| Presentation | 2017-08-18 [Encouragement Talk] Performance improvement of Set-Partitioning 64APSK coded modulation optimizing signal constellation points Yuki Koizumi, Yoichi Suzuki, Masaaki Kojima, Hisashi Sujikai, Shoji Tanaka, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We are engaged in researching set-partitioning multi-level coded modulation for the purpose of increasing the capacity of satellite transmission. We have previously designed a 64APSK coded modulation whose number of circles allocating constellation points was restricted to four and confirmed that it can achieve better transmission performance than the gray mapped 64QAM. In order to perform more efficient transmission with high channel capacity, the flexible constellation design without restricting not only the number of circumferences but also circumference arrangement is worth considering. In this report, we first discuss the design results when the number of circles is set as the design parameters. We then propose a design method that constellation points are not arranged circumferentially but at arbitrary coordinates in the IQ plane. We indicate that the proposed method can increase channel capacity compared to the previous design method with circumference arrangement. Finally, bit allocation and optimization of LDPC coding rate distribution are performed for the constellation designed with the proposed method , and the transmission performance under the AWGN is evaluated by computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 64APSK / Coded modulation, / Set-partitioning / Channel capacity / Constellation / LDPC code |
| Paper # | SAT2017-36 |
| Date of Issue | 2017-08-10 (SAT) |
| Conference Information | |
| Committee | RCS / SAT |
|---|---|
| Conference Date | 2017/8/17(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Niigata Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Satellite Communications, Broadcasting, Error Correction, Wireless Communication Systems, etc. |
| Chair | Hidekazu Murata(Kyoto Univ.) / Toshinori Susuki(Tohoku Gakuin Univ.) |
| Vice Chair | Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Hiroyuki Tsuji(NICT) / Fumihiro Yamashita(NTT) |
| Secretary | Yukitoshi Sanada(Toshiba) / Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(KDDI R&D Labs.) / Hiroyuki Tsuji(NICT) / Fumihiro Yamashita |
| Assistant | Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Satellite Telecommunications |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Encouragement Talk] Performance improvement of Set-Partitioning 64APSK coded modulation optimizing signal constellation points |
| Sub Title (in English) | |
| Keyword(1) | 64APSK |
| Keyword(2) | Coded modulation, |
| Keyword(3) | Set-partitioning |
| Keyword(4) | Channel capacity |
| Keyword(5) | Constellation |
| Keyword(6) | LDPC code |
| 1st Author's Name | Yuki Koizumi |
| 1st Author's Affiliation | NHK(NHK) |
| 2nd Author's Name | Yoichi Suzuki |
| 2nd Author's Affiliation | NHK(NHK) |
| 3rd Author's Name | Masaaki Kojima |
| 3rd Author's Affiliation | NHK(NHK) |
| 4th Author's Name | Hisashi Sujikai |
| 4th Author's Affiliation | NHK(NHK) |
| 5th Author's Name | Shoji Tanaka |
| 5th Author's Affiliation | NHK(NHK) |
| Date | 2017-08-18 |
| Paper # | SAT2017-36 |
| Volume (vol) | vol.117 |
| Number (no) | SAT-174 |
| Page | pp.pp.81-85(SAT), |
| #Pages | 5 |
| Date of Issue | 2017-08-10 (SAT) |