Tomohumi TAKATA


Scheduling Algorithm with Multiple Feedbacks for Supporting Coordinated Multipoint Operation for LTE-Advanced Systems
Masayuki HOSHINO Yasuaki YUDA Tomohumi TAKATA Akihiko NISHIO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/11/01
Vol. E96-B  No. 11  pp. 2906-2912
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MIMOcoordinated multipoint transmissiondynamic point selectionfeedbackLTE-Advanced systems
 Summary | Full Text:PDF

Effects of a Phase Rotation Scheme on the DTX Detection Performance for the E-UTRA Uplink ACK/NACK Signals
Seigo NAKAO Tomohumi TAKATA Daichi IMAMURA Katsuhiko HIRAMATSU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1  pp. 262-272
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
cyclic shift sequenceCDMAinter-code interferencephase rotationHARQE-UTRADTX detectionuplink control channel
 Summary | Full Text:PDF

A Novel Phase Rotation Scheme on the Constellations for the E-UTRA Uplink ACK/NACK Signals
Seigo NAKAO Tomohumi TAKATA Daichi IMAMURA Katsuhiko HIRAMATSU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3459-3469
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
phase rotationCDMAinter-code interferenceCS sequencesE-UTRAuplink control channel
 Summary | Full Text:PDF

A Novel Spreading Code Design for E-UTRA Uplink Control Channel and Its Performance
Seigo NAKAO Tomohumi TAKATA Masaru FUKUOKA Daichi IMAMURA Katsuhiko HIRAMATSU Kazuyuki MIYA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/07/01
Vol. E92-B  No. 7  pp. 2433-2441
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
E-UTRAuplink control channelCDMAcyclic shift sequencesinter-code interference
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Pilot Signal Generation Scheme Using Frequency-Dependent Cyclic Shift ZC Sequence for Inter-Cell Interference Mitigation
Daichi IMAMURA Yoshihiko OGAWA Takashi IWAI Tomohumi TAKATA Katsuhiko HIRAMATSU Kazuyuki MIYA Koichi HOMMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1680-1687
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
cyclic shiftZadoff-Chu sequenceCCIinter-cell interferencepilot signalSC-FDMAE-UTRALTE
 Summary | Full Text:PDF