| Presentation | 2013-07-18 A study on Time domain Efficient Decision Fusion in Cooperative Spectrum Sensing(Poster Presentation) Kenta UMEBAYASHI, Janne J LEHTOMAKI, Yasuo SUZUKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Efficient decision fusion technique for cooperative spectrum sensing based on the logical OR-rule is considered for dynamic spectrum sharing between primary users (PUs) and secondary users (SUs). Due to the use of the OR-rule where local decision is "1" or "0" , the fusion center (FC) only needs to know if any of the local decisions was "1" . Thus, we investigated information gathering technique with only one time slot for multiple SUs. Multiple SU transmissions leads to a multiuser interference problem. For this issue, we propose power allocation technique to reduce the effects of the destructive interference. In this paper, we investigate the information gathering technique with two time slots. In the case where the number of time slots is less than the number of SU transmitters, destructive interference is still unavoidable. For this issue, we propose phase shift technique to mitigate the effect of destructive interference. Numerical results show that the proposed method outperform a comparative method where the phase is shifted based on uniform distribution. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cooperative spectrum sensing / OR-rule / non-orthogonal multiple access / non-coherent reception / decision fusion / Phase shift |
| Paper # | NS2013-61,RCS2013-112,SR2013-50,ASN2013-79 |
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| Conference Information | |
| Committee | SR |
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| Conference Date | 2013/7/10(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Software 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 Time domain Efficient Decision Fusion in Cooperative Spectrum Sensing(Poster Presentation) |
| Sub Title (in English) | |
| Keyword(1) | Cooperative spectrum sensing |
| Keyword(2) | OR-rule |
| Keyword(3) | non-orthogonal multiple access |
| Keyword(4) | non-coherent reception |
| Keyword(5) | decision fusion |
| Keyword(6) | Phase shift |
| 1st Author's Name | Kenta UMEBAYASHI |
| 1st Author's Affiliation | Tokyo University of Agriculture and Technology() |
| 2nd Author's Name | Janne J LEHTOMAKI |
| 2nd Author's Affiliation | Centre for Wireless Communications, University of Oulu |
| 3rd Author's Name | Yasuo SUZUKI |
| 3rd Author's Affiliation | Tokyo University of Agriculture and Technology |
| Date | 2013-07-18 |
| Paper # | NS2013-61,RCS2013-112,SR2013-50,ASN2013-79 |
| Volume (vol) | vol.113 |
| Number (no) | 131 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |