| Presentation | 2021-11-10 QoS-aware Low-complexity User Pairing Based on Compressed Sensing in Downlink NOMA(2) Tomofumi Makita, Osamu Muta, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Downlink non-orthogonal multiple access (NOMA) systems with successive interference cancellation requires an effective user paring strategy that assigns proper user-pair to the same resource block. The authors has proposed a quality-of-service (QoS)-aware low complexity compressed sensing (CS)-based user pairing and power allocation scheme for downlink non-orthogonal multiple access (NOMA) systems, where the tolerable interference threshold constraint is mathematically designed to achieve a given QoS requirement. Based on the fact that selecting a user-pair among all users is treated as a `sparse’ situation, joint user selection and power allocation problem is relaxed to $l_1$ norm optimization problem under a QoS constraint based on the tolerable interference threshold, which can be solved by general CS algorithm. In this paper, We propose an adaptive resource block (RB) selection algorithm for CS-based user pairing and power allocation: two-step opportunistic resource block assignment (TS-RA). Simulation results show that the proposed scheme with TS-RA is effective in improving user-rate compared with other reference schemes even when each RB is affected by independent fading while the QoS requirement is approximately satisfied as long as the required QoS value is feasible. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Non-orthogonal multiple access (NOMA) / user pairing / power allocation / compressed sensing |
| Paper # | RCS2021-155 |
| Date of Issue | 2021-11-03 (RCS) |
| Conference Information | |
| Committee | AP / RCS |
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| Conference Date | 2021/11/10(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NBC-Bekkan (Nagasaki) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Hiroshi Yamada(Niigata Univ.) / Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Mitoshi Fujimoto(Fukui Univ) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) |
| Secretary | Mitoshi Fujimoto(NTT DOCOMO) / Toshihiko Nishimura(National Defense Academy) / Tomoya Tandai(NEC) / Fumihide Kojima(Panasonic) |
| Assistant | Dr. Kim(Niigata Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / 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) | QoS-aware Low-complexity User Pairing Based on Compressed Sensing in Downlink NOMA(2) |
| Sub Title (in English) | |
| Keyword(1) | Non-orthogonal multiple access (NOMA) |
| Keyword(2) | user pairing |
| Keyword(3) | power allocation |
| Keyword(4) | compressed sensing |
| 1st Author's Name | Tomofumi Makita |
| 1st Author's Affiliation | Kyushu University(Kyushu Univ.) |
| 2nd Author's Name | Osamu Muta |
| 2nd Author's Affiliation | Kyushu University(Kyushu Univ.) |
| Date | 2021-11-10 |
| Paper # | RCS2021-155 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-234 |
| Page | pp.pp.63-68(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-11-03 (RCS) |