| Presentation | 2018-06-22 Blind Selected Mapping using 2-level Phase Rotation Set and 2-step Phase Rotation Sequence Estimation based on the Fourth-power Constellation Amnart Boonkajay, Fumiyuki Adachi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Blind selected mapping (blind SLM) is an effective peak-to-average power ratio (PAPR) reduction technique which does not require side information sharing. In the blind SLM, the receiver employs phase rotation sequence estimation, which can be carried out using maximum-likelihood (ML) estimation or 2-step sequence estimation using Viterbi algorithm. Recently, we showed that the use of codebook generated from a 2-level phase rotation set {0 degree, 135 degree} and the ML phase rotation sequence estimation based on the fourth-power QAM constellation requires much less complexity compared to the conventional blind SLM. However, when the number of phase rotation sequences is large, the computational complexity remains high. In this paper, we introduce a 2-level phase rotation set {0 degree, 135 degree} and the 2-step sequence estimation using Viterbi algorithm to a blind SLM. It is found that the use of 2-level phase rotation set significantly reduce the number of branches and states in the Viterbi algorithm and hence, leads to complexity reduction. Simulation results confirm that the blind SLM using the 2-level phase rotation set and the 2-step sequence estimation effectively lowers the PAPR and achieves similar BER to the ML sequence estimation with less computational complexity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Peak-to-average power ratio (PAPR)OFDMsingle carrier (SC)selected mapping (SLM) |
| Paper # | RCS2018-77 |
| Date of Issue | 2018-06-13 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2018/6/20(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagasaki University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
| Chair | Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) |
| Secretary | Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara |
| Assistant | Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Blind Selected Mapping using 2-level Phase Rotation Set and 2-step Phase Rotation Sequence Estimation based on the Fourth-power Constellation |
| Sub Title (in English) | |
| Keyword(1) | Peak-to-average power ratio (PAPR)OFDMsingle carrier (SC)selected mapping (SLM) |
| 1st Author's Name | Amnart Boonkajay |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 2nd Author's Name | Fumiyuki Adachi |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2018-06-22 |
| Paper # | RCS2018-77 |
| Volume (vol) | vol.118 |
| Number (no) | RCS-101 |
| Page | pp.pp.249-254(RCS), |
| #Pages | 6 |
| Date of Issue | 2018-06-13 (RCS) |