Koji ISHIBASHI


Decentralized Multilevel Power Allocation for Random Access
Huifa LIN Koji ISHIBASHI Won-Yong SHIN Takeo FUJII 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/10/01
Vol. E98-B  No. 10  pp. 1978-1987
Type of Manuscript:  Special Section PAPER (Special Section on 5G Radio Access Networks―Part II: Multi-RAT Heterogeneous Networks and Smart Radio Technologies)
Category: 
Keyword: 
random accessdecentralized power allocationconvex optimizationmultipacket reception (MPR)successive interference cancellation (SIC)machine-to-machine (M2M) communications
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Nested Transmit Diversity Based on a Joint Network-Channel Coding
Koji ISHII Koji ISHIBASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/09/01
Vol. E96-B  No. 9  pp. 2261-2269
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
transmit diversity in time domainjoint network-channel codingnested codingnetwork coding
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Hierarchical Cooperation in Ultra-Wide Band Ad Hoc Networks
Won-Yong SHIN Koji ISHIBASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/03/01
Vol. E96-B  No. 3  pp. 887-890
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
hierarchical cooperation (HC)multi-hoppath-loss exponentpower-limitedthroughput scalingultra-wide band (UWB)
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Effect of Multiple Antennas on the Transport Capacity in Large-Scale Ad Hoc Networks
Won-Yong SHIN Koji ISHIBASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/10/01
Vol. E95-B  No. 10  pp. 3113-3119
Type of Manuscript:  PAPER
Category: Fundamental Theories for Communications
Keyword: 
ad hoc networkfadingmulti-hopmultiple antennasopportunistic routingscaling lawsource–destination pair
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Throughput Scaling of Ultra-Wide Band Ad Hoc Networks with Infrastructure
Won-Yong SHIN Koji ISHIBASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/09/01
Vol. E95-B  No. 9  pp. 2918-2921
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
Ad hoc networkbase station (BS)infrastructuremulti-hoppower-limitedthroughput scalingultra-wide band (UWB)
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Regional Diversity-Multiplexing Tradeoff
Won-Yong SHIN Koji ISHIBASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/10/01
Vol. E94-B  No. 10  pp. 2868-2871
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
multiple-input multiple-output (MIMO)outageregional diversity-multiplexing tradeoff (DMT)Rician
 Summary | Full Text:PDF(174.4KB)

Dirty Paper Coded Cooperation Utilizing Superposition Modulation
Koji ISHII Koji ISHIBASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/05/01
Vol. E91-B  No. 5  pp. 1540-1547
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
coded cooperation protocolsuperposition modulationdirty paper codinghalf-duplexiterative processing
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A Scalable Model of Shielded Capacitors Using Mirror Image Effects
Koji ISHIBASHI Ivan Chee-Hong LAI Kyoya TAKANO Minoru FUJISHIMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/12/01
Vol. E90-C  No. 12  pp. 2237-2244
Type of Manuscript:  Special Section PAPER (Special Section on Recent Technologies for Microwave and Millimeter-wave Passive Devices)
Category: 
Keyword: 
comb capacitorshieldscalable modelquality-factorCMOS
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On the Realization of Quantum Computing Devices with Carbon Nanotube Quantum Dots
Koji ISHIBASHI Satoshi MORIYAMA Tomoko FUSE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/11/01
Vol. E87-C  No. 11  pp. 1799-1803
Type of Manuscript:  Special Section PAPER (Special Section on New System Paradigms for Integrated Electronics)
Category: 
Keyword: 
quantum dotquantum computing devicecharge qubitspin qubitcarbon nanotube
 Summary | Full Text:PDF(669.3KB)