| Presentation | 2014-10-30 Channel Assignment Method for Effective Entry of New Secondary Users in Cognitive Radio(Poster session) Takashi KOSUGI, Takeo FUJII, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, wireless communication is facing shortage of spectrum resource. However, spectrum resource is not utilized completely in time and space domain. In order to obtain better conditioned spectrum resource, spectrum sharing using cognitive radio technology has attracted attention. In the spectrum sharing, unlicensed users (secondary users: SUs) exploit white space (WS) which is unused band by licensed users (primary users: PUs). In the related work, the channel assignment method maximizing the SU communication quality while protecting the PU is proposed when multiple SUs exist. In this method, the distance between SUs using the same channel is maximized and mutual interference among SUs is minimized so as to maximize SU communication quality. Therefore, it may cause the spatial fragmentation of spectrum resource and new SUs are difficult to use the same channel. In this paper, a novel channel assignment method based on the perimeter to area ratio of WS is proposed. In the proposed method, WS is formed for easy entry of new SUs when the channels are assigned to new SUs. The central control server with SU information is prepared and it assigns a channel to new SUs successively. Through computer simulations, increment of the number of SUs with an assigned channel and effective utilization of WS by new SUs are shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cognitive Radio / Channel Assignment / Spectrum Sharing |
| Paper # | SR2014-64 |
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| Committee | SR |
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| Conference Date | 2014/10/23(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| 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) | Channel Assignment Method for Effective Entry of New Secondary Users in Cognitive Radio(Poster session) |
| Sub Title (in English) | |
| Keyword(1) | Cognitive Radio |
| Keyword(2) | Channel Assignment |
| Keyword(3) | Spectrum Sharing |
| 1st Author's Name | Takashi KOSUGI |
| 1st Author's Affiliation | Advanced Wireless Communication research Center(AWCC), The University of Electro-Communications() |
| 2nd Author's Name | Takeo FUJII |
| 2nd Author's Affiliation | Advanced Wireless Communication research Center(AWCC), The University of Electro-Communications |
| Date | 2014-10-30 |
| Paper # | SR2014-64 |
| Volume (vol) | vol.114 |
| Number (no) | 284 |
| Page | pp.pp.- |
| #Pages | 2 |
| Date of Issue | |