| Presentation | 2006-10-19 System-level Evaluations on User Throughput Using MIMO Multiplexing in HSDPA Hidekazu Taoka, Hiroyuki Atarashi, Kenichi Higuchi, Mamoru Sawahashi, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper investigates the effect of multiple-input multiple-output (MIMO) multiplexing employing the Per Antenna Rate Control (PARC) and Dual-stream Transmit Antenna Array (D-TxAA) schemes in High-Speed Downlink Packet Access (HSDPA) based on the system-level simulations assuming urban microcell spatial channel model. Simulation results show that assuming ideal conditions such as un-quantized antenna weights and no feedback information error in D-TxAA, D-TxAA increases the user throughput by approximately 3-5% compared to PARC at the 50% in the cumulative distribution function (CDF) both with Linear Minimum Mean Square Error (LMMSE) and Successive Interference Canceller (SIC) receivers. The results also show that performance of D-TxAA depends on the number of feedback information bits and their decoding errors of antenna weight information, and that there is no distinct difference observed between the PARC and D-TxAA schemes either in terms of the user throughput or cell throughput employing LMMSE and SIC taking into account quantized antenna weights with 2-bit resolution and 4% decoding errors of feedback weight information bits for D-TxAA. Finally, we show that the user throughput gain employing the 2-by-2 PARC or D-TxAA scheme over a 1-by-2 LMMSE receiver at the 50% CDF is approximately 10% and 16% using the LMMSE and the SIC receiver, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | HSDPA / MIMO / PARC / D-TxAA / pre-coding |
| Paper # | RCS2006-141 |
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| Committee | RCS |
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| Conference Date | 2006/10/12(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | System-level Evaluations on User Throughput Using MIMO Multiplexing in HSDPA |
| Sub Title (in English) | |
| Keyword(1) | HSDPA |
| Keyword(2) | MIMO |
| Keyword(3) | PARC |
| Keyword(4) | D-TxAA |
| Keyword(5) | pre-coding |
| 1st Author's Name | Hidekazu Taoka |
| 1st Author's Affiliation | Radio Access Network Development Department, NTT DoCoMo, Inc.() |
| 2nd Author's Name | Hiroyuki Atarashi |
| 2nd Author's Affiliation | Radio Access Network Development Department, NTT DoCoMo, Inc. |
| 3rd Author's Name | Kenichi Higuchi |
| 3rd Author's Affiliation | Radio Access Network Development Department, NTT DoCoMo, Inc. |
| 4th Author's Name | Mamoru Sawahashi |
| 4th Author's Affiliation | Department of Electronics and Communication Engineering, Musashi Institute of Technology |
| Date | 2006-10-19 |
| Paper # | RCS2006-141 |
| Volume (vol) | vol.106 |
| Number (no) | 305 |
| Page | pp.pp.- |
| #Pages | 5 |
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