| Presentation | 2008-07-17 PAPR Reduction Methods for Eigenmode MIMO-OFDM Systems Hiroto ADACHI, Satoshi SUYAMA, Hiroshi SUZUKI, Kazuhiko FUKAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report proposes methods that can reduce peak-to-average power ratio (PAPR) while maintaining performance improvement by linear precoding for eigenmode MIMO-OFDM mobile communications. In the eigenmode MIMO-OFDM system, a transmitter performs linear precoding using channel state information (CSI) and thus excellent transmission performance can be achieved. However, the transmitted signal still has high PAPR because of OFDM characteristics. To reduce such PAPR, this report enhances selected mapping (SLM) and partial transmit sequence (PTS) which are known as PAPR reduction methods for OFDM. The enhanced methods, which are referred to as eigenmode transmission SLM (EM-SLM) and eigenmode transmission PTS (EM-PTS), can be applied to the eigenmode MIMO-OFDM without any performance degradation. In addition, three methods to send optimal phase pattern information (OPPI) to the receiver are investigated for EM-SLM and EM-PTS. Computer simulations demonstrate that the proposed methods using 16 phase patterns can drastically reduce PAPR in 4×4 eigenmode MIMO-OFDM. Furthermore, performances of the OPPI transmission methods are compared, and packet error rates of both EM-SLM and EM-PTS with OPPI transmission are evaluated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile communication / MIMO-OFDM / Eigenmode / SLM / PTS |
| Paper # | RCS2008-33 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2008/7/10(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) | PAPR Reduction Methods for Eigenmode MIMO-OFDM Systems |
| Sub Title (in English) | |
| Keyword(1) | Mobile communication |
| Keyword(2) | MIMO-OFDM |
| Keyword(3) | Eigenmode |
| Keyword(4) | SLM |
| Keyword(5) | PTS |
| 1st Author's Name | Hiroto ADACHI |
| 1st Author's Affiliation | Tokyo Institute of Technology() |
| 2nd Author's Name | Satoshi SUYAMA |
| 2nd Author's Affiliation | Tokyo Institute of Technology |
| 3rd Author's Name | Hiroshi SUZUKI |
| 3rd Author's Affiliation | Tokyo Institute of Technology |
| 4th Author's Name | Kazuhiko FUKAWA |
| 4th Author's Affiliation | Tokyo Institute of Technology |
| Date | 2008-07-17 |
| Paper # | RCS2008-33 |
| Volume (vol) | vol.108 |
| Number (no) | 135 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |