| Presentation | 2007-10-18 Pilot-assisted Channel Estimation for Orthogonal Multi-carrier DS-CDMA with Frequency-domain Equalization Tomoyuki SHIMA, Hiromichi TOMEBA, Fumiyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Orthogonal multi-carrier direct sequence code division multiple access (MC DS-CDMA) is a combination of time-domain spreading and orthogonal frequency division multiplexing (OFDM). In orthogonal MC DS-CDMA, the frequency diversity gain can be obtained by applying frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion to a block consisting of a number of OFDM symbols and can improve the bit error rate (BER) performance in a severe frequency-selective fading channel. FDE requires an accurate estimate of the channel transfer function. The channel gain can be estimated by