| Presentation | 2000/5/18 Transmission Performance of Beam and Null Simultaneous Steering S/T-Equalizer Nobuhiko MIKI, Takahiro ASAI, Shigeru TOMISATO, Tadashi MATSUMOTO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In broadband mobile communications, Co-Channel Interference(CCI), Inter-Symbol Interference(ISI), and relatively large propagation loss have to be overcome. Joint Space-Time-Equalization(S/T-Equalization) is considered most effective in solving these problems. This paper proposes a new S/T-Equalization technique that performs separated S/T-signal processing with acceptable levels of complexity. The algorithm used in an Adaptive Array Antenna combines the beam and null steering concepts; a sharp beam is steered towards the desired signal while nulls are steered towards interferers. For temporal equalization, a conventional DDFSE-type equalizer is used. The proposed S/T-Equalizer was prototyped, and field tests were conducted in the 5GHz frequency band. The results confirm that the proposed S/T-Equalizer can reduce ISI effects while maintaining reasonable signal strength, thereby improving BER performance. This paper outlines the field tests and its results. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Broadband Mobile Communication / Multipath Fading / Adaptive Array Antenna / Adaptive Equalizer |
| Paper # | CS2000-2,RCS2000-13 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2000/5/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | Transmission Performance of Beam and Null Simultaneous Steering S/T-Equalizer |
| Sub Title (in English) | |
| Keyword(1) | Broadband Mobile Communication |
| Keyword(2) | Multipath Fading |
| Keyword(3) | Adaptive Array Antenna |
| Keyword(4) | Adaptive Equalizer |
| 1st Author's Name | Nobuhiko MIKI |
| 1st Author's Affiliation | NTT DoCoMo Inc.() |
| 2nd Author's Name | Takahiro ASAI |
| 2nd Author's Affiliation | NTT DoCoMo Inc. |
| 3rd Author's Name | Shigeru TOMISATO |
| 3rd Author's Affiliation | NTT DoCoMo Inc. |
| 4th Author's Name | Tadashi MATSUMOTO |
| 4th Author's Affiliation | NTT DoCoMo Inc. |
| Date | 2000/5/18 |
| Paper # | CS2000-2,RCS2000-13 |
| Volume (vol) | vol.100 |
| Number (no) | 82 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |