Masao Nakagawa

145 papers A 1B 43C 3Misc 9Journal 61Unranked 28
YearRankTypeTitle / Venue / Authors
2025 J jnl
AI-Driven Framework for Optimizing and Predicting Hole Geometry in Multilayer Composite Substrates for Laser Drilling.
Int. J. Autom. Technol.
Soma Nowatari, Takuto Fujimoto, Masao Nakagawa, Toshiki Hirogaki, Eiichi Aoyama
2025 J jnl
Development of Shape-Mimetics Wireless Monitoring System by 3D Printer and its Application to Grasp-Less Handling Based on Ball Rolling Motion with a Dual-Arm Robot and Egg Washing Inspection Process.
Int. J. Autom. Technol.
Hiroaki Hanai, Yuma Mita, Yuiga Wada, Masao Nakagawa, Toshiki Hirogaki, Eiichi Aoyama
2025 J jnl
Drilling of Carbon Fiber-Reinforced Plastic with Double-Angle Drill Using Industrial Robots.
Int. J. Autom. Technol.
Daiki Kato, Masataka Sekioka, Tomohiro Uchino, Masao Nakagawa, Toshiki Hirogaki
2025 J jnl
Hole-Quality Inspection Using Machine Learning Based on Temperature Images Obtained Using Two-Color High-Speed Video for Cu Direct Laser Processes of a Printed Wiring Board.
Int. J. Autom. Technol.
Takuto Fujimoto, Soma Nowatari, Masao Nakagawa, Toshiki Hirogaki, Eiichi Aoyama
2025 J jnl
Improvement of Accuracy of Position and Orientation Estimation of AMR Using Camera Tracking and SLAM.
J. Robotics Mechatronics
Yasuaki Omi, Hibiki Sasa, Daiki Kato, Eiichi Aoyama, Toshiki Hirogaki, Masao Nakagawa
2021 J jnl
Reversing Behavior of Planetary Gear Train Influenced by Support Stiffness of Driving Shaft.
Int. J. Autom. Technol.
Seiya Hamada, Kazutoshi Otokodani, Masao Nakagawa, Toshiki Hirogaki, Eiichi Aoyama
2017 J jnl
Foreword.
IEICE Trans. Commun.
Masao Nakagawa
2012 J jnl
PAPR Reduction of TDD-CDMA Using Joint Transmission Technique.
IEICE Trans. Commun.
Norharyati Binti Harum, Tomoaki Ohtsuki, Masao Nakagawa
2011 J jnl
An Autonomous Selective Cooperative ARQ Protocol for Hybrid Mobile Wireless Sensor Networks.
J. Commun.
Nandar Lynn, Osamu Takyu, Koichi Adachi, Masao Nakagawa, Tomoaki Ohtsuki
2010 J jnl
6-Axis Sensor Assisted Low Complexity High Accuracy-Visible Light Communication Based Indoor Positioning System.
IEICE Trans. Commun.
Chinnapat Sertthin, Tomoaki Ohtsuki, Masao Nakagawa
2010 J jnl
Frequency Rotation for Suppressing Multipath Interference and Achieving Large Frequency Diversity in Uplink IFDMA.
IEICE Trans. Commun.
Osamu Takyu, Yohtaro Umeda, Masao Nakagawa
2010 — conf
Impact of Frequency Diversity and Multi-User Diversity in IFDMA.
VTC Spring
Yuichi Kazama, Akira Yamasaki, Koichi Adachi, Masao Nakagawa
2010 B conf
Iterative Interference Cancellation for Multi-Code PR/MC-CDMA.
WCNC
Koichi Adachi, Masao Nakagawa
2010 J jnl
Multi-Band Received Signal Strength Fingerprinting Based Indoor Location System.
IEICE Trans. Commun.
Chinnapat Sertthin, Takeo Fujii, Tomoaki Ohtsuki, Masao Nakagawa
2010 J jnl
On the Construction of Orthogonal Spreading Code Groups for MC-CDMA with FDE in a Frequency Selective Channel.
IEICE Trans. Commun.
Koichi Adachi, Masao Nakagawa
2010 J jnl
Phase Rotation for Constructing Uniform Frequency Spectrum in IFDMA Communication.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Takeo Yamasaki, Osamu Takyu, Koichi Adachi, Yohtaro Umeda, Masao Nakagawa
2009 J jnl
Adaptive Modulation and Code Channel Elimination for Vector Coding System.
IEICE Trans. Commun.
Daisuke Takeda, Masao Nakagawa
2009 J jnl
Adaptive equalization system for visible light wireless communication utilizing multiple white LED lighting equipment.
IEEE Trans. Wirel. Commun.
Toshihiko Komine, Junhwan Lee, Shinichiro Haruyama, Masao Nakagawa
2009 J jnl
Channel Capacity of MC-CDMA and Impact of Residual ICI.
IEICE Trans. Commun.
Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2009 — conf
Determination of Inspection Threshold Using Perceptive Sensitivities of Experienced Panel.
HCI (8)
Masao Nakagawa, Hidetoshi Nakayasu, Tetsuya Miyoshi
2009 J jnl
Experimental Evaluation of Time Diversity Effect in Hybrid ARQ Considering Space and Path Diversity for Downlink OFDM-Based Broadband Radio Access.
IEICE Trans. Commun.
Nobuhiko Miki, Hiroyuki Atarashi, Kenichi Higuchi, Mamoru Sawahashi, Masao Nakagawa
2009 B conf
Multiband received signal strength fingerprint based location system.
PIMRC
Chinnapat Sertthin, Takeo Fujii, Masao Nakagawa
2009 B conf
On the construction of orthogonal spreading code groups for MC-CDMA with FDE in a frequency selective channel.
WCNC
Koichi Adachi, Masao Nakagawa
2009 J jnl
Optimum Adaptive Modulation and Channel Coding Scheme for Frequency Domain Channel-Dependent Scheduling in OFDM Based Evolved UTRA Downlink.
IEICE Trans. Commun.
Nobuhiko Miki, Yoshihisa Kishiyama, Kenichi Higuchi, Mamoru Sawahashi, Masao Nakagawa
2009 B conf
Performance of turbo equalized double window cancellation and combining in large delay spread channels.
PIMRC
Junhwan Lee, Tomoaki Ohtsuki, Masao Nakagawa
2009 — conf
Phase Rotation/MC-CDMA for Uplink Transmission.
MCSS
Koichi Adachi, Masao Nakagawa
2009 J jnl
Turbo Equalized Double Window Cancellation and Combining Robust to Large Delay Spread Channel.
IEICE Trans. Commun.
Junhwan Lee, Tomoaki Ohtsuki, Masao Nakagawa
2009 — conf
Virtual MIMO Space Division Multiplexing for MC-CDMA.
VTC Fall
Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2008 B conf
Bit-Wise Error Detection Based Iterative Signal Detection for OFDM MIMO Multiplexing.
WCNC
Koichi Adachi, Masao Nakagawa
2008 — conf
Cellular MIMO Channel Capacities of MC-CDMA and OFDM.
VTC Spring
Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2008 — conf
Frequency Sharing Secondary System with Carrier Sense Assisted by Cellular System.
CrownCom
Anwida Prompijit, Chinnapat Sertthin, Masao Nakagawa, Takeo Fujii
2008 J jnl
Frequency Spectrum Rotation in Interleaved Frequency Division Multiplexing.
IEICE Trans. Commun.
Osamu Takyu, Masao Nakagawa
2008 B conf
Frequency rotation for suppressing path interference and achieving large frequency diversity in uplink IFDMA.
PIMRC
Osamu Takyu, Yohtaro Umeda, Masao Nakagawa
2008 J jnl
IP Packet Loss Prevention Scheme with Bicast and Forwarding for Handover in Mobile Communications.
IEICE Trans. Commun.
Masahiko Saito, Akihito Morimoto, Masao Nakagawa
2008 J jnl
On Cellular MIMO Channel Capacity.
IEICE Trans. Commun.
Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2007 J jnl
A Short Delay Relay Scheme Using Shared Frequency Repeater for UWB Impulse Radio.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Chihong Cho, Honggang Zhang, Masao Nakagawa
2007 J jnl
Double Window Cancellation and Combining for OFDM in Time-Invariant Large Delay Spread Channel.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Junhwan Lee, Yoshihisa Kishiyama, Tomoaki Ohtsuki, Masao Nakagawa
2007 B conf
Frequency Spectrum Rotation in Interleaved Frequency Division Multiplexing.
GLOBECOM
Osamu Takyu, Masao Nakagawa
2007 B conf
IFDM for Downlink Wireless Access Scheme and Performance Comparison to MC-CDM.
PIMRC
Osamu Takyu, Masao Nakagawa
2007 J jnl
Iterative Modified QRD-M Based on CRC Codes for OFDM MIMO Multiplexing.
IEICE Trans. Commun.
Koichi Adachi, Masao Nakagawa
2007 — conf
Measurement and Analysis of Performance of Human Perception for Information Communication Technology.
HCI (8)
Hidetoshi Nakayasu, Masao Nakagawa, Hidehiko Hayashi
2007 — conf
On Cellular MIMO Spectrum Efficiency.
VTC Fall
Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2007 J jnl
Relay Method of Sending Soft Decision Symbol Based on the Result of Error Detecting Code in Cooperative Communication.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yuki Fukuyama, Osamu Takyu, Koichi Adachi, Masao Nakagawa
2007 J jnl
Theoretical Analysis of Decision Directed Block Iterative Channel Estimation for OFDM Mobile Radio.
IEICE Trans. Commun.
Koichi Adachi, Masao Nakagawa
2006 J jnl
A Sign Selection Method of Orthogonal Variable Spreading Factor Code for Peak Power Reduction in Multi-Rate OFCDM Systems.
IEICE Trans. Commun.
Osamu Takyu, Tomoaki Ohtsuki, Masao Nakagawa
2006 J jnl
Companding System Based on Time Clustering for Reducing Peak Power of OFDM Symbol in Wireless Communications.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Osamu Takyu, Tomoaki Ohtsuki, Masao Nakagawa
2006 J jnl
Evaluation of Asymmetric TDD Systems Employing AMC and HARQ by Considering MCS Selection Errors.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Nandar Lynn, Osamu Takyu, Riaz Esmailzadeh, Masao Nakagawa
2006 J jnl
Experimental Investigation of Modulation Method for Visible-Light Communications.
IEICE Trans. Commun.
Hidemitsu Sugiyama, Shinichiro Haruyama, Masao Nakagawa
2006 B conf
IP Packet Loss Compensation Scheme with Bicast and Forwarding for Handover in Mobile Communications.
PIMRC
Masahiko Saito, Akihito Morimoto, Osamu Takyu, Masao Nakagawa
2006 Misc conf
Inter-vehicle communication and ranging method using LED rear lights.
Communication Systems and Networks
Tsubasa Saito, Shinichiro Haruyama, Masao Nakagawa
2006 — conf
Iterative Modified QRM-MLD Based on CRC Check for OFDM MIMO Multiplexing.
VTC Spring
Koichi Adachi, Masao Nakagawa
2006 J jnl
Iterative QRM-MLD with Pilot-Assisted Decision Directed Channel Estimation for OFDM MIMO Multiplexing.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Koichi Adachi, Riaz Esmailzadeh, Masao Nakagawa
2006 — conf
LDPC Coded Iterative Signal Detection Based on QRD-M with CRC Check.
VTC Fall
Koichi Adachi, Masao Nakagawa
2006 J jnl
PSWF-Based Direct-Sequence UWB Transmission Using Orthogonal Ternary Code Sets.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Chihong Cho, Honggang Zhang, Masao Nakagawa
2006 — conf
PSWF-based direct-sequence UWB transmission using orthogonal ternary code sets.
CCNC
Chihong Cho, Masao Nakagawa, Honggang Zhang, Zheng Zhou
2006 Misc conf
Relay method of sending soft decided symbol in cooperative communication.
Communication Systems and Networks
Yuki Fukuyama, Osamu Takyu, Koichi Adachi, Masao Nakagawa
2006 Misc conf
Same-entity interference-aware retransmission system for TD-CDMA with random slot allocation (RSA).
Communication Systems and Networks
Ichiro Tamaki, Riaz Esmailzadeh, Masao Nakagawa
2006 — conf
Subcarrier modulation for visible-light communication using imaging sensor.
Communications and Computer Networks
Dai Yamanaka, Shinichiro Haruyama, Masao Nakagawa
2006 J jnl
Two-Stage Random-Access Using Two-Hop Relay for Multi-Hop Systems.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yoichiro Mizuno, Ryo Hasegawa, Riaz Esmailzadeh, Masao Nakagawa
2006 J jnl
Visible Light Communication with LED Traffic Lights Using 2-Dimensional Image Sensor.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Haswani Binti Che Wook, Shinichiro Haruyama, Masao Nakagawa
2006 — conf
Visible light communication with LED-based traffic lights using 2-dimensional image sensor.
CCNC
Haswani Binti Che Wook, Toshihiko Komine, Shinichiro Haruyama, Masao Nakagawa
2005 J jnl
A Study of Shadowing on Indoor Visible-Light Wireless Communication Utilizing Plural White LED Lightings.
Wirel. Pers. Commun.
Toshihiko Komine, Shinichiro Haruyama, Masao Nakagawa
2005 J jnl
Analysis of Performance Degradation due to Channel Estimation Error in Pre-Rake TDD/CDMA.
IEICE Trans. Commun.
Norharyati Binti Harum, Yuh Tamura, Sigit P. W. Jarot, Riaz Esmailzadeh, Masao Nakagawa
2005 — conf
Analysis on Performance of Bilateral Robot System Using Wireless Communication.
WHC
Takeshi Marugame, Makoto Ohnishi, Masao Nakagawa
2005 J jnl
Criterion for Reducing Error Rate Degradation by Nonlinear Amplifier for Multicarrier Transmission.
IEICE Trans. Commun.
Osamu Takyu, Tomoaki Ohtsuki, Masao Nakagawa
2005 B conf
Joint Transmission for Space Time Block Coded TD-SCDMA.
PIMRC
Norharyati Binti Harum, Riaz Esmailzadeh, Masao Nakagawa
2005 B conf
Pre-Rake System Applied with Frequency Domain Equalization In Multi-Code TDD-CDMA.
PIMRC
Junhwan Lee, Masao Nakagawa
2005 B conf
Two-stage random-access for multihop systems.
PIMRC
Yoichiro Mizuno, Ryo Hasegawa, Riaz Esmailzadeh, Masao Nakagawa
2004 B conf
A UWB repeater with a short relaying-delay for range extension.
WCNC
Chihong Cho, Honggang Zhang, Masao Nakagawa
2004 J jnl
A novel soft handoff technique using STTD for MC-CDMA in a frequency selective fading channel.
Eur. Trans. Telecommun.
Kyesan Lee, Masao Nakagawa
2004 — conf
A study of shadowing on indoor visible-light wireless communication utilizing plural white LED lightings.
ISWCS
Toshihiko Komine, Masao Nakagawa
2004 B conf
Companding system with time clustering.
PIMRC
Osamu Takyu, Tomoaki Ohtsuki, Masao Nakagawa
2004 J jnl
Fundamental analysis for visible-light communication system using LED lights.
IEEE Trans. Consumer Electron.
Toshihiko Komine, Masao Nakagawa
2004 C conf
Kinematic calibration on a parallel kinematic machine tool of the Stewart platform by circular tests.
ACC
Soichi Ibaraki, Takeshi Yokawa, Yoshiaki Kakino, Masao Nakagawa, Tetsuya Matsushita
2004 B conf
M-ary pulse shape modulation for PSWF-based UWB systems in multipath fading environment.
GLOBECOM
Kazuto Usuda, Honggang Zhang, Masao Nakagawa
2004 C conf
Performance evaluation of visible-light wireless communication system using white LED lightings.
ISCC
Toshihiko Komine, Masao Nakagawa
2004 B conf
Pre-Rake performance for pulse based UWB system in a standardized UWB short-range channel.
WCNC
Kazuto Usuda, Honggang Zhang, Masao Nakagawa
2004 — conf
Transmit Selection Diversity for TDD-CDMA with Asymmetric Modulation in Duplex Channel.
ICT
Incheol Jeong, Masao Nakagawa
2003 B conf
Analysis of performance degradation due to channel estimation error in pre-Rake TDD/CDMA.
