Presentation 2017-01-19
Study of Optimum Threshold Design According to SNR in Updating Processing of State Probabilities for Low Complexity and High Accuracy Measurement of Channel Occupancy Ratio and Channel Transition Ratio
Hayato Soya, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Humihito Sasamori, Shirou Handa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) It's necessary to select the most suitable channel to get many access chances in the cognitive radio.When we chose the most suitable channel,Channel occupancy ratio and channel transition ration is suitable parameter to presume a channel connection chance.We have proposed highly accuracy and low complexity measurement for channel occupancy ratio and channel transition ratio.We propose the method to set up a threshold different from a sign judgment in process of updating the likelihood information to which it was given from electric power presumptionlikelihood information is divisible into a low likelihood and high likelihood group by a new threshold. A low likelihood sample is updationg by Using the temporary transition rate obtained from high likelihood information and the next symbol.We assume that this threshold chooses the most suitable threshold accordingly according to SNR.From the simulation,we show the proposed measurement achieves higher accuracy but lower complexity measurement than the conventional ones.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Cognitive Radio / Channel Occupancy Ratio / Channel Transition Ratio / Markov Model
Paper # SR2016-80
Date of Issue 2017-01-12 (SR)

Conference Information
Committee SR
Conference Date 2017/1/19(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Himegin Hall
Topics (in Japanese) (See Japanese page)
Topics (in English) Cognitive wireless network, Cross layer wireless technology, SDN, etc.
Chair Takeo Fujii(Univ. of Electro-Comm.)
Vice Chair Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.)
Secretary Kenta Umebayashi(Shinshu Univ.) / Masayuki Ariyoshi(NICT) / Suguru Kameda
Assistant Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.)

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) Study of Optimum Threshold Design According to SNR in Updating Processing of State Probabilities for Low Complexity and High Accuracy Measurement of Channel Occupancy Ratio and Channel Transition Ratio
Sub Title (in English)
Keyword(1) Cognitive Radio
Keyword(2) Channel Occupancy Ratio
Keyword(3) Channel Transition Ratio
Keyword(4) Markov Model
1st Author's Name Hayato Soya
1st Author's Affiliation Nagano Prefectural Institute of Technology(Nagano Pref Inst)
2nd Author's Name Osamu Takyu
2nd Author's Affiliation Shinshu University(Shinshu Univ)
3rd Author's Name Keiichiro Shirai
3rd Author's Affiliation Shinshu University(Shinshu Univ)
4th Author's Name Takeo Fujii
4th Author's Affiliation The University of Electro-Communications(UEC)
5th Author's Name Mai Ohta
5th Author's Affiliation Fukuoka University(Fukuoka Univ)
6th Author's Name Humihito Sasamori
6th Author's Affiliation Shinshu University(Shinshu Univ)
7th Author's Name Shirou Handa
7th Author's Affiliation Shinshu University(Shinshu Univ)
Date 2017-01-19
Paper # SR2016-80
Volume (vol) vol.116
Number (no) SR-409
Page pp.pp.11-16(SR),
#Pages 6
Date of Issue 2017-01-12 (SR)