| Presentation | 2007-11-27 A study on soft decision based cooperative sensing in consideration of interference with primary users Hiromasa UCHIYAMA, Kenta UMEBAYASHI, Yukihiro KAMIYA, Yasuo SUZUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this report, we propose a soft decision based cooperative sensing in consideration of interference level at primary users in cognitive radio networks. Secondary users which can share the frequency with primary users by sensing a surrounding radio environment can communicate under no interference with primary users. For realizing the frequency sharing system, it is needed that secondary users should avoid interference with primary users. In other words, secondary users should decide whether they interfere with primary users or not correctly. Recently, Cooperative sensing (CS), where multiple secondary users cooperative each other to achieve higher detection performance, has been investigated. However, the exiting sensing metrics which has been investigated can not ensure the interference level with primary users because of deciding only whether the primary users exist around secondary users or not. Then, we replace the determination whether secondary users interference with primary users or not by the determination whether the signal from primary users is lower than the threshold or not. Through the computer simulation, we have shown that our proposal method can keep the outage probability at a steady value and soft decision based CS can achieve lower P_ |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cognitive radio / Cooperative sensing / Interference / Cooperative strategy / Secondary user |
| Paper # | SR2007-56 |
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| Conference Information | |
| Committee | SR |
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| Conference Date | 2007/11/19(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Software Radio(SR) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on soft decision based cooperative sensing in consideration of interference with primary users |
| Sub Title (in English) | |
| Keyword(1) | Cognitive radio |
| Keyword(2) | Cooperative sensing |
| Keyword(3) | Interference |
| Keyword(4) | Cooperative strategy |
| Keyword(5) | Secondary user |
| 1st Author's Name | Hiromasa UCHIYAMA |
| 1st Author's Affiliation | Tokyo University of Agriculture and Technology() |
| 2nd Author's Name | Kenta UMEBAYASHI |
| 2nd Author's Affiliation | Tokyo University of Agriculture and Technology |
| 3rd Author's Name | Yukihiro KAMIYA |
| 3rd Author's Affiliation | Tokyo University of Agriculture and Technology |
| 4th Author's Name | Yasuo SUZUKI |
| 4th Author's Affiliation | Tokyo University of Agriculture and Technology |
| Date | 2007-11-27 |
| Paper # | SR2007-56 |
| Volume (vol) | vol.107 |
| Number (no) | 352 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |