| Presentation | 2018-06-22 PAPR Performance of High-Order Circular QAM Constellation With Phase Noise Robustness Miyu Nakabayashi, Bin Zheng, Mamoru Sawahashi, Norifumi Kamiya, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We recently proposed high-order circular quadrature amplitude modulation (QAM) constellation using partial low-density parity-check (LDPC) code aiming at the application to wireless microwave backhaul. This paper presents peak-to-average power ratio (PAPR) performance of circular 1024QAM, 2048QAM, and 4096QAM constellations based on our proposed design method, and compare them with those rectangular 1024QAM, cross 2048QAM, and rectangular 4096QAM, respectively. We also present the corresponding bit error rate (BER) performance of these circular QAM constellations using partial LDPC coding with parallel double Gray mapping. Computer simulation results show that the circular QAM constellations achieve equal or lower PAPR compared to that of the corresponding rectangular or cross QAM constellation with the same frequency efficiency. Therefore, we conclude that high-order circular 2k QAM constellation (k is an integer) based on the proposed design method is more advantageous in decreasing the PAPR as well as achieving the better BER compared to the rectangular QAM constellation when using partial LDPC coding with double Gray mapping. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Circular QAM constellation / Partial LDPC coding / Double Gray mapping / PAPR / Phase noise |
| Paper # | RCS2018-68 |
| 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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | PAPR Performance of High-Order Circular QAM Constellation With Phase Noise Robustness |
| Sub Title (in English) | |
| Keyword(1) | Circular QAM constellation |
| Keyword(2) | Partial LDPC coding |
| Keyword(3) | Double Gray mapping |
| Keyword(4) | PAPR |
| Keyword(5) | Phase noise |
| 1st Author's Name | Miyu Nakabayashi |
| 1st Author's Affiliation | Tokyo City University(Tokyo City Univ.) |
| 2nd Author's Name | Bin Zheng |
| 2nd Author's Affiliation | Tokyo City University(Tokyo City Univ.) |
| 3rd Author's Name | Mamoru Sawahashi |
| 3rd Author's Affiliation | Tokyo City University(Tokyo City Univ.) |
| 4th Author's Name | Norifumi Kamiya |
| 4th Author's Affiliation | NEC Corporation(NEC) |
| Date | 2018-06-22 |
| Paper # | RCS2018-68 |
| Volume (vol) | vol.118 |
| Number (no) | RCS-101 |
| Page | pp.pp.195-200(RCS), |
| #Pages | 6 |
| Date of Issue | 2018-06-13 (RCS) |