAN System.
PIMRC
Yukimasa Nagai, Akinori Fujimura, Masaya Akihara, Yoshihiko Shirokura, Fumio Ishizu, Hiroyuki Nakase, Suguru Kameda, Hiroshi Oguma, Kazuo Tsubouchi
2007 — conf
Demonstration of HDTV Transmission Using 324Mbps WLAN Equipment.
CCNC
Yukimasa Nagai, Akinori Fujimura, Yoshihiko Shirokura, Fumio Ishizu, Hiroyuki Nakase, Suguru Kameda, Hiroshi Oguma, Kazuo Tsubouchi
2007 B conf
Evaluation of High-Speed and Large-Capacity RFID Inventory Method using 1-Bit Flag.
PIMRC
Suguru Kameda, Satoru Fukuyo, Atsuyoshi Yamaguchi, Hiroshi Oguma, Hiroyuki Nakase, Tadashi Takagi, Kazuo Tsubouchi
2007 B conf
The 60GHz Band Multi-Carrier Wireless System for 2Gbps Transmission with Constant Envelope Modulation.
PIMRC
Shoichi Oshima, Goro Mori, Hiroshi Oguma, Suguru Kameda, Hiroyuki Nakase, Tadashi Takagi, Kazuo Tsubouchi
2006 J jnl
324Mbps WLAN Equipment with MAC Frame Aggregation for High MAC-SAP Throughput.
J. Commun.
Yukimasa Nagai, Akinori Fujimura, Yoshihiko Shirokura, Yoji Isota, Fumio Ishizu, Hiroyuki Nakase, Suguru Kameda, Hiroshi Oguma, Kazuo Tsubouchi
2006 B conf
324Mbps WLAN equipment with MAC frame aggregation.
PIMRC
Yukimasa Nagai, Akinori Fujimura, Yoshihiko Shirokura, Yoji Isota, Fumio Ishizu, Hiroyuki Nakase, Suguru Kameda, Hiroshi Oguma, Kazuo Tsubouchi
2006 — conf
High-Speed and Large-Capacity RFID Inventory Method Using 1-Bit Flag.
ISWCS
Suguru Kameda, Atsuyoshi Yamaguchi, Satoru Fukuyo, Hiroshi Oguma, Hiroyuki Nakase, Tadashi Takagi, Kazuo Tsubouchi
2006 B conf
Implementation of 324Mbit/sec WLAN equipment.
PIMRC
Hiroshi Oguma, Hiroyuki Nakase, Suguru Kameda, Kazuo Tsubouchi, Mari Ochiai, Yukimasa Nagai, Akinori Fujimura, Yoji Isota, Fumio Ishizu
2006 — conf
Implementation of 324Mbps WLAN equipment with MAC frame aggregation for high MAC-SAP throughput.
CCNC
Yukimasa Nagai, Yoshihiko Shirokura, Hiroyuki Nakase, Hiroshi Oguma, Yoji Isota, Fumio Ishizu, Kazuo Tsubouchi
2003 B conf
Packet SS-CDMA modem with carrier frequency offset compensation.
PIMRC
Atsuyoshi Yamaguchi, J. Takagi, Hiroshi Oguma, Seong-Kweon Kim, Suguru Kameda, Hiroyuki Nakase, Yoji Isota, Kazuo Tsubouchi