| Presentation | 2019-08-22 A Study on a Performance Improvement by Cyclic Redundancy Check for Large-Scale SCMA Detection Renjie Li, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | SCMA attracts attention as a non-orthogonal multiple access method for device-to-device communi- cation. Generally, NOMA signal detection becomes difficult as the number of users increases, or the inter-user interference increases. SCMA is a kind of low density spreading, which can reduce inter-user interference to a certain extent, but interference cancellation is still required on the receiving side. In this paper, we use a Gaussian belief propagation (GaBP) method for signal detection in a large-scale SCMA system because the computation complexity of GaBP is proportional only to the square of the number of users. Furthermore, we add a CRC-aided stopping condition for GaBP iterative processing for each user, and evaluate the error rate performance of the frame and the average number of GaBP iteration. It has been found that good error rate performance can be obtained and the average number of iterations can be significantly reduced by using CRC. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Gaussian BP / SCMA / Massive access / NOMA / CRC |
| Paper # | RCS2019-147 |
| Date of Issue | 2019-08-15 (RCS) |
| Conference Information | |
| Committee | RCS / SAT |
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| Conference Date | 2019/8/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Satellite Communications, Broadcasting, Forward Error Correction, Wireless Communications, etc. |
| Chair | Tomoaki Otsuki(Keio Univ.) / Fumihiro Yamashita(NTT) |
| Vice Chair | Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Hisashi Sujikai(NHK) / Hiroyasu Ishikawa(Nihon Univ.) |
| Secretary | Satoshi Suyama(NTT) / Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura(NTT) / Hisashi Sujikai(NHK) / Hiroyasu Ishikawa |
| Assistant | Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Shinya Kumagai(Fujitsu) / Shinobu Nanba(KDDI Research) / Takuya Okura(NICT) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Satellite Telecommunications |
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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 a Performance Improvement by Cyclic Redundancy Check for Large-Scale SCMA Detection |
| Sub Title (in English) | |
| Keyword(1) | Gaussian BP |
| Keyword(2) | SCMA |
| Keyword(3) | Massive access |
| Keyword(4) | NOMA |
| Keyword(5) | CRC |
| 1st Author's Name | Renjie Li |
| 1st Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 2nd Author's Name | Toshihiko Nishimura |
| 2nd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 3rd Author's Name | Takeo Ohgane |
| 3rd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 4th Author's Name | Yasutaka Ogawa |
| 4th Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 5th Author's Name | Junichiro Hagiwara |
| 5th Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| Date | 2019-08-22 |
| Paper # | RCS2019-147 |
| Volume (vol) | vol.119 |
| Number (no) | RCS-176 |
| Page | pp.pp.7-12(RCS), |
| #Pages | 6 |
| Date of Issue | 2019-08-15 (RCS) |