Masakatsu OGAWA


Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment
Masakatsu OGAWA Takefumi HIRAGURI Kentaro NISHIMORI Naoki HONMA Kazuhiro TAKAYA Kazuo MURAKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/03/01
Vol. E94-B  No. 3  pp. 658-666
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication Technologies for Next-generation Mobile Multimedia Life)
Category: 
Keyword: 
IEEE802.11power savingportable access pointoverlapping BSS
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Development of Multi Channel Ad-Hoc Network System
Kentaro NISHIMORI Takefumi HIRAGURI Masakatsu OGAWA Naoki HONMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/03/01
Vol. E94-B  No. 3  pp. 667-675
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication Technologies for Next-generation Mobile Multimedia Life)
Category: 
Keyword: 
ad-hoc networksvertical antenna arrangementdistributed channel allocationmulti channels
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Transmission History Based Distributed Adaptive Contention Window Adjustment Algorithm Cooperating with Automatic Rate Fallback for Wireless LANs
Masakatsu OGAWA Takefumi HIRAGURI Kentaro NISHIMORI Kazuhiro TAKAYA Kazuo MURAKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/08/01
Vol. E93-B  No. 8  pp. 2063-2072
Type of Manuscript:  Special Section PAPER (Special Section on Implementation, Experiments, and Practice for Ad Hoc and Mesh Networks)
Category: 
Keyword: 
IEEE 802.11CSMA/CAcontention window adjustmentautomatic rate fallback
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A Novel Interference Avoidance Technique on Mobile Wireless Routers Using IEEE802.11n PSMP
Akira KISHIDA Takefumi HIRAGURI Masakatsu OGAWA Kentaro NISHIMORI Naoki HONMA Tetsu SAKATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/08/01
Vol. E93-B  No. 8  pp. 2053-2062
Type of Manuscript:  Special Section PAPER (Special Section on Implementation, Experiments, and Practice for Ad Hoc and Mesh Networks)
Category: 
Keyword: 
IEEE802.11nIEEE802.16emutual system interferencePSMPwireless relay
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Power Saving Scheme Suitable for Wireless LAN in Multimedia Communications
Takefumi HIRAGURI Masakatsu OGAWA Makoto UMEUCHI Tetsu SAKATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/09/01
Vol. E92-A  No. 9  pp. 2184-2190
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Wireless LAN System
Keyword: 
wireless LANpower savingquality of servicemulticastingbroadcasting
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Power Saving Control for Battery-Powered Portable WLAN APs
Masakatsu OGAWA Takefumi HIRAGURI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/09/01
Vol. E92-A  No. 9  pp. 2253-2256
Type of Manuscript:  Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
IEEE802.11power savingportable access point
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Proposal and Evaluation of a Mesh Wireless Local Area Network Architecture with Dual DCF-HCCA Channel Access Scheme in the Vicinity of Gateway Access Points
Luis LOYOLA Masakatsu OGAWA Kengo NAGATA Satoru AIKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/10/01
Vol. E89-B  No. 10  pp. 2752-2762
Type of Manuscript:  Special Section PAPER (Special Section on Mobile Multimedia Communications)
Category: 
Keyword: 
mesh networksIEEE 802.11wireless LANHCCAmulti-radio
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A Novel Media Access Control Using Multiple Queues for Voice over IP in Ad Hoc Networks--D2VTS Algorithm--
Masakatsu OGAWA Takeshi HATTORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 2136-2144
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
ad hoc networkIEEE 802.11packet schedulingVoIPQoS
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