| Presentation | 2015-06-26 Downlink NOMA Scheme with SIC Using Unified User Grouping for Non-orthogonal User Multiplexing and Decoding Order Keita Yakou, Kenichi Higuchi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we investigate practical methods for user grouping and setting of decoding order in a successive interference canceller (SIC) for downlink non-orthogonal multiple access (NOMA). While the optimal user grouping and decoding order depending on the instantaneous channel conditions among users within a cell is assumed in previous works, the proposed method uses user grouping and decoding order which is unified among all frequency blocks. The decoding order in SIC enables the application of NOMA with SIC to the system where all the elements within a codeword for a user are distributed among multiple frequency blocks (resource blocks) in frequency-selective fading channel. The unified user grouping alleviates the complexity in SIC process at the user terminal. The unified user grouping also achieves the reduction in complexity of the efficient downlink control signaling in NOMA with SIC. The unified user grouping and decoding order among frequency blocks in principle reduce the achievable throughput compared to the optimal one. However, from the numerical results, we show that the proposed method does not harm the system-level throughput significantly in downlink cellular network. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Downlink / Non-orthogonal multiple access / NOMA / SIC / User grouping / Decoding order |
| Paper # | RCS2015-85 |
| Date of Issue | 2015-06-17 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2015/6/24(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| 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 | Makoto Taromaru(Fukuoka Univ.) |
| Vice Chair | Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) |
| Secretary | Hidekazu Murata(Mitsubishi Electric) / Satoshi Denno(NTT DoCoMo) / Yukitoshi Sanada |
| Assistant | Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido 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) | Downlink NOMA Scheme with SIC Using Unified User Grouping for Non-orthogonal User Multiplexing and Decoding Order |
| Sub Title (in English) | |
| Keyword(1) | Downlink |
| Keyword(2) | Non-orthogonal multiple access |
| Keyword(3) | NOMA |
| Keyword(4) | SIC |
| Keyword(5) | User grouping |
| Keyword(6) | Decoding order |
| 1st Author's Name | Keita Yakou |
| 1st Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| 2nd Author's Name | Kenichi Higuchi |
| 2nd Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| Date | 2015-06-26 |
| Paper # | RCS2015-85 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-113 |
| Page | pp.pp.229-234(RCS), |
| #Pages | 6 |
| Date of Issue | 2015-06-17 (RCS) |