| Presentation | 2018-01-22 Design Method of High-Order Circular QAM Constellation with Robustness for Phase Noise and Its BER Performance 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) | This paper proposes a design method for high-order circular QAM constellation which is robust for time-varying phase noise. We assume the application of partial Low-Density Parity-Check (LDPC) coding with double Gray mapping and collaborative LDPC decoding which are practical methods for high-rate LDPC code. In the proposed design method, we design the high-order circular QAM constellation based mainly on a variety of the minimum Euclidean distances between each signal point and the neighboring signal points. In this paper, we describe the proposed design method and proposed the circular 1024QAM constellation comprising 16 points x 2 rings + 32 points x 1 ring + 64 points x 15 rings. Computer simulation results show the validity of the proposed design method. We also show that the proposed circular 1024QAM constellation improves the required received signal-to-noise power ratio (SNR) at the bit error rate of 10-6 by approximately 0.2 ? 0.5 dB compared to rectangular 1024QAM in AWGN channel with time-varying phase noise. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | circular QAM / partial LDPC coding / double Gray mapping / minimum Euclidean distance / phase noise |
| Paper # | IT2017-64,SIP2017-72,RCS2017-278 |
| Date of Issue | 2018-01-15 (IT, SIP, RCS) |
| Conference Information | |
| Committee | SIP / IT / RCS |
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| Conference Date | 2018/1/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Sunport Hall Takamatsu |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masahiro Okuda(Univ. of Kitakyushu) / Masayoshi Ohashi(Fukuoka Univ.) / Hidekazu Murata(Kyoto Univ.) |
| Vice Chair | Shogo Muramatsu(Niigata Univ.) / Naoyuki Aikawa(TUS) / Jun Muramatsu(NTT) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) |
| Secretary | Shogo Muramatsu(Chiba Inst. of Tech.) / Naoyuki Aikawa(Takushoku Univ.) / Jun Muramatsu(Yokohama College of Commerce) / Yukitoshi Sanada(UEC) / Eisuke Fukuda(Toshiba) / Satoshi Suyama(Hokkaido Univ.) |
| Assistant | Masayoshi Nakamoto(Hiroshima Univ.ひろ) / Sigeaki Kuzuoka(wakayama univ.) / Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Signal Processing / Technical Committee on Information Theory / 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) | Design Method of High-Order Circular QAM Constellation with Robustness for Phase Noise and Its BER Performance |
| Sub Title (in English) | |
| Keyword(1) | circular QAM |
| Keyword(2) | partial LDPC coding |
| Keyword(3) | double Gray mapping |
| Keyword(4) | minimum Euclidean distance |
| Keyword(5) | phase noise |
| 1st Author's Name | Bin Zheng |
| 1st Author's Affiliation | Tokyo City University(Tokyo City Univ.) |
| 2nd Author's Name | Mamoru Sawahashi |
| 2nd Author's Affiliation | Tokyo City University(Tokyo City Univ.) |
| 3rd Author's Name | Norifumi Kamiya |
| 3rd Author's Affiliation | NEC(NEC) |
| Date | 2018-01-22 |
| Paper # | IT2017-64,SIP2017-72,RCS2017-278 |
| Volume (vol) | vol.117 |
| Number (no) | IT-394,SIP-395,RCS-396 |
| Page | pp.pp.55-60(IT), pp.55-60(SIP), pp.55-60(RCS), |
| #Pages | 6 |
| Date of Issue | 2018-01-15 (IT, SIP, RCS) |