Masataka IIZUKA


Null-Space Expansion for Multiuser Massive MIMO Inter-User Interference Suppression in Time Varying Channels
Tatsuhiko IWAKUNI Kazuki MARUTA Atsushi OHTA Yushi SHIRATO Takuto ARAI Masataka IIZUKA 
Publication:   
Publication Date: 2017/05/01
Vol. E100-B  No. 5  pp. 865-873
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
inter-user interferencechannel time variationmultiuser MIMOmassive MIMOnull-space expansion
 Summary | Full Text:PDF(2.2MB)

Massive Antenna Systems for Wireless Entrance (MAS-WE): Practical Application of Massive MIMO with Simplified Space Division Multiplexing Schemes
Kazuki MARUTA Atsushi OHTA Satoshi KUROSAKI Takuto ARAI Masataka IIZUKA 
Publication:   
Publication Date: 2017/05/01
Vol. E100-B  No. 5  pp. 779-787
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
Massive MIMOMultiuser MIMOinter-user interference cancellationschedulingspatial channel correlationsectorization
 Summary | Full Text:PDF(2.6MB)

Antenna Array Arrangement for Massive MIMO to Reduce Channel Spatial Correlation in LOS Environment
Takuto ARAI Atsushi OHTA Yushi SHIRATO Satoshi KUROSAKI Kazuki MARUTA Tatsuhiko IWAKUNI Masataka IIZUKA 
Publication:   
Publication Date: 2017/04/01
Vol. E100-B  No. 4  pp. 594-601
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
massive MIMOmulti-user MIMOantenna arrangementline of sightspatial correlation
 Summary | Full Text:PDF(2.8MB)

Spectral Efficiency Improvement of Fractional Frequency Reuse by Inter-Cell Interference Cancellation on Cooperative Base Station
Kazuki MARUTA Atsushi OHTA Masataka IIZUKA Takatoshi SUGIYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/06/01
Vol. E95-B  No. 6  pp. 2164-2168
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
inter-cell interference cancellationbase station cooperationfractional frequency reuse
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Proposal of Wireless Traffic Control Schemes for Wireless LANs
Takefumi HIRAGURI Takeo ICHIKAWA Masataka IIZUKA Shuji KUBOTA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/05/01
Vol. E91-B  No. 5  pp. 1340-1348
Type of Manuscript:  Special Section PAPER (Special Section on Communication Quality)
Category: QoS Control Mechanism and System
Keyword: 
wireless LANIEEE802.11traffic controlload barancingQoS
 Summary | Full Text:PDF(1.1MB)

An Effective Data Transfer Method for IEEE 802.11 Wireless LANs
Kazuyoshi SAITOH Yasuhiko INOUE Tomoaki KUMAGAI Masataka IIZUKA Satoru AIKAWA Masahiro MORIKURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/03/01
Vol. E88-B  No. 3  pp. 1266-1270
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
CSMA/CAmultirate controlpriority controlslot time
 Summary | Full Text:PDF(1.5MB)

Novel Multiple Access Protocol for Voice over IP in Wireless LAN
Takefumi HIRAGURI Takeo ICHIKAWA Masataka IIZUKA Masahiro MORIKURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 2145-2152
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
wireless LANCSMA/CAVoIPH.323
 Summary | Full Text:PDF(825KB)

Reliable Multicast Protocol with a Representative Acknowledgment Scheme for Wireless Systems
Yasuhiko INOUE Masataka IIZUKA Hitoshi TAKANASHI Masahiro MORIKURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/04/01
Vol. E84-B  No. 4  pp. 853-862
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
multicastreliabilityretransmissionstation group
 Summary | Full Text:PDF(1.1MB)

A Logical Airlink Control Procedure for Packet Radio Systems
Yasuhiko INOUE Masataka IIZUKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/08/25
Vol. E80-B  No. 8  pp. 1192-1197
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Computing)
Category: 
Keyword: 
packet radioairlink protocolflow controlretransmission control
 Summary | Full Text:PDF(508.1KB)

A Novel Packet Data Transmission Strategy for Personal Handy-Phone System
Masataka IIZUKA Hidetoshi KAYAMA Hiroshi YOSHIDA Takeshi HATTORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/05/25
Vol. E80-B  No. 5  pp. 763-769
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
packet radiochannel structureTDMAthroughputPHS
 Summary | Full Text:PDF(575KB)