Janne J. LEHTOMÄKI


Welch FFT Segment Size Selection Method for FFT Based Wide Band Spectrum Measurement
Hiroki IWATA Kenta UMEBAYASHI Janne J. LEHTOMÄKI Shusuke NARIEDA 
Publication:   
Publication Date: 2018/07/01
Vol. E101-B  No. 7  pp. 1733-1743
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cognitive radioduty cycledynamic spectrum accessspectrum measurementWelch FFT
 Summary | Full Text:PDF(1.7MB)

Welch FFT Segment Size Selection Method for Spectrum Awareness System
Hiroki IWATA Kenta UMEBAYASHI Samuli TIIRO Janne J. LEHTOMÄKI Miguel LÓPEZ-BENÍTEZ Yasuo SUZUKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/08/01
Vol. E99-B  No. 8  pp. 1813-1823
Type of Manuscript:  PAPER
Category: Fundamental Theories for Communications
Keyword: 
cognitive radioduty cycledynamic spectrum accessspectrum measurementWelch FFT
 Summary | Full Text:PDF(1.9MB)

Simple Primary User Signal Area Estimation for Spectrum Measurement
Kenta UMEBAYASHI Kazuki MORIWAKI Riki MIZUCHI Hiroki IWATA Samuli TIIRO Janne J. LEHTOMÄKI Miguel LÓPEZ-BENÍTEZ Yasuo SUZUKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/02/01
Vol. E99-B  No. 2  pp. 523-532
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
dynamic spectrum accesssmart spectrum accessspectrum measurementcognitive radiosignal detectionsignal area estimation
 Summary | Full Text:PDF(2.7MB)

Analysis of Cognitive Radio Networks with Imperfect Sensing
Isameldin Mohammed SULIMAN Janne J. LEHTOMÄKI Kenta UMEBAYASHI Marcos KATZ 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/06/01
Vol. E96-B  No. 6  pp. 1605-1615
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
cognitive radiosperformance analysiscontinuous time Markov chainstate dependent transition ratesimperfect sensingmulti-channel support
 Summary | Full Text:PDF(1.9MB)