| Presentation | 2016-10-20 Performance of Circular QAM Constellations Using Partial Channel Coding with Parallel Double Gray Mapping Lianjun Deng, 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 parallel double Gray mapping scheme which is suitable for circular quadrature amplitude modulation (QAM) constellations using partial channel coding associated with collaborative decoding. By using the parallel double Gray mapping scheme, we compare the bit error rate (BER) performance of circular 1024QAM and 2048QAM schemes with rectangular 1024QAM and cross 2048QAM schemes, respectively. Computer simulation shows that the required received signal-to-noise power ratio (SNR) at the BER of 10-5 of the collaborative decoding is decreased by approximately 6.5 dB compared to that of the independent decoding for partial turbo coding employing the parallel double Gray mapping. We also show that circular 1024QAM exhibits higher robustness for time-varying phase noise compared to rectangular 1024QAM. We show however that rectangular 1024QAM provides the slightly better BER performance level compared to circular 1024QAM when using partial turbo coding employing the parallel double Gray mapping under additive white Gaussian noise (AWGN) channel with time-varying phase noise. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | QAM / Circular QAM / partial channel coding / double Gray mapping / phase noise / Rectangular QAM |
| Paper # | RCS2016-161 |
| Date of Issue | 2016-10-13 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2016/10/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP (Yokosuka) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. |
| Chair | Hidekazu Murata(Kyoto Univ.) |
| Vice Chair | Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) |
| Secretary | Satoshi Denno(Toshiba) / Yukitoshi Sanada(NTT DoCoMo) / Eisuke Fukuda |
| Assistant | Tetsuya Yamamoto(Panasonic) / Toshihiko Nishimura(Hokkaido Univ.) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) |
| 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) | Performance of Circular QAM Constellations Using Partial Channel Coding with Parallel Double Gray Mapping |
| Sub Title (in English) | |
| Keyword(1) | QAM |
| Keyword(2) | Circular QAM |
| Keyword(3) | partial channel coding |
| Keyword(4) | double Gray mapping |
| Keyword(5) | phase noise |
| Keyword(6) | Rectangular QAM |
| 1st Author's Name | Lianjun Deng |
| 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 | 2016-10-20 |
| Paper # | RCS2016-161 |
| Volume (vol) | vol.116 |
| Number (no) | RCS-257 |
| Page | pp.pp.47-52(RCS), |
| #Pages | 6 |
| Date of Issue | 2016-10-13 (RCS) |