| Presentation | 2010-12-17 Throughput Performance Evaluation of Two-Antenna Transmit Diversity Schemes Considering Channel Estimation Error in LTE-Advanced Uplink using SC-FDMA Yuichi Kakishima, Teruo Kawamura, Hidekazu Taoka, Takehiro Nakamura, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents the optimum two-antenna transmit diversity scheme for the uplink shared data channel from the viewpoint of the throughput performance in Long-Term Evolution (LTE)-Advanced using single carrier-frequency division multiple access (SC-FDMA). Since the structure for the user equipment (UE)-specific demodulation reference signal (DM-RS) used for channel estimation is different for each transmit diversity scheme, a comparison of throughput performance taking into account the impact of channel estimation error when the channel estimation is conducted using DM-RS is quite important. Based on link-level and the system-level simulation results, we clarify that closed loop (CL)-precoding achieves better throughput performance compared to the other open loop (OL) type transmit diversity schemes, i.e., cyclic delay diversity (CDD), precoding vector switching (PVS), and space-time block code (STBC), in low-to-high mobility environments in various deployment scenarios. We also show that the performance of STBC is degraded compared to the other transmit diversity schemes due to the severe impact of channel estimation error. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LTE-Advanced / SC-FDMA / transmit diversity / reference signal / channel estimation error |
| Paper # | RCS2010-180 |
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| Committee | RCS |
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| Conference Date | 2010/12/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Throughput Performance Evaluation of Two-Antenna Transmit Diversity Schemes Considering Channel Estimation Error in LTE-Advanced Uplink using SC-FDMA |
| Sub Title (in English) | |
| Keyword(1) | LTE-Advanced |
| Keyword(2) | SC-FDMA |
| Keyword(3) | transmit diversity |
| Keyword(4) | reference signal |
| Keyword(5) | channel estimation error |
| 1st Author's Name | Yuichi Kakishima |
| 1st Author's Affiliation | Radio Access Network Development Department, NTT DOCOMO, INC.() |
| 2nd Author's Name | Teruo Kawamura |
| 2nd Author's Affiliation | Radio Access Network Development Department, NTT DOCOMO, INC. |
| 3rd Author's Name | Hidekazu Taoka |
| 3rd Author's Affiliation | DOCOMO Communications Laboratories Europe, GmbH |
| 4th Author's Name | Takehiro Nakamura |
| 4th Author's Affiliation | Radio Access Network Development Department, NTT DOCOMO, INC. |
| Date | 2010-12-17 |
| Paper # | RCS2010-180 |
| Volume (vol) | vol.110 |
| Number (no) | 340 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |