| Presentation | 2012-06-22 A Study on Autonomous Grouping Scheme for Selfish DSC in Asynchronous Transmit Timing Conditions Tastuki OKUYAMA, Shinsuke IBI, Seiichi SAMPEI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper investigates impacts of asynchronous transmission among users with the aid of selfish dynamic spectrum control (S-DSC). When S-DSC is employed for each user to share common frequency band, all users are capable of simultaneously transmitting by allowing partial band interference. However, when users' transmission timing is asynchronous, the interference is no longer partial and near-far problem is much more severe than synchronous case. To alleviate the critical problem, this paper proposes an autonomous subchannel grouping scheme, in which each user autonomously selects one of the subchannel in a system band to maximize its expected average capacity while considering mutual interference enhanced by the near-far problem. Thus, user links with moderate mutual interference are autonomously grouped. Computer simulations confirm a fact that the proposed scheme mitigates impacts of the aforementioned near-far problem. As the result, frame error rate (FER) performance of the proposed scheme overcomes that of the centralized control with the aid of orthogonal frequency division multiple access (OFDMA). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDMA / Dynamic Spectrum Control / Spectrum Sharing / Asynchronous Transmission |
| Paper # | RCS2012-66 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2012/6/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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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 Autonomous Grouping Scheme for Selfish DSC in Asynchronous Transmit Timing Conditions |
| Sub Title (in English) | |
| Keyword(1) | OFDMA |
| Keyword(2) | Dynamic Spectrum Control |
| Keyword(3) | Spectrum Sharing |
| Keyword(4) | Asynchronous Transmission |
| 1st Author's Name | Tastuki OKUYAMA |
| 1st Author's Affiliation | Graduate School of Engineering, Osaka University() |
| 2nd Author's Name | Shinsuke IBI |
| 2nd Author's Affiliation | Graduate School of Engineering, Osaka University |
| 3rd Author's Name | Seiichi SAMPEI |
| 3rd Author's Affiliation | Graduate School of Engineering, Osaka University |
| Date | 2012-06-22 |
| Paper # | RCS2012-66 |
| Volume (vol) | vol.112 |
| Number (no) | 89 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |