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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 12 of 12  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
SRW 2015-10-28
14:40
Tokyo Kikai-Sinko-Kaikan Bldg. (Tokyo) A Comparative Analysis of Measured Electric Field Strength of DTV and its Predictions
Hirokazu Sawada, Tomoshige Kan, Gabriel Porto Villardi, Kentaro Ishizu, Fumihide Kojima (NICT) SRW2015-53
 [more] SRW2015-53
pp.13-18
SR 2015-05-28
15:40
Hyogo Akashi-Sangyou-Koryu-Center Channel Direction Information Probing for Multi-Antenna Cognitive Radio System
Fang Yuan, Gabriel Porto Villardi, Fumihide Kojima, Hiroyuki Yano (NICT) SR2015-7
This work studies the problem of channel direction information (CDI) probing for cognitive radio systems with multiple a... [more] SR2015-7
pp.39-44
RCS, SR, SRW
(Joint)
2013-02-28
10:00
Tokyo Waseda Univ. Utilizing multi-location option for the coexistence among TVWS devices
Ha Nguyen Tran, Gabriel Porto Villardi, Zhou Lan, Hiroshi Harada (NICT) SR2012-98
 [more] SR2012-98
pp.89-94
SR 2012-07-27
13:50
Kagoshima Yakushima (an island in Kagoshima pref.) Computer Prediction of Broadcaster Contour and Service Areas for VHF/UHF Unlicensed White-Space Radio Systems
Gabriel Porto Villardi, Hiroshi Harada (NICT) SR2012-33
 [more] SR2012-33
pp.87-92
SR 2012-01-27
14:00
Kagoshima Kagoshima Coexistence of TVWS Secondary Networks via Optimum and Sub-optimum Power Selection Strategies
Yohannes D. Alemseged, Gabriel Porto Villardi, Chen Sun, Ha-Nguyen Tran, Hiroshi Harada (NICT) SR2011-98
As a recent developments, radio regulatory bodies are introducing flexible use of spectrum such as allowing the use of t... [more] SR2011-98
pp.119-124
SR 2012-01-27
15:30
Kagoshima Kagoshima Coexistence of Secondary User Networks under Primary User Constraints in TV White Space
Chen Sun, Gabriel Porto Villardi, Zhou Lan, Yohannes D. Alemseged, Ha Nguyen Tran, Hiroshi Harada (NICT) SR2011-101
 [more] SR2011-101
pp.139-145
SR 2011-04-22
15:05
Shimane Matsue Terrsa IEEE 802.11af Standardization Activities:TV White Space Security Issues
Chin-Sean Sum, Zhou Lan, Chen Sun, Yohannes D. Alemseged, Ha Nguyen Tran, Gabriel Porto Villardi, Hiroshi Harada (NICT) SR2011-16
IEEE 802.11af is the IEEE task group (TG) responsible for specifying the physical (PHY) and medium access control (MAC) ... [more] SR2011-16
pp.91-96
SR 2011-04-22
15:30
Shimane Matsue Terrsa On the Efficiency of Dynamic Frequency Selection Based Coexistence Mechanisms for TV White Space Enabled Cognitive Networks in Japan
Gabriel Porto Villardi, Chin-Sean Sum, Chen Sun, Yohannes D. Alemseged, Zhou Lan, Hiroshi Harada (NICT) SR2011-17
 [more] SR2011-17
pp.97-103
SAT, RCS
(Joint)
2010-08-27
16:20
Kagoshima Kagoshima Univ. Cross Layer Design of a Wireless Communication System in TV White Space
Chin-Sean Sum, Gabriel Porto Villardi, Junyi Wang, Tuncer Baykas, Zhou Lan, Mohammad Azizur Rahman, Chunyi Song, Chen Sun, Yohannes Alemseged, Ha Nguyen Tran, Stanislav Filin, Hiroshi Harada (NICT) RCS2010-104
This paper proposes a cross layer design for a practical cognitive communication system operating in the TV white space ... [more] RCS2010-104
pp.153-158
ITS, WBS
(Joint)
2009-12-09
14:00
Kumamoto Kumamoto University Analog Network Coding of Spreaded Signals with Packet Combining
Jian Rong Loh (Yokohama Nat Univ.), Gabriel Porto Villardi (NICT), Ryuji Kohno (Yokohama Nat Univ.) WBS2009-45
This paper is another effort of combining network coding and channel coding to achieve improved reliability of network c... [more] WBS2009-45
pp.49-54
RCS 2009-10-16
14:15
Kyoto ATR Cross Layer Approach of Distributed Spectrum Sensing
Yohannes D. Alemseged, Chen Sun, Ha Nguyen Tran, Gabriel Porto Villardi, Hiroshi Harada (NICT) RCS2009-129
 [more] RCS2009-129
pp.111-115
RCS, MoNA, WBS, SR, MW
(Joint)
2007-03-07
14:00
Kanagawa YRP A Cumulative Decision Feedback Approach for Energy Constrained Wireless Sensor Networks
Gabriel Porto Villardi (Yokohama National University), Giuseppe Thadeu Freitas de Abreu (University of Oulu), Ryuji Kohno (Yokohama National University)
 [more]
 Results 1 - 12 of 12  /   
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