Kenta Umebayashi
Kenta Umebayashi
Η διεύθυνση ηλεκτρονικού ταχυδρομείου έχει επαληθευτεί στον τομέα cc.tuat.ac.jp - Αρχική σελίδα
Τίτλος
Παρατίθεται από
Παρατίθεται από
Έτος
On the selection of the best detection performance sensors for cognitive radio networks
Z Khan, J Lehtomaki, K Umebayashi, J Vartiainen
IEEE Signal Processing Letters 17 (4), 359-362, 2010
912010
Frequency and time domain channel models for nanonetworks in terahertz band
J Kokkoniemi, J Lehtomäki, K Umebayashi, M Juntti
IEEE Transactions on Antennas and Propagation 63 (2), 678-691, 2014
622014
On the measurement of duty cycle and channel occupancy rate
JJ Lehtomaki, R Vuohtoniemi, K Umebayashi
IEEE Journal on Selected Areas in Communications 31 (11), 2555-2565, 2013
612013
Efficient decision fusion for cooperative spectrum sensing based on OR-rule
K Umebayashi, JJ Lehtomaki, T Yazawa, Y Suzuki
IEEE transactions on wireless communications 11 (7), 2585-2595, 2012
522012
Study on soft decision based cooperative sensing for cognitive radio networks
H Uchiyama, K Umebayashi, T Fujii, F Ono, K Sakaguchi, Y Kamiya, ...
IEICE transactions on communications 91 (1), 95-101, 2008
512008
Energy detection based estimation of channel occupancy rate with adaptive noise estimation
JJ Lehtomaki, R Vuohtoniemi, K Umebayashi, JP Makela
IEICE Transactions on Communications 95 (4), 1076-1084, 2012
392012
Study on cooperative sensing in cognitive radio based ad-hoc network
H Uchiyama, K Umebayashi, Y Kamiya, Y Suzuki, T Fujii, F Ono, ...
2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio …, 2007
382007
Analysis of cognitive radio networks with imperfect sensing
I Suliman, J Lehtomäki, T Bräysy, K Umebayashi
2009 IEEE 20th international symposium on personal, indoor and mobile radio …, 2009
292009
Direct communication between terminals in infrastructure based networks
J Lehtomäki, I Suliman, J Vartiainen, M Bennis, A Taparugssanagorn, ...
Proc. ICT Mobile Wireless Commun. Summit, 1-8, 2008
282008
Improved channel occupancy rate estimation
JJ Lehtomäki, M López-Benítez, K Umebayashi, M Juntti
IEEE Transactions on Communications 63 (3), 643-654, 2015
272015
Blind adaptive estimation of modulation scheme for software defined radio
K Umebayashi, S Ishii, R Kohno
11th IEEE International Symposium on Personal Indoor and Mobile Radio …, 2000
232000
Threshold-setting for spectrum sensing based on statistical information
K Umebayashi, K Hayashi, JJ Lehtomäki
IEEE Communications Letters 21 (7), 1585-1588, 2017
222017
Simple primary user signal area estimation for spectrum measurement
K Umebayashi, K Moriwaki, R Mizuchi, H Iwata, S Tiiro, JJ Lehtomäki, ...
IEICE Transactions on Communications 99 (2), 523-532, 2016
212016
Duty cycle and noise floor estimation with Welch FFT for spectrum usage measurements
K Umebayashi, R Takagi, N Ioroi, Y Suzuki, JJ Lehtomäki
2014 9th International Conference on Cognitive Radio Oriented Wireless …, 2014
212014
Development of a measurement system for spectrum awareness
K Umebayashi, S Tiiro, JJ Lehtomäki
1st International Conference on 5G for Ubiquitous Connectivity, 234-239, 2014
192014
A causal channel model for the terahertz band
K Tsujimura, K Umebayashi, J Kokkoniemi, J Lehtomäki, Y Suzuki
IEEE Transactions on Terahertz Science and Technology 8 (1), 52-62, 2017
162017
Dynamic selection of CWmin in cognitive radio networks for protecting IEEE 802.11 primary users
K Umebayashi, Y Suzuki, JJ Lehtomäki
2011 6th International ICST Conference on Cognitive Radio Oriented Wireless …, 2011
162011
Secure download system based on software defined radio composed of FPGAs
H Uchikawa, K Umebayashi, R Kohno
IEICE transactions on communications 85 (12), 2601-2609, 2002
162002
Smart spectrum for future wireless world
T Fujii, K Umebayashi
IEICE Transactions on Communications 100 (9), 1661-1673, 2017
142017
Estimation of primary channel activity statistics in cognitive radio based on imperfect spectrum sensing
OH Toma, M Lopez-Benitez, DK Patel, K Umebayashi
IEEE Transactions on Communications 68 (4), 2016-2031, 2020
132020
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