Katsuhiro NAITO


Traffic Adaptive Distributed Backoff Control Mechanism for Cluster-Based IEEE802.15.4 WSNs with Traffic Fluctuations
Kazuo MORI Katsuhiro NAITO Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/05/01
Vol. E95-B  No. 5  pp. 1702-1710
Type of Manuscript:  PAPER
Category: Network
Keyword: 
backofftraffic adaptationwireless sensor networksIEEE802.15.4MACtraffic fluctuation
 Summary | Full Text:PDF

Enhanced 2-Level Traffic Adaptive Active Period Control for IEEE802.15.4 Cluster-Based Wireless Sensor Networks
Keiji KUBO Kazuo MORI Katsuhiro NAITO Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/09/01
Vol. E94-B  No. 9  pp. 2521-2531
Type of Manuscript:  PAPER
Category: Network
Keyword: 
wireless sensor networksIEEE802.15.4MACtraffic adaptationnon-uniform traffic
 Summary | Full Text:PDF

Resource Allocation Based on TCP Performance in Base Station Diversity Systems
Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/08/01
Vol. E94-B  No. 8  pp. 2357-2365
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
wireless InternetTCPresource allocationbase station diversity
 Summary | Full Text:PDF

Traffic Adaptive Backoff Window Control for IEEE 802.15.4 MAC in Cluster-Based WSNs with Various Traffic Fluctuations
Kazuo MORI Katsuhiro NAITO Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/07/01
Vol. E94-B  No. 7  pp. 1901-1913
Type of Manuscript:  PAPER
Category: Network
Keyword: 
backofftraffic adaptationwireless sensor networksIEEE802.15.4MACtraffic non-uniformity
 Summary | Full Text:PDF

Traffic Adaptive MAC Mechanism for IEEE 802.15.4 Cluster Based Wireless Sensor Networks with Various Traffic Non-uniformities
Mario ARZAMENDIA Kazuo MORI Katsuhiro NAITO Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/11/01
Vol. E93-B  No. 11  pp. 3035-3047
Type of Manuscript:  PAPER
Category: Network
Keyword: 
Wireless Sensor NetworksIEEE 802.15.4MAC layerduty cycletraffic adaptationtraffic non-uniformity
 Summary | Full Text:PDF

Evaluation of Reliable Multicast Delivery in Base Station Diversity Systems
Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/06/01
Vol. E93-B  No. 6  pp. 1615-1619
Type of Manuscript:  LETTER
Category: Internet
Keyword: 
wireless Internet accessbase station diversityreliable multicastIP multicast
 Summary | Full Text:PDF

Adaptive Transmit Window Control for Channel State Based CDMA Downlink Packet Communications
Kazuo MORI Katsuhiro NAITO Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/09/01
Vol. E92-A  No. 9  pp. 2248-2252
Type of Manuscript:  Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
transmission controlwindow controltransmission powerCDMAdownlinksoft handoff
 Summary | Full Text:PDF

Downlink Multihop Transmission Technique for Asymmetric Traffic Accommodation in DS-CDMA/FDD Cellular Communications
Kazuo MORI Katsuhiro NAITO Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/10/01
Vol. E91-B  No. 10  pp. 3122-3131
Type of Manuscript:  Special Section PAPER (Special Section on Next-Generation Mobile Multimedia Communications)
Category: 
Keyword: 
asymmetric trafficmultihop transmissionsCDMAFDDcellular systems
 Summary | Full Text:PDF

Model Based Prediction of Uplink Multi-Path Fading Channel Response for Pre-Equalization in Mobile MC-CDMA Systems
Gagik MKRTCHYAN Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/02/01
Vol. E91-B  No. 2  pp. 446-458
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MC-CDMApre-equalizationmulti-path fading channelmodel-based prediction methodML estimation
 Summary | Full Text:PDF

Asymmetric Traffic Accommodation Using Adaptive Cell Sizing Technique for CDMA/FDD Cellular Packet Communications
Kazuo MORI Katsuhiro NAITO Hideo KOBAYASHI Hamid AGHVAMI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/07/01
Vol. E90-A  No. 7  pp. 1271-1279
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
asymmetric trafficfrequency division duplexingcellular systemCDMAmultimedia communicationscell size control
 Summary | Full Text:PDF

Downlink Packet Transmission Control Based on Soft Handoff Status in CDMA Cellular Packet Networks
Abubaker KHUMSI Kazuo MORI Katsuhiro NAITO Hideo KOBAYASHI Hamid AGHVAMI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/05/01
Vol. E90-B  No. 5  pp. 1252-1256
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
mobile communicationsCDMAdownlinktransmit power controlsoft handofftransmission control
 Summary | Full Text:PDF

PAPR Reduction of OFDM Signal by Use of DSI Method with Time-Frequency Domain Swapping Algorithm
Pisit BOONSRIMUANG Katsuhiro NAITO Kazuo MORI Tawil PAUNGMA Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/04/01
Vol. E90-B  No. 4  pp. 1001-1006
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDMPAPRdummy sub-carriersnon-linear amplifier
 Summary | Full Text:PDF

Evolutional Algorithm Based Learning of Time Varying Multipath Fading Channels for Software Defined Radio
Gagik MKRTCHYAN Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3269-3273
Type of Manuscript:  Special Section LETTER (Special Section on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
evolutional algorithmssoftware-defined radiotime-varying multipath fading channeldynamic learning systems
 Summary | Full Text:PDF

Doppler Spread Estimation Method for OFDM Signal Using Mean Square of Channel Impulse Response's Time Derivative
Gagik MKRTCHYAN Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/10/01
Vol. E89-B  No. 10  pp. 2961-2966
Type of Manuscript:  LETTER
Category: Antennas and Propagation
Keyword: 
Doppler spreadOFDMtime varying multipath fading channel
 Summary | Full Text:PDF

Complexity Reduced Maximum Likelihood Detection for SDM-OFDM System
Yuanrun TENG Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/07/01
Vol. E89-B  No. 7  pp. 2084-2087
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
MIMOSDM-OFDMspatial diversityMLD
 Summary | Full Text:PDF

Performance Evaluations of DCT Interpolation-Based Channel Estimation Method for MIMO-OFDM System
Yuanrun TENG Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/09/01
Vol. E88-B  No. 9  pp. 3806-3810
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
MIMOOFDMDCTchannel estimation
 Summary | Full Text:PDF

New Analytical Model for TCP in Wireless Environments
Katsuhiro NAITO Hiraku OKADA Masato SAITO Takaya YAMAZATO Masaaki KATAYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/07/01
Vol. E85-A  No. 7  pp. 1501-1510
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
TCPMarkov chainthroughputwireless
 Summary | Full Text:PDF