| Presentation | 2012-08-30 Indoor Experiments on Throughput for Closed-Loop 2-by-2 SU-MIMO considering Antenna Configurations in LTE-Advanced Uplink Shinpei Yasukawa, Teruo Kawamura, Yoshihisa Kishiyama, Hidekazu Taoka, Hidehiro Andoh, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper clarifies the influence of the antenna configuration on the achievable throughput in a real indoor propagation environment for 2-by-2 single-user (SU)-MIMO and carrier aggregation with 2 component carriers (40-MHz bandwidth) in the LTE-Advanced uplink. For four antenna configurations, the achievable throughput performances with adaptive modulation and coding (AMC) and hybrid automatic repeat request (HARQ) are evaluated under the line-of-sight (LOS) and non-LOS (NLOS) conditions using the implemented LTE-Advanced transceiver. Experimental results show that under the LOS conditions, Rank 2 MIMO spatial multiplexing is invaluable in improving the achievable throughput because the mobile station transmission power is not severely limited in an indoor environment. The results also show that when a cross-polarized antenna configuration is employed, the location probability for achieving throughput greater than 200 Mbps is approximately 95%. Moreover, based on the results, we confirm that under the NLOS conditions, Rank 1 closed-loop transmit diversity with precoding is effective in enhancing the coverage in an indoor environment. Furthermore, we clarify that high throughput performance is obtained irrespective of the antenna separation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LTE-Advanced / Single carrier / SU-MIMO / Antenna configuration / Indoor experiment |
| Paper # | RCS2012-99 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2012/8/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Indoor Experiments on Throughput for Closed-Loop 2-by-2 SU-MIMO considering Antenna Configurations in LTE-Advanced Uplink |
| Sub Title (in English) | |
| Keyword(1) | LTE-Advanced |
| Keyword(2) | Single carrier |
| Keyword(3) | SU-MIMO |
| Keyword(4) | Antenna configuration |
| Keyword(5) | Indoor experiment |
| 1st Author's Name | Shinpei Yasukawa |
| 1st Author's Affiliation | () |
| 2nd Author's Name | Teruo Kawamura |
| 2nd Author's Affiliation | Radio Access Network Development Department, NTT DOCOMO, INC. |
| 3rd Author's Name | Yoshihisa Kishiyama |
| 3rd Author's Affiliation | Radio Access Network Development Department, NTT DOCOMO, INC. |
| 4th Author's Name | Hidekazu Taoka |
| 4th Author's Affiliation | DOCOMO Communications Laboratories Europe |
| 5th Author's Name | Hidehiro Andoh |
| 5th Author's Affiliation | Radio Access Network Development Department, NTT DOCOMO, INC. |
| Date | 2012-08-30 |
| Paper # | RCS2012-99 |
| Volume (vol) | vol.112 |
| Number (no) | 192 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |