| Presentation | 2012-03-09 Adaptive Modulation Assignment For Uplink Single Carrier Cooperative DF Relay Using Direct/Cooperative DF Relay Switching Kazuhiro KIMURA, Masayuki NAKADA, Tatsunori OBARA, Fumiyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The cooperative relay is a promising technique to increase the cell edge throughput. In our previous paper, we proposed an adaptive modulation assignment method for uplink single carrier (SC) 2-time slot cooperative decode-and-forward (DF) relay and showed that it can achieve the higher throughput than the fixed modulation combination method. However, the achievable throughput of 2-time slot cooperative relay is upper limited to half of the direct communication and thus, sometimes the throughput of the cooperative relay becomes lower than that of the direct communication. To avoid this, recently, we proposed a direct/cooperative relay switching transmission. In this paper, we apply the adaptive modulation method to direct/cooperative relay switching transmission. The transmission method and adaptive selection of modulation combinations are done so as to maximize the throughput. We evaluate, by computer simulation, the uplink throughput performance of SC 2-time slot direct/cooperative DF relay switching using the adaptive modulation assignment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cooperative DF relay / direct/cooperative relay switching / single carrier transmission / adaptive modulation assignment |
| Paper # | RCS2011-367 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2012/2/29(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| 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) | Adaptive Modulation Assignment For Uplink Single Carrier Cooperative DF Relay Using Direct/Cooperative DF Relay Switching |
| Sub Title (in English) | |
| Keyword(1) | Cooperative DF relay |
| Keyword(2) | direct/cooperative relay switching |
| Keyword(3) | single carrier transmission |
| Keyword(4) | adaptive modulation assignment |
| 1st Author's Name | Kazuhiro KIMURA |
| 1st Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Masayuki NAKADA |
| 2nd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Tatsunori OBARA |
| 3rd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| 4th Author's Name | Fumiyuki ADACHI |
| 4th Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| Date | 2012-03-09 |
| Paper # | RCS2011-367 |
| Volume (vol) | vol.111 |
| Number (no) | 451 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |