| Presentation | 2020-03-04 Transmission Efficiency of Uplink Grant-Free Non-Orthogonal Multiple Access Takanori Hara, Koji Ishibashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To accommodate a large number of users efficiently, grant-free non-orthogonal multiple access (GF-NOMA) has gained much attention. One conventional scheme based on compressed sensing jointly performs active user detection (AUD), channel estimation (CE), and data detection via multiple measurement vector approximate message passing. An alternative approach is joint data and active user detection via coordinated descent method based on covariance estimation where multiple sequences are allocated to each user. However, the performance comparison between them has not been studied so far, and it is not clear which one is more efficient. In this paper, we discuss their performances and show their advantageous regions via computer simulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Grant-free non-orthogonal multiple access / compressed sensing / approximate message passing / covariance estimation / coordinate descent method |
| Paper # | RCS2019-325 |
| Date of Issue | 2020-02-26 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2020/3/4(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Tomoaki Otsuki(Keio Univ.) / Masayuki Ariyoshi(NEC) / Satoshi Denno(Okayama Univ.) |
| Vice Chair | Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Keiichi Mizutani(Kyoto Univ.) |
| Secretary | Satoshi Suyama(NTT) / Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura(ATR) / Suguru Kameda(Univ. of Electro-Comm.) / Osamu Takyu(Mie Univ.) / Kentaro Ishidu(Tokyo Inst. of Tech.) / Keiichi Mizutani(Anritsu) |
| Assistant | Kazushi Muraoka(NEC) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Kentaro Kobayashi(Nagoya Univ.) / Masaaki Fuse(Anritsu) / Tomoki Murakami(NTT) |
| 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) | Transmission Efficiency of Uplink Grant-Free Non-Orthogonal Multiple Access |
| Sub Title (in English) | |
| Keyword(1) | Grant-free non-orthogonal multiple access |
| Keyword(2) | compressed sensing |
| Keyword(3) | approximate message passing |
| Keyword(4) | covariance estimation |
| Keyword(5) | coordinate descent method |
| 1st Author's Name | Takanori Hara |
| 1st Author's Affiliation | The University of Electro-Communications(The Univ. of Electro-Communications) |
| 2nd Author's Name | Koji Ishibashi |
| 2nd Author's Affiliation | The University of Electro-Communications(The Univ. of Electro-Communications) |
| Date | 2020-03-04 |
| Paper # | RCS2019-325 |
| Volume (vol) | vol.119 |
| Number (no) | RCS-448 |
| Page | pp.pp.31-36(RCS), |
| #Pages | 6 |
| Date of Issue | 2020-02-26 (RCS) |