| Presentation | 2014-10-30 A Study on Undesired Spectrum Detection Method with FFT(Poster session) Ryota HIGASHI, Mai OHTA, Osamu TAKYU, Takeo FUJII, Makoto TAROMARU, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The cognitive radio (CR) system utilizes a vacant spectrum (white space) in the coexistence environment with the existing primary system. We assume the cognitive node detects the white space by using an energy detection with fast Fourier transform (FFT) over wideband spectrum. In this paper, the CR system uses the aggregated carriers, performing the energy detection at each FFT bin. However, in this case, the CR node cannot distinguish the desired signal, which is transmitted within its own network, because the undesired primary signal is included in the received spectrum at the CR node. Then we consider the energy detection method for easily distinguishing the undesired spectrum from the received spectrum by using the wideband FFT according to the characteristics of the undesired signal. The CR receiver can erase the undesired signal from the results of the energy detection of each FFT bin by distinguishing it. Here, we assume that the undesired signal is Bluetooth signal and the desired signal is a narrowband signal. In this paper, we evaluate the detection performance by using the computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cognitive Radio / Spectrum Sensing / Energy detection / Fast Fourier Transform |
| Paper # | SR2014-65 |
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| Committee | SR |
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| Conference Date | 2014/10/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Smart Radio(SR) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Undesired Spectrum Detection Method with FFT(Poster session) |
| Sub Title (in English) | |
| Keyword(1) | Cognitive Radio |
| Keyword(2) | Spectrum Sensing |
| Keyword(3) | Energy detection |
| Keyword(4) | Fast Fourier Transform |
| 1st Author's Name | Ryota HIGASHI |
| 1st Author's Affiliation | Dept. of Electronics Engineering and Computer Science, School of Electronics and Computer Science, Fukuoka University() |
| 2nd Author's Name | Mai OHTA |
| 2nd Author's Affiliation | Dept. of Electronics Engineering and Computer Science, School of Electronics and Computer Science, Fukuoka University |
| 3rd Author's Name | Osamu TAKYU |
| 3rd Author's Affiliation | Dept. of Electrical and Electronic Engineering, Faculty of Engineering, Shinshu University |
| 4th Author's Name | Takeo FUJII |
| 4th Author's Affiliation | Advanced Wireless Communication Research Center, The University of Electro-Communications |
| 5th Author's Name | Makoto TAROMARU |
| 5th Author's Affiliation | Dept. of Electronics Engineering and Computer Science, School of Electronics and Computer Science, Fukuoka University |
| Date | 2014-10-30 |
| Paper # | SR2014-65 |
| Volume (vol) | vol.114 |
| Number (no) | 284 |
| Page | pp.pp.- |
| #Pages | 2 |
| Date of Issue | |