Akihito MORIMOTO


Investigation of Inter-Cell Interference Coordination Applying Transmission Power Reduction in Heterogeneous Networks for LTE-Advanced Downlink
Akihito MORIMOTO Nobuhiko MIKI Yukihiko OKUMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/06/01
Vol. E96-B  No. 6  pp. 1327-1337
Type of Manuscript:  Special Section PAPER (Special Section on Heterogeneous Networks for Future Cellular Systems)
Category: 
Keyword: 
LTE-Advancedheterogeneous networkinter-cell interference coordinationcell range expansiontransmission power reduction
 Summary | Full Text:PDF

Performance Evaluation of Interference Rejection Combining Receiver in Heterogeneous Networks for LTE-Advanced Downlink
Yusuke OHWATARI Akihito MORIMOTO Nobuhiko MIKI Yukihiko OKUMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/06/01
Vol. E96-B  No. 6  pp. 1265-1276
Type of Manuscript:  Special Section PAPER (Special Section on Heterogeneous Networks for Future Cellular Systems)
Category: 
Keyword: 
LTE-Advancedheterogeneous networkinterference rejection combininginter-cell interference
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Investigation on Transmission Power Control Suitable for Heterogeneous Network Employing Cell Range Expansion in LTE-Advanced Uplink
Akihito MORIMOTO Nobuhiko MIKI Hiroyuki ISHII Daisuke NISHIKAWA Yukihiko OKUMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/04/01
Vol. E96-B  No. 4  pp. 1051-1060
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
LTE-advancedheterogeneous networktransmission power controlcell range expansion
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Link Performance Modeling of Interference Rejection Combining Receiver in System Level Evaluation for LTE-Advanced Downlink
Yousuke SANO Yusuke OHWATARI Nobuhiko MIKI Akihito MORIMOTO Yukihiko OKUMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/12/01
Vol. E95-B  No. 12  pp. 3739-3751
Type of Manuscript:  Special Section PAPER (Special Section on Coding and Coding Theory-Based Signal Processing for Wireless Communications)
Category: 
Keyword: 
LTE-Advancedinterference rejection combininginter-cell interferencesystem level simulationlink performance modelingturbo equalizer
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Investigation on Interference Coordination Employing Almost Blank Subframes in Heterogeneous Networks for LTE-Advanced Downlink
Nobuhiko MIKI Yuya SAITO Masashige SHIRAKABE Akihito MORIMOTO Tetsushi ABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1208-1217
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
LTE-Advancedheterogeneous networkinter-cell interference coordinationalmost blank subframes
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Performance Evaluation in Heterogeneous Networks Employing Time-Domain Inter-Cell Interference Coordination and Cell Range Expansion for LTE-Advanced Downlink
Masashige SHIRAKABE Akihito MORIMOTO Nobuhiko MIKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1218-1229
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
LTE-Advancedheterogeneous networksinter-cell interference coordinationcell range expansion
 Summary | Full Text:PDF

Investigation of Inter-Node B Macro Diversity for Single-Carrier Based Radio Access in Evolved UTRA Uplink
Hiroyuki KAWAI Akihito MORIMOTO Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/01/01
Vol. E93-B  No. 1  pp. 125-134
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cellular systemspacket radio accessEvolved UTRAuplinkmacro diversitysoft handover
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Performance Evaluations of MBMS Signals Using Transmit/Receiver Diversity with SFN in OFDM Based Evolved UTRA Downlink
Akihito MORIMOTO Yoshihisa KISHIYAMA Motohiro TANNO Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1649-1659
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
Evolved UTRAOFDMMBMSsingle-frequency networktransmit diversity
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Experiments on Handover Using Combination of Bicast and Forwarding of IP Packet for Future IP-Based RANs
Motohiro TANNO Akihito MORIMOTO Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1735-1742
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
handoverbicastforwardingexperimentradio access network
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Coverage Performance of Common/Shared Control Signals Using Transmit Diversity in Evolved UTRA Downlink
Hidekazu TAOKA Akihito MORIMOTO Hiroyuki KAWAI Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1589-1599
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
OFDMtransmit diversityEvolved UTRAdownlinkcontrol signal
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IP Packet Loss Prevention Scheme with Bicast and Forwarding for Handover in Mobile Communications
Masahiko SAITO Akihito MORIMOTO Masao NAKAGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/03/01
Vol. E91-B  No. 3  pp. 750-760
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
hard handoverbicastforwardingIP packet
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Cell Selection Based on Shadowing Variation for Forward Link Broadband OFCDM Packet Wireless Access
Akihito MORIMOTO Sadayuki ABETA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 150-158
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part 1)
Category: Cell Selection
Keyword: 
broadband packet wireless accessOFCDMcell selectionhard handovershadowing
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Performance of Fast Cell Selection Coupled with Fast Packet Scheduling in High-Speed Downlink Packet Access
Akihito MORIMOTO Sadayuki ABETA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 2021-2031
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
mobile radiohigh-speed downlink packet accesshandoverfast cell selectionpacket scheduling
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Experiments on Inter-Sector Diversity Using Maximal Ratio Combining in W-CDMA Reverse Link
Akihito MORIMOTO Kenichi HIGUCHI Satoru FUKUMOTO Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 3012-3025
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
W-CDMAsite diversitytransmit power controlRake combining
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Experiments on Inter-Cell Site Diversity Using Two-Step Selection Combining in W-CDMA Reverse Link
Akihito MORIMOTO Kenichi HIGUCHI Satoru FUKUMOTO Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3  pp. 435-445
Type of Manuscript:  Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
Category: 
Keyword: 
DS-CDMAsite diversitytransmit power controlCRCSIR
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Adaptive Array Antennas for the Base Station of a Multi Processing Gain CDMA System
Akihito MORIMOTO Masaaki KATAYAMA Takaya YAMAZATO Akira OGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/12/25
Vol. E82-A  No. 12  pp. 2687-2696
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
adaptive array antennaCDMAdespreading procedureinterference cancellation
 Summary | Full Text:PDF