PIMRC
Norharyati Binti Harum, Yuh Tamura, Sigit P. W. Jarot, Riaz Esmailzadeh, Masao Nakagawa
2003 A conf
Evaluation on effect of errors on haptic information in wireless communication system.
IROS
Takeshi Marugame, Atsushi Kamikura, Makoto Ohnishi, Masao Nakagawa
2003 — conf
Frequency offset compensation with MMSE-MUD for multi-carrier CDMA in quasi-synchronous uplink.
ICC
Osamu Takyu, Tomoaki Ohtsuki, Masao Nakagawa
2003 J jnl
Integrated system of white LED visible-light communication and power-line communication.
IEEE Trans. Consumer Electron.
Toshihiko Komine, Masao Nakagawa
2003 J jnl
TDD-CDMA for the 4th generation of wireless communications.
IEEE Wirel. Commun.
Riaz Esmailzadeh, Masao Nakagawa, Alan Jones
2003 J jnl
Ubiquitous homelinks based on IEEE 1394 and ultra wideband solutions.
IEEE Commun. Mag.
Masao Nakagawa, Honggang Zhang, Hideaki Sato
2002 J jnl
Adaptive Clipping Level Control for OFDM Peak Power Reduction Using Clipping and Filtering.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Takeo Fujii, Masao Nakagawa
2002 B conf
Clustered assign code selecting peak power reduction for MC-CDMA.
PIMRC
Takeo Fujii, Masao Nakagawa
2002 B conf
Code selecting peak power reduction for MC-CDMA.
WCNC
Takeo Fujii, Masao Nakagawa
2002 — conf
Communication using reflective wave on HAPS.
MWCN
S. Horikawa, Masao Nakagawa, Takeo Fujii
2002 B conf
Dynamic intelligent hub station for Wireless 1394.
PIMRC
Hisanori Tanada, Masao Nakagawa, Tomoyuki Udagawa, Takemi Arita, Honggang Zhang
2002 B conf
Indoor visible communication utilizing plural white LEDs as lighting.
PIMRC
Yuichi Tanaka, Toshihiko Komine, Shinichiro Haruyama, Masao Nakagawa
2002 B conf
Integrated system of white LED visible-light communication and power-line communication.
PIMRC
Toshihiko Komine, Masao Nakagawa
2002 — conf
Pre-Rake schemes for TDD multi-carrier/DS-CDMA.
MWCN
Sigit P. W. Jarot, Masao Nakagawa
2002 — conf
Space time transmit site diversity for OFDM multi base station system.
MWCN
Manabu Inoue, Masao Nakagawa, Takeo Fujii
2002 — conf
Subcarrier selection with variable spreading factor for reverse link of TDD multi-carrier/DS-CDMA system.
MWCN
Yuh Tamura, Sigit P. W. Jarot, Masao Nakagawa
2001 — conf
Application of road-to-vehicle communication and ranging system using spread spectrum technique to ADS.
VTC Fall
Takashi Kondou, Kiyoshi Mizui, Masao Nakagawa
2001 J jnl
Basic study on traffic information system using LED traffic lights.
IEEE Trans. Intell. Transp. Syst.
Masako Akanegawa, Yuichi Tanaka, Masao Nakagawa
2001 — conf
Multiple antenna transmitter diversity by using adaptive carrier selection for OFDM DS-CDMA in a variable selective fading channel.
VTC Fall
Kyesan Lee, Masao Nakagawa
2001 — conf
Transmit multi-antenna diversity for TDD MC-CDMA.
VTC Fall
Incheol Jeong, Dong Seung Kwon, Masao Nakagawa
2000 B conf
Capacity analysis for a hybrid indoor mobile communication system using cellular and ad-hoc modes.
PIMRC
Tomoko Adachi, Masao Nakagawa
2000 B conf
Distributed antenna system using RAKE combining diversity for a multi-carrier DS/CDMA in a frequency selective fading channel.
PIMRC
Kyesan Lee, Masao Nakagawa
2000 J jnl
Each Carrier Transmission Power Control with Antenna Carrier Diversity for OFDMDS-CDMA System.
Eur. Trans. Telecommun.
Sigit Puspito Wigati Jarot, Masao Nakagawa
2000 B conf
Indoor multi-base stations system with simultaneous transmission using OFDM adaptive array antenna.
PIMRC
Takeo Fujii, Masao Nakagawa
2000 J jnl
Intelligent transportation systems: the role of third-generation mobile radio networks.
IEEE Commun. Mag.
Oreste Andrisano, Roberto Verdone, Masao Nakagawa
2000 B conf
Optimal access point placement in simultaneous broadcast system using OFDM for indoor wireless LAN.
PIMRC
Mari Kobayashi, Shinichiro Haruyama, Ryuji Kohno, Masao Nakagawa
2000 — conf
Overlapped-Spot Diversity Using Orthogonal Frequency Division Multiplexing for 60 GHz Indoor Wireless Local Area Network.
ICC (3)
Mari Kobayashi, Masao Nakagawa, Takemi Arita, Tomoyuki Udagawa, Akihiro Kajiwara
2000 B conf
Spatially divided channel scheme using sectored antennas for CSMA/CA "directional CSMA/CA".
PIMRC
Kou Kobayashi, Masao Nakagawa
2000 B conf
Transmission antenna diversity for TDD-CDMA with asymmetric modulation in duplex channel.
PIMRC
Incheol Jeong, Masao Nakagawa
2000 B conf
Wireless optical transmissions with white colored LED for wireless home links.
PIMRC
Yuichi Tanaka, Shinichiro Haruyama, Masao Nakagawa
1999 J jnl
Preface.
Wirel. Pers. Commun.
Luís M. Correia, Masao Nakagawa
1999 C conf
Transmission Power Control Techniques for the Reverse Link of OFDM-DS-CDMA System.
ISCC
Sigit Puspito, Wigati Jarot, Masao Nakagawa
1998 B conf
Battery consumption and handoff examination of a cellular ad-hoc united communication system for operational mobile robots.
PIMRC
Tomoko Adachi, Masao Nakagawa
1998 J jnl
PLL performance of DS-CDMA systems in the presence of phase noise, multiuser interference, and additive Gaussian noise.
IEEE Trans. Commun.
Wei Huang, Ivan Andonovic, Masao Nakagawa
1998 B conf
Power control and sector antennas for improved DS/SS inter-vehicle communication.
PIMRC
Lachlan B. Michael, Masao Nakagawa
1998 B conf
System performance of DS/SS inter-vehicle communication and ranging system under Rician fading channel.
PIMRC
Nobuyoshi Fujimoto, Masao Nakagawa
1997 B conf
A forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system.
PIMRC
Hideyuki Matsutani, Yukitoshi Sanada, Masao Nakagawa
1997 B conf
Adaptive channel access protocol for asynchronous inter-vehicle communication network using spread spectrum.
PIMRC
Mina Maeda, Masao Nakagawa
1997 B conf
An initial sequence acquisition technique for multicarrier time division duplex CDMA systems on a Rayleigh fading channel.
PIMRC
Yukitoshi Sanada, Masao Nakagawa
1997 J jnl
International cooperative research and development of wireless personal communications in Asian-Pacific countries.
IEEE Wirel. Commun.
Ryuji Kohno, Masao Nakagawa
1997 B conf
Multicarrier assignment with random pulse for multicarrier high speed decentralized wireless LAN.
PIMRC
Takeo Fujii, Hiroyuki Atarashi, Masao Nakagawa
1997 J jnl
New concepts and technologies for achieving highly reliable and high-capacity multimedia wireless communications systems.
IEEE Commun. Mag.
Norihiko Morinaga, Masao Nakagawa, Ryuji Kohno
1997 B conf
Optical multi-wavelength PPM for high data rate transmission on indoor channels.
PIMRC
Yuichi Tanaka, Masao Nakagawa
1997 — conf
Parallel Coded Optical Multicarrier Frequency Division Multiplexing: A Potential Step Towards High Speed, High Capacity & High Reliability in Optical Transmission Systems.
ICC (2)
Raziq Pervez, Masao Nakagawa
1997 J jnl
Time-division duplex CDMA communications.
IEEE Wirel. Commun.
Riaz Esmailzadeh, Masao Nakagawa, Essam A. Sourour
1996 J jnl
A Multiuser Interference Cancellation Technique Utilizing Convolutional Codes and Orthogonal Multicarrier Modulation for Wireless Indoor Communications.
IEEE J. Sel. Areas Commun.
Yukitoshi Sanada, Masao Nakagawa
1996 J jnl
Performance of orthogonal multicarrier CDMA in a multipath fading channel.
IEEE Trans. Commun.
Essam A. Sourour, Masao Nakagawa
1995 B conf
Position Paper on Broadband Wireless.
PIMRC
Masao Nakagawa
1995 B conf
Pre-RAKE diversity combining in time division duplex CDMA mobile communications.
PIMRC
Riaz Esmailzadeh, Essam A. Sourour, Masao Nakagawa
1994 B conf
A modified multi-stage co-channel interference cancellation in asynchronous CDMA systems.
PIMRC
Essam A. Sourour, Masao Nakagawa
1994 B conf
Coherent detector selection diversity system in fading channels.
PIMRC
Shinji Ono, Masao Nakagawa, Masafumi Hagiwara
1994 J jnl
Guest editorial. Code division multiple access networks. I.
IEEE J. Sel. Areas Commun.
Ahmed K. Elhakeem, Donald L. Schiling, Paul W. Baier, Masao Nakagawa, A. Bush
1994 J jnl
Microcellular CDMA system with a linear multiuser interference canceler.
IEEE J. Sel. Areas Commun.
Akihiro Kajiwara, Masao Nakagawa
1994 J jnl
Path diversity for FFH/PSK spread-spectrum communication systems.
IEEE J. Sel. Areas Commun.
Yasushi Murata, Riaz Esmailzadeh, Keiji Takakusaki, Essam A. Sourour, Masao Nakagawa
1994 B conf
Time division duplex transmission of direct sequence spread spectrum signals in multipath channels.
VTC
Riaz Esmailzadeh, Masao Nakagawa
1994 B conf
Two stage co-channel interference cancellation in orthogonal multicarrier CDMA in a frequency selective fading channel.
PIMRC
Essam A. Sourour, Masao Nakagawa
1993 — conf
Kohonen feature maps as a supervised learning machine.
ICNN
Hiroyuki Ichiki, Masafumi Hagiwara, Masao Nakagawa
1990 Misc conf
Phase synchronizer for fading channels with the modified method of least squares.
ICASSP
Hiroyasu Sano, Masafumi Hagiwara, Masao Nakagawa
1990 J jnl
Variable bit rate modulo-pcm using adaptive predictor.
Syst. Comput. Jpn.
Kiyoshi Mizui, Masafumi Hagiwara, Masao Nakagawa
1989 Misc conf
A new timing extraction method and data interpolation for block demodulation.
ICASSP
Yutaka Miyake, Masafumi Hagiwara, Masao Nakagawa
1988 J jnl
An improved method of embedding data into pictures by modulo masking.
IEEE Trans. Commun.
Kentaro Hara, Tadashi Shimomura, Takaaki Hasegawa, Masao Nakagawa
1988 Misc conf
New DSP type phase synchronizer with the method of least squares.
ICASSP
Masafumi Hagiwara, Masao Nakagawa
1987 Misc conf
Modulo-PCM with multi-quantizer.
ICASSP
Kiyoshi Mizui, Masafumi Hagiwara, Masao Nakagawa
1987 J jnl
Ultrasonic nonlinear parameter CT using nonlinear interaction of sound waves.
Syst. Comput. Jpn.
Yoshikatsu Nakagawa, Masao Nakagawa, Masahide Yoneyama, Makoto Kikuchi
1986 — conf
A Robust and Data Compressed Coding Scheme Using Interpolation Error.
ICC
Kiyoshi Mizui, Masafumi Hagiwara, Masao Nakagawa
1986 Misc conf
Implementation of a new type DSP PLL using high performance DSP DSSP-1.
ICASSP
Shinji Ono, T. Aoyama, Masafumi Hagiwara, Masao Nakagawa
1986 Misc conf
Range extended speech decoder for Modulo-PCM.
ICASSP
Masafumi Hagiwara, Masao Nakagawa