| Presentation | 2019-03-06 A Study on Criterion of Adaptively Scaled Belief for GaBP in Massive SCMA Keisuke Inagaki, Takumi Takahashi, Shinsuke Ibi, Seiichi Sampei, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we apply Gaussian belief propagation (GaBP) to the multi-user detection (MUD) in massive sparse code multiple access (SCMA) and clarify that the detection capability is further improved by adaptively scaled belief (ASB). When optimizing SCMA for GaBP detection, the intensity of the odd and even elements of the belief propagating between GaBP iteration is biased. Surprisingly, the bias of the belief helps in suppressing modeling errors of the prior belief, and improves bit error rate (BER) performance. However, in severe overload condition, even with the above method, the detection capability of GaBP is significantly degraded due to the modeling error of the prior belief. Therefore, we consider applying adaptively scale belief (ASB) which is known to be capable of remarkably suppressing the error floor of BER performance while giving the bias to the belief in SCMA-GaBP. Finally, computer simulation results confirm the validity of our proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Massive Connections / SCMA / Soft Interference Cancellation / GaBP |
| Paper # | RCS2018-286 |
| Date of Issue | 2019-02-27 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2019/3/6(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Tomoaki Otsuki(Keio Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Tadao Nakagawa(Tottori Univ.) |
| Vice Chair | Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT Docomo) / Fumiaki Maehara(Waseda Univ.) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.) / Satoshi Denno(Okayama Univ.) / Makoto Hamaminato(Fujitsu labs.) |
| Secretary | Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara(NICT) / Masayuki Ariyoshi(ATR) / Suguru Kameda(Univ. of Electro-Comm.) / Satoshi Denno(Kyoto Univ.) / Makoto Hamaminato(Tokyo Inst. of Tech.) |
| Assistant | Kazushi Muraoka(NTT Docomo) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(Mie Univ.) / Koji Ohshima(Kozo Keikaku Engineering) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Hiromasa Yamauchi(Fujitsu labs.) / Hanako Noda(Anritsu) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Criterion of Adaptively Scaled Belief for GaBP in Massive SCMA |
| Sub Title (in English) | |
| Keyword(1) | Massive Connections |
| Keyword(2) | SCMA |
| Keyword(3) | Soft Interference Cancellation |
| Keyword(4) | GaBP |
| 1st Author's Name | Keisuke Inagaki |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Takumi Takahashi |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| 3rd Author's Name | Shinsuke Ibi |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| 4th Author's Name | Seiichi Sampei |
| 4th Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2019-03-06 |
| Paper # | RCS2018-286 |
| Volume (vol) | vol.118 |
| Number (no) | RCS-474 |
| Page | pp.pp.25-30(RCS), |
| #Pages | 6 |
| Date of Issue | 2019-02-27 (RCS) |