Presentation 2015-05-29
A study on margin for spectrum sensing based on statistical information of spectrum utilization
Kazuhiro Hayashi, Kenta Umebayashi, Yasuo Suzuki,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we investigate design of spectrum sensing based on statistics of spectrum usage for spectrum sharing between PU (Primary User) and SU (Secondary User). In a conventional spectrum sensing based on statistics of spectrum usage, average received signal power, average noise power, and transition probability are used as the statistics. In this case, the statistics are estimated, therefore effect of the estimation error has to be considered. In this paper, we assume that the average noise power is available. In addition, we use a following design criteria for the spectrum sensing: minimization of false alarm rate (corresponding to chance of spectrum usage by SU) subject to satisfying target. To satisfy the constraint, we employ a margin. Based on investigation of transition probability estimation error, we reveal that it does not require any margin. On the other hand, we show proper margin for estimation error of average signal power estimation. Numerical results show the validity of the margin. In addition, the our approach can increase chances of spectrum usage by SU compared to a typical spectrum sensing approach where no statical information is not used.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Dynamic spectrum access / Spectrum sensing / Statistical information
Paper # SR2015-11
Date of Issue 2015-05-21 (SR)

Conference Information
Committee SR
Conference Date 2015/5/28(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Akashi-Sangyou-Koryu-Center
Topics (in Japanese) (See Japanese page)
Topics (in English) Cognitive radio, Efficient spectrum utilization, Software defined radio, etc.
Chair Kei Sakaguchi(Osaka Univ.)
Vice Chair Takeo Fujii(Univ. of Electro-Comm.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.)
Secretary Takeo Fujii(Tohoku Univ.) / Kenta Umebayashi(Shinshu Univ.)
Assistant Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT)

Paper Information
Registration To Technical Committee on Smart Radio
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A study on margin for spectrum sensing based on statistical information of spectrum utilization
Sub Title (in English)
Keyword(1) Dynamic spectrum access
Keyword(2) Spectrum sensing
Keyword(3) Statistical information
1st Author's Name Kazuhiro Hayashi
1st Author's Affiliation Tokyo University of Agriculture and Technology(Tokyo University of Agriculture and Technology)
2nd Author's Name Kenta Umebayashi
2nd Author's Affiliation Tokyo University of Agriculture and Technology(Tokyo University of Agriculture and Technology)
3rd Author's Name Yasuo Suzuki
3rd Author's Affiliation Tokyo University of Agriculture and Technology(Tokyo University of Agriculture and Technology)
Date 2015-05-29
Paper # SR2015-11
Volume (vol) vol.115
Number (no) SR-62
Page pp.pp.65-72(SR),
#Pages 8
Date of Issue 2015-05-21 (SR)