Yasushi YAMAO


Design of Dual-Band SHF BPF with Lower Band Reconfigurability and Direct Parallel-Connected Configuration
Yuki KADA Yasushi YAMAO 
Publication:   
Publication Date: 2018/10/01
Vol. E101-C  No. 10  pp. 775-783
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
reconfigurable circuitbandpass filtercoupling circuitdual-bandparallel connection
 Summary | Full Text:PDF(2.3MB)

Information Delivery Delay Reduction by Relay-Assisted Broadcast Transmission for ITS V2V Communications
Le Tien TRIEN Yasushi YAMAO 
Publication:   
Publication Date: 2018/09/01
Vol. E101-A  No. 9  pp. 1290-1297
Type of Manuscript:  Special Section PAPER (Special Section on Intelligent Transport Systems)
Category: 
Keyword: 
V2V802.11prelay-assistdelay
 Summary | Full Text:PDF(1.4MB)

Design and Fabrication of Three-Bit Reconfigurable Bandpass Filter Using Branch-Line Type Variable Resonator
Ryosuke KOBAYASHI Takumi KATO Kazuhiro AZUMA Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/07/01
Vol. E98-C  No. 7  pp. 636-643
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Microwaves, Millimeter-Waves
Keyword: 
bandpass filtertransmission linereconfigurable circuitquality factorcoupling coefficient
 Summary | Full Text:PDF(2.1MB)

EPWM-OFDM Signal Transmission against Nonlinearities of E/O Converters in Radio over Fiber Channel
Xiaoxue YU Yasushi YAMAO Motoharu MATSUURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 484-494
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
EPWMOFDMRoFnonlinearityMach-Zehnder modulatorDFB Laser Diode
 Summary | Full Text:PDF(2MB)

An Algorithm for Obtaining the Inverse for a Given Polynomial in Baseband
Yuelin MA Yasushi YAMAO Yoshihiko AKAIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/03/01
Vol. E96-A  No. 3  pp. 675-683
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
baseband polynomialorthogonal basisnonlinearity compensationpolynomial inversepredistortion
 Summary | Full Text:PDF(1.3MB)

CSMA/CA Unicast Communication Performance under Fading Environment with Two-Dimensional Distribution of Hidden Terminal
Jingze DAI Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/09/01
Vol. E95-B  No. 9  pp. 2708-2717
Type of Manuscript:  Special Section PAPER (Special Section on Emerging Technologies and Applications for Ad Hoc and Wireless Mesh Networks)
Category: 
Keyword: 
CSMA/CAhidden terminalfadingpacket error
 Summary | Full Text:PDF(2MB)

Cognitive Temporary Bypassing for Reliable Multi-Hop Transmission in Wireless Ad Hoc Networks
Kenichi NAGAO Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3391-3399
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
ad hocmulti-hopfadingroutingbypass
 Summary | Full Text:PDF(1.7MB)

Quantization Noise and Distortion Analysis of Envelope Pulse-Width Modulation (EPWM) Transmitters for OFDM Signal Amplification
Edwin M. UMALI Koji KAWAZOE Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/10/01
Vol. E93-A  No. 10  pp. 1724-1734
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Transmitter Design
Keyword: 
linear transmitterpower efficiencyEPWMOFDMdelta-sigma modulator
 Summary | Full Text:PDF(1.7MB)

Performance of Downlink DSTBC-WCDMA in Fast-Varying Time-Dispersive Channels
Edwin M. UMALI Joel Joseph S. MARCIANO, Jr. Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3815-3826
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
WCDMAMIMODSTBCperformance analysis
 Summary | Full Text:PDF(555.4KB)

Novel Band-Reconfigurable High Efficiency Power Amplifier Employing RF-MEMS Switches
Atsushi FUKUDA Hiroshi OKAZAKI Tetsuo HIROTA Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/11/01
Vol. E88-C  No. 11  pp. 2141-2149
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
band-switchable matching networkmicroelectro mechanical devicesmulti-bandswitchespower amplifiers
 Summary | Full Text:PDF(907.5KB)

FOREWORD
Yasushi YAMAO Gong KE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/07/01
Vol. E86-A  No. 7  pp. 1565-1565
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(60.8KB)

Wireless QoS-Aware Resource Management for CDMA Packet Multimedia Cellular Radio
Lan CHEN Hidetoshi KAYAMA Narumi UMEDA Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/07/01
Vol. E86-A  No. 7  pp. 1576-1584
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
quality of servicewireless QoSradio resource managementCDMA packetmax/min requirements
 Summary | Full Text:PDF(1.9MB)

Transmit Power and Window Control to Reduce Inter-User Interference in CDMA Cellular Packet Systems
Hiroyuki KAWAI Shinzo OHKUBO Toru OTSU Hirohito SUDA Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/07/01
Vol. E86-A  No. 7  pp. 1698-1706
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
mobile communicationscode division multiple accesspacket transmissioninterference reductiontransmit power controltransmission delay
 Summary | Full Text:PDF(1.2MB)

Multi-Hop Wireless Link System for New Generation Mobile Radio Access Networks
Toru OTSU Yuji ABURAKAWA Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/08/01
Vol. E85-B  No. 8  pp. 1542-1551
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
mobile communicationwireless multi-hop networkco-frequency interferencetransmission power
 Summary | Full Text:PDF(818.5KB)

Complexity Reduction of Turbo Decoding
Akira SHIBUTANI Hirohito SUDA Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9  pp. 2705-2709
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
turbo codingiterative decodingCRCW-CDMA
 Summary | Full Text:PDF(509.9KB)

FOREWORD
Susumu YOSHIDA Fumiyuki ADACHI Jun HORIKOSHI Masahiro UMEHIRA Shingo OHMORI Yasutaka OGAWA Takahiko OGINO Tadashi FUJINO Yukitsuna FURUYA Koichi HONMA Yasushi YAMAO Yoshihide YAMADA Fumio WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3  pp. 355-358
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(549.9KB)

Predictive Antenna Selection Diversity (PASD) for TDMA Mobile Radio
Yasushi YAMAO Yoshinori NAGAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/05/25
Vol. E77-B  No. 5  pp. 641-646
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Signal Processing in Mobile Radio Communications)
Category: 
Keyword: 
mobile communicationdiversityantenna selectionTDMAlinear prediction
 Summary | Full Text:PDF(476.5KB)