| Presentation | 2009-05-29 Evaluation and Performance Improvement of a Cooperative Sensing System With Losses of Information from Sensing Nodes Makoto TAKANASHI, Takaya YAMAZATO, Masaaki KATAYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | At a location and time, there may be frequencies not in use by their licensed (primary) users. Spectrum sharing, in which a secondary radio system uses such white spaces of frequency, is one of advantageous means to mitigate the spectrum scarcity. In order to realize the spectrum sharing, spectrum sensing that detects the presence of a primary user signal is a key technology. For reliable sensing of the primary signal, cooperative sensing where information from multiple sensing nodes is incorporated at a fusion center is currently being investigated by many researchers. Majority of these works consider the imperfectness of the channels between a primary transmitter and sensor nodes under noise and fading environments. On the contrary, this manuscript deals with the transmission between sensor nodes to a fusion center. For a cooperative spectrum sensing system, in which the analog outputs of energy detectors at sensor nodes are transmitted to a fusion center, the influence of losses of information from the nodes on detection performance is derived analytically. In addition, it is shown that the adaptive processing with the consideration of information loss at the fusion center improves system performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spectrum Sharing / Spectrum Sensing / Cooperative Sensing / Node Failure |
| Paper # | SR2009-12 |
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| Conference Information | |
| Committee | SR |
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| Conference Date | 2009/5/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| 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) | Evaluation and Performance Improvement of a Cooperative Sensing System With Losses of Information from Sensing Nodes |
| Sub Title (in English) | |
| Keyword(1) | Spectrum Sharing |
| Keyword(2) | Spectrum Sensing |
| Keyword(3) | Cooperative Sensing |
| Keyword(4) | Node Failure |
| 1st Author's Name | Makoto TAKANASHI |
| 1st Author's Affiliation | Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University() |
| 2nd Author's Name | Takaya YAMAZATO |
| 2nd Author's Affiliation | Eco Topia Science Institute, Nagoya University |
| 3rd Author's Name | Masaaki KATAYAMA |
| 3rd Author's Affiliation | Eco Topia Science Institute, Nagoya University |
| Date | 2009-05-29 |
| Paper # | SR2009-12 |
| Volume (vol) | vol.109 |
| Number (no) | 61 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |