| Presentation | 2002/2/28 Downlink Beamforming Method for SDMA Smart Antennas in Multipath Fading Environments : Transmission performance for the angular spread Yasushi Takatori, Keizo Cho, Toshikazu Hori, Hideki Mizuno, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Space Division Multiple Access (SDMA) is an attractive candidate for the increase of the channel capacity. In the SDMA system, signals from multiple terminals can be spatially separated and this feature enables the terminals to use the same frequency and the same timing. However, slight channel estimation error affects the transmission quality significantly in downlink. In this paper, we propose a new SDMA downlink beam-forming method, which employs transmission diversity for multi-beams and mitigates the influence of multipath fading. The effectiveness for angular spread and the Doppler frequency is evaluated in computer simulations and we will show that the proposed method achieves the 5dB higher SINR than that of the conventional one in flat fading environments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | smart antenna / SDMA / downlink beam-forming / STBC / multi-beam |
| Paper # | RCS2001-305 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2002/2/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| 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) | Downlink Beamforming Method for SDMA Smart Antennas in Multipath Fading Environments : Transmission performance for the angular spread |
| Sub Title (in English) | |
| Keyword(1) | smart antenna |
| Keyword(2) | SDMA |
| Keyword(3) | downlink beam-forming |
| Keyword(4) | STBC |
| Keyword(5) | multi-beam |
| 1st Author's Name | Yasushi Takatori |
| 1st Author's Affiliation | NTT Network Innovation Laboratories Nippon Telegraph and Telephone Corporation() |
| 2nd Author's Name | Keizo Cho |
| 2nd Author's Affiliation | NTT Network Innovation Laboratories Nippon Telegraph and Telephone Corporation |
| 3rd Author's Name | Toshikazu Hori |
| 3rd Author's Affiliation | NTT Network Innovation Laboratories Nippon Telegraph and Telephone Corporation |
| 4th Author's Name | Hideki Mizuno |
| 4th Author's Affiliation | NTT Network Innovation Laboratories Nippon Telegraph and Telephone Corporation |
| Date | 2002/2/28 |
| Paper # | RCS2001-305 |
| Volume (vol) | vol.101 |
| Number (no) | 683 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |