| Presentation | 2017-06-23 Study on Random codebook Design and its constraint for Massive SCMA Detection 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) | This paper proposes a random codebook design and its constraint for Gaussian belief propagation (GaBP) in massive Sparse Code Multiple Access (SCMA). In conventional SCMA, incoming bits are directly mapped to multi-dimensional codewords selected from a predefined optimal codebook, and a massage passing algorithm (MPA) is applicable as the detection scheme for multiuser detection. As the number of transmit streams increases, however, it is difficult to design optimal codebook due to a large number of its candidates, and the complexity of MPA exponentially increases. To solve these inconvenient problems, we employ the random codebook and GaBP iterative detection, which is lower complexity MPA algorithm. To improve the convergence property of GaBP iterative detection, we proposes a novel random codebook design and its constraint. Finally, we demonstrate the validity of our proposed method, in terms of improvement of bit error rate (BER) performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Massive Connections / SCMA / Soft Interference Cancellation / GaBP |
| Paper # | RCS2017-81 |
| Date of Issue | 2017-06-14 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2017/6/21(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ishigaki Shoukou Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
| Chair | Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) |
| Secretary | Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara |
| Assistant | Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) |
| 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) | Study on Random codebook Design and its constraint for Massive SCMA Detection |
| 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 | 2017-06-23 |
| Paper # | RCS2017-81 |
| Volume (vol) | vol.117 |
| Number (no) | RCS-103 |
| Page | pp.pp.185-190(RCS), |
| #Pages | 6 |
| Date of Issue | 2017-06-14 (RCS) |