| Presentation | 2006-07-19 MIMO-OFDM Transmission Employing Subcarrier-Block Phase Hopping for PAPR Reduction Yusuke ISHIDA, Satoshi SUYAMA, Hiroshi SUZUKI, Kazuhiko FUKAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report proposes subcarrier-block phase hopping applied to the MIMO-OFDM transmission that employs the subcarrier phase hopping for space division multiplexing (SPH-SDM). The proposed method can reduce peak-to-average power ratio (PAPR) and improve BER performance by dividing the subcarriers into some blocks and rotating the phase of the complex time-domain signal which IFFT generates from the sucarriers of each block. As a conventional PAPR reduction method, the partial transmit sequence (PTS), which divides the subcarriers into some blocks and rotates the phase of the time-domain signal converted from the blocked subcarriers by IFFT, has been proposed. This report enhances PTS such that it can be applied to SPH-SDM, which derives the proposed method that can simultaneously achieve PAPR redution and improvement of BER performance. In additon, the method uses the phase rotation with the four phases (0, π/2, π, 3π/2), which is realized by reversing the sign and then can reduce the numerical complexity. Computer simulations compare the proposed method with a conventional one , the enhanced selected mapping (ESLM) which performs the subcarrier phase hopping for the modulation signal before IFFT, with respect to both PAPR performance and the numerical complexity. It is demonstrated that proposed method can achieve the almost same PAPR as that of ESLM with a half of the complexity of ESLM. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile communication / MIMO-OFDM / phase hopping / PAPR / phase pattern control |
| Paper # | RCS2006-66 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2006/7/12(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) | MIMO-OFDM Transmission Employing Subcarrier-Block Phase Hopping for PAPR Reduction |
| Sub Title (in English) | |
| Keyword(1) | Mobile communication |
| Keyword(2) | MIMO-OFDM |
| Keyword(3) | phase hopping |
| Keyword(4) | PAPR |
| Keyword(5) | phase pattern control |
| 1st Author's Name | Yusuke ISHIDA |
| 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 | 2006-07-19 |
| Paper # | RCS2006-66 |
| Volume (vol) | vol.106 |
| Number (no) | 168 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |