| Presentation | 2005-08-26 Frequency-domain adaptive ICI cancellation for DS-CDMA signal transmission Kazuaki TAKEDA, Fumiyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In direct sequence code division multiple access (DS-CDMA), frequency-domain equalization (FDE) based on minimum mean square error (MMSE) criterion can be applied to exploit the channel frequency-selectivity and therefore can replace the conventional rake combining with a much improved bit error rate (BER) performance. For a small spreading factor, however, the residual inter-chip interference (ICI) after MMSE-FDE can not be neglected and this limits the achievable BER performance improvement. In this paper, frequency-domain adaptive ICI cancellation using MMSE-FDE weight taking into account the residual ICI at each iteration stage is presented. The achievable BER performance using frequency-domain adaptive ICI cancellation is evaluated by computer simulation. To avoid the error propagation due to decision feedback, the soft interference replica is generated by using log-likelihood ratio (LLR). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DS-CDMA / frequency-domain equalization / residual inter-chip interference / frequency-domain adaptive ICI canceller |
| Paper # | RCS2005-78 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2005/8/18(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) | Frequency-domain adaptive ICI cancellation for DS-CDMA signal transmission |
| Sub Title (in English) | |
| Keyword(1) | DS-CDMA |
| Keyword(2) | frequency-domain equalization |
| Keyword(3) | residual inter-chip interference |
| Keyword(4) | frequency-domain adaptive ICI canceller |
| 1st Author's Name | Kazuaki TAKEDA |
| 1st Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Fumiyuki ADACHI |
| 2nd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| Date | 2005-08-26 |
| Paper # | RCS2005-78 |
| Volume (vol) | vol.105 |
| Number (no) | 240 |
| Page | pp.pp.- |
| #Pages | 6 |
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