| Presentation | 2008-11-21 Blind Type Adaptive Reduced-Rank Filter Based on Signal Subspace for DS/CDMA Systems with Antenna Array Tomokazu TAKAHASHI, Tsuyoshi ICHIKAWA, Kohei OTAKE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In DS/CDMA communication systems, to improve the transmission efficiency, a blind or non-pilot-aided adaptive MMSE receiver based on the signal subspace has been proposed. The blind type receiver, however, has a problem of a severe deterioration of the BER characteristics due to low channel estimation accuracy, compared with the pilot-aided type. In order to combat this problem, we propose a blind type adaptive reduced-rank MMSE filter based on the gradient method. In this paper, we also conduct comparative simulations between our filter and the popular conjugate gradient reduced-rank filter (CGRRF) which is based on the conjugate gradient method (CG method), and the effectiveness of the proposed filter is shown in terms of BER characteristics. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DS/CDMA / signal subspace / blind / reduced-rank / conjugate gradient method |
| Paper # | RCS2008-147 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2008/11/12(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) | Blind Type Adaptive Reduced-Rank Filter Based on Signal Subspace for DS/CDMA Systems with Antenna Array |
| Sub Title (in English) | |
| Keyword(1) | DS/CDMA |
| Keyword(2) | signal subspace |
| Keyword(3) | blind |
| Keyword(4) | reduced-rank |
| Keyword(5) | conjugate gradient method |
| 1st Author's Name | Tomokazu TAKAHASHI |
| 1st Author's Affiliation | Faculty of Engineering, Hosei University() |
| 2nd Author's Name | Tsuyoshi ICHIKAWA |
| 2nd Author's Affiliation | Faculty of Engineering, Hosei University |
| 3rd Author's Name | Kohei OTAKE |
| 3rd Author's Affiliation | Faculty of Engineering, Hosei University |
| Date | 2008-11-21 |
| Paper # | RCS2008-147 |
| Volume (vol) | vol.108 |
| Number (no) | 305 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |