| Presentation | 2004-10-29 Analysis of Performance Degradation due to Channel Estimation Error in Pre-rake TDD/CDMA HARUM Norharyati BINTI, Yuh TAMURA, Sigit P.W. JAROT, Riaz ESMAILZADEH, Masao NAKAGAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, pre-rake combining technique has become a hot topic of research as it decreases the complexity of the portable mobile unit, while achieving the same multipath diversity effect of the Rake receiver. The technique is based on preceding of the transmitted signal relying on knowledge of the channel estimation response before transmission. This a priori channel state information is available in Time Division Duplexing (TDD) systems, since the same channel is used both in up and downlink. In practice, the error in channel estimation in Pre-Rake system occurs due to time variability in mobile radio channel. Most previous works on Pre-rake in TDD CDMA have not taken into consideration the effect of imperfect channel estimation. In this paper, we present pre-rake performance under imperfect channel estimation due to time variability in TDD system, depending on Doppler Frequency and compare it with the ideal pre-rake system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | rake receiver / pre-rake / channel estimation / TDD-CDMA |
| Paper # | CS2004-90 |
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| Conference Information | |
| Committee | CS |
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| Conference Date | 2004/10/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Communication Systems (CS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of Performance Degradation due to Channel Estimation Error in Pre-rake TDD/CDMA |
| Sub Title (in English) | |
| Keyword(1) | rake receiver |
| Keyword(2) | pre-rake |
| Keyword(3) | channel estimation |
| Keyword(4) | TDD-CDMA |
| 1st Author's Name | HARUM Norharyati BINTI |
| 1st Author's Affiliation | Department of Information and Computer Science, Keio University() |
| 2nd Author's Name | Yuh TAMURA |
| 2nd Author's Affiliation | Department of Information and Computer Science, Keio University |
| 3rd Author's Name | Sigit P.W. JAROT |
| 3rd Author's Affiliation | Nokia Japan Co., Ltd |
| 4th Author's Name | Riaz ESMAILZADEH |
| 4th Author's Affiliation | Department of Information and Computer Science, Keio University |
| 5th Author's Name | Masao NAKAGAWA |
| 5th Author's Affiliation | Department of Information and Computer Science, Keio University |
| Date | 2004-10-29 |
| Paper # | CS2004-90 |
| Volume (vol) | vol.104 |
| Number (no) | 381 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |