| Presentation | 2022-12-15 A Study on Outer Loop Link Adaptation in Massive MIMO with Multi-user Detection via Generalized Approximate Message Passing Takanobu Doi, Jun Shikida, Daichi Shirase, Kazushi Muraoka, Naoto Ishii, Takumi Takahashi, Shinsuke Ibi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With the ever-growing demand for uplink communications in beyond fifth generation mobile communications (beyond 5G), massive multi-user multi-input multi-output (MIMO) will continue to be the key technique to improve the uplink communication capacity. As a low-complexity and high-accurate multi-user detection (MUD) to achieve this, the iterative MUD algorithm via generalized approximate message passing (GAMP) has been investigated by link-level evaluation. In this report, we evaluate the system-level performance with GAMP-based MUD algorithm, which has not been clarified yet. In this evaluation, a scheduler of a base station (BS) selects spatially multiplexed user equipment (UE) devices and modulation and coding scheme (MCS) for each UE based on estimated signal to interference and noise power ratio (SINR) after MUD. However, since it is difficult to analytically compute the SINR after GAMP-based MUD due to the non-linear structure, we investigate to estimate the SINR by correcting the SINR computed based on the zero forcing (ZF) criterion using outer loop link adaptation (OLLA). In addition, considering the fact that performance difference between ZF and GAMP depends on the combination of multiplexed UEs, we propose an OLLA method using different offsets of OLLA for each combination. The system level simulation results show that GAMP has a good throughput performance and that the proposed OLLA method further improves the throughput. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Massive MIMO / Generalized Approximate Message Passing / Scheduling / Outer Loop Link Adaptation |
| Paper # | RCS2022-196 |
| Date of Issue | 2022-12-08 (RCS) |
| Conference Information | |
| Committee | RCS / NS |
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| Conference Date | 2022/12/15(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Institute of Technology, and Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Multi-hop/Relay/Cooperation, Disaster-resistant wireless network, Sensor/Mesh network, Ad-hoc network, D2D/M2M, Wireless network coding, Handover/AP switching/Connected cell control/Load balancing among base stations/Mobile network dynamic reconfiguration, QoS/QoE assurance, Wireless VoIP, IoT, Edge computing, etc. |
| Chair | Kenichi Higuchi(Tokyo Univ. of Science) / Tetsuya Oishi(NTT) |
| Vice Chair | Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Takumi Miyoshi(Shibaura Insti of Tech.) |
| Secretary | Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) / Takumi Miyoshi(NTT) |
| Assistant | Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Kotaro Mihara(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Network Systems |
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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 Outer Loop Link Adaptation in Massive MIMO with Multi-user Detection via Generalized Approximate Message Passing |
| Sub Title (in English) | |
| Keyword(1) | Massive MIMO |
| Keyword(2) | Generalized Approximate Message Passing |
| Keyword(3) | Scheduling |
| Keyword(4) | Outer Loop Link Adaptation |
| 1st Author's Name | Takanobu Doi |
| 1st Author's Affiliation | NEC Corporation(NEC) |
| 2nd Author's Name | Jun Shikida |
| 2nd Author's Affiliation | NEC Corporation(NEC) |
| 3rd Author's Name | Daichi Shirase |
| 3rd Author's Affiliation | NEC Corporation(NEC) |
| 4th Author's Name | Kazushi Muraoka |
| 4th Author's Affiliation | NEC Corporation(NEC) |
| 5th Author's Name | Naoto Ishii |
| 5th Author's Affiliation | NEC Corporation(NEC) |
| 6th Author's Name | Takumi Takahashi |
| 6th Author's Affiliation | Osaka University(Osaka Univ.) |
| 7th Author's Name | Shinsuke Ibi |
| 7th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| Date | 2022-12-15 |
| Paper # | RCS2022-196 |
| Volume (vol) | vol.122 |
| Number (no) | RCS-311 |
| Page | pp.pp.57-62(RCS), |
| #Pages | 6 |
| Date of Issue | 2022-12-08 (RCS) |