Masaaki KATAYAMA


Cooperative Transmission Scheme with the Reactivation Condition of Inactive Nodes in Solar-Powered Wireless Sensor Networks
Kentaro OTA  Kentaro KOBAYASHI  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2012/02/01
Vol. J95-B  No. 2  pp. 246-256
Type of Manuscript: Special Section PAPER (Special Issue on Student Research for Future Communication Technology)
Category: 
Keyword: 
wireless sensor networksenergy harvestingsolar energycooperative transmissioninactive node reactivation condition
  Summary |  Full Text(in Japanese):PDF (719.3KB)

Channel Estimator by Sum of Kalman-Based Estimation and Interpolation Estimation for MC-CDMA Based Inter-Vehicle Communication
Noriaki HIRAIWA  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2011/02/01
Vol. J94-B  No. 2  pp. 304-307
Type of Manuscript: Special Section LETTER (Special Issue on Student Research Building the Future of Communication Technology)
Category: 
Keyword: 
inter-vehicle communicationMC-CDMAchannel estimationKalman filterturbo equalization
  Summary |  Full Text(in Japanese):PDF (273.9KB)

Kalman Channel Estimator for BFDM/OQAM System in Time-Frequency Dispersive Channels
Bayarpurev MONGOL  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2010/10/01
Vol. J93-B  No. 10  pp. 1466-1480
Type of Manuscript: PAPER
Category: 
Keyword: 
time-frequency dispersive channelspulse-shaping OFDMBFDM/OQAMchannel estimationKalman filter
  Summary |  Full Text(in Japanese):PDF (955.6KB)

Correlation Estimation for Joint Decoding of Correlated Observations According to ADC Bit Levels
Kentaro KOBAYASHI  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2010/05/01
Vol. J93-A  No. 5  pp. 353-364
Type of Manuscript: PAPER
Category: 
Keyword: 
joint decodingcorrelation estimationestimation errorADC bit levelwireless sensor networks
  Summary |  Full Text(in Japanese):PDF (510.5KB)

Turbo Equalization for Inter-Vehicle Communication based on MC-CDMA
Noriaki HIRAIWA  Atsunori SAKATA  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2009/01/01
Vol. J92-B  No. 1  pp. 367-369
Type of Manuscript: Special Section LETTER (Special Issue on Student Research for Future Communication Technology)
Category: 
Keyword: 
inter-vehicle communicationturbo equalizationMC-CDMAmultiple access interference
  Summary |  Full Text(in Japanese):PDF (169.5KB)

Mitigation of Satellite Non-linear Effect Using SLM and Iterative Distortion Compensation for OFDM in Satellite Channel
Tomohiro AMAN  Takaya YAMAZATO  Masaaki KATAYAMA  Akira OGAWA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2008/12/01
Vol. J91-B  No. 12  pp. 1644-1646
Type of Manuscript: Special Section PAPER (Special Issue on Satellite Communication Technologies and Their Applications for Secure and Safe Society)
Category: 
Keyword: 
satellite channelOFDMnonlinear distortioniterative distortion compensationSLM (selected mapping)
  Summary |  Full Text(in Japanese):PDF (187.7KB)

Spatial Diversity Scheme with Multiple-Transmit/Receive Antennas and Relay Terminals for Reliable Wireless Control
Ryosuke UCHIDA  Hiraku OKADA  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2008/05/01
Vol. J91-B  No. 5  pp. 585-594
Type of Manuscript: PAPER
Category: 
Keyword: 
MIMOSTBCradio communication relaycooperative diversity
  Summary |  Full Text(in Japanese):PDF (393.5KB)

Correlations of Noise Waveforms at Different Outlets of Power-Line Network
Akio KAWAGUCHI  Hiraku OKADA  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2007/11/01
Vol. J90-A  No. 11  pp. 851-860
Type of Manuscript: PAPER
Category: 
Keyword: 
power-line communicationsnoise characteristicscorrelation
  Summary |  Full Text(in Japanese):PDF (1.1MB)

Hierarchical Coding Scheme for Optical Wireless Communicaiton Using LED Traffic Light and High-Speed Camera
Kyoichiro MASUDA  Takaya YAMAZATO  Hiraku OKADA  Masaaki KATAYAMA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2007/09/01
Vol. J90-A  No. 9  pp. 696-704
Type of Manuscript: PAPER
Category: 
Keyword: 
LEDITSvisible light communicationhierarchical coding
  Summary |  Full Text(in Japanese):PDF (785.7KB)

A Method for Reducing the Influence of the Interference Considering ADC Nonlinearity in an OFDM Receiver
Manabu SAWADA  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2007/06/01
Vol. J90-B  No. 6  pp. 577-584
Type of Manuscript: PAPER
Category: 
Keyword: 
OFDMADCnonlinearityinterference
  Summary |  Full Text(in Japanese):PDF (1MB)

Coded Modulation in Consideration of State of Signals for M-ary PSK Coherent Signals
Takahiro OTAKE  Hiraku OKADA  Takaya YAMAZATO  Kouichi YAMAZAKI  Masaaki KATAYAMA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2007/03/01
Vol. J90-A  No. 3  pp. 257-261
Type of Manuscript: LETTER
Category: 
Keyword: 
quantum communication systemsM-ary PSK coherent state signalstrellis coded modulation
  Summary |  Full Text(in Japanese):PDF (746.3KB)

Compensation Scheme for Nonlinear Distortion with 8PSK/OFDM Transmission in Nonlinear Satellite Channel
Tomoya YAMAOKA  Takaya YAMAZATO  Hiraku OKADA  Masaaki KATAYAMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2007/02/01
Vol. J90-B  No. 2  pp. 138-147
Type of Manuscript: PAPER
Category: 
Keyword: 
satellite channelOFDMnonlinear distortioniterative compensation
  Summary |  Full Text(in Japanese):PDF (512.1KB)

Route Characteristic Estimation for Multi-Route Coding in Wireless Multihop Networks
Hiraku OKADA  Motoaki UMAKOSHI  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2007/01/01
Vol. J90-B  No. 1  pp. 93-96
Type of Manuscript: LETTER
Category: 
Keyword: 
wireless multihop networkmulti-route codingroute characteristic estimation
  Summary |  Full Text(in Japanese):PDF (393.2KB)

Iterative Channel Decoding Scheme Using the Correlation of Transmitted Information Sequences in Sensor Networks
Kentaro KOBAYASHI  Takaya YAMAZATO  Hiraku OKADA  Masaaki KATAYAMA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2006/12/01
Vol. J89-A  No. 12  pp. 1044-1056
Type of Manuscript: Special Section PAPER (Special Section on Sensor Networks)
Category: 
Keyword: 
sensor networkcorrelationiterative decoding
  Summary |  Full Text(in Japanese):PDF (1.7MB)

Influence of Characteristics of Wireless Channels on Quality of Wireless Control Systems
Ryosuke UCHIDA  Hiraku OKADA  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2006/12/01
Vol. J89-A  No. 12  pp. 1104-1107
Type of Manuscript: Special Section PAPER (Special Section on Sensor Networks)
Category: 
Keyword: 
wireless controltelecontroltelemetrydiversity
  Summary |  Full Text(in Japanese):PDF (331.4KB)

A Study on Route Selection Metrics for the Multiple-Route Packet Combining Scheme in Wireless Multihop Networks
Yasuhiro HIRAYAMA  Hiraku OKADA  Takaya YAMAZATO  Masaaki KATAYAMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2006/10/01
Vol. J89-B  No. 10  pp. 2047-2051
Type of Manuscript: LETTER
Category: 
Keyword: 
multiple-route packet combiningwireless multihop networksmultipath routingroute selection
  Summary |  Full Text(in Japanese):PDF (568.7KB)

Performance Analysis of UWB Impulse Radar Receiver Using Parallel IPCP
Hiroyuki HATANO  Takaya YAMAZATO  Hiraku OKADA  Masaaki KATAYAMA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2006/06/01
Vol. J89-A  No. 6  pp. 544-556
Type of Manuscript: PAPER
Category: 
Keyword: 
UWBimpulse radarmeasurementdetectionITS
  Summary |  Full Text(in Japanese):PDF (469.2KB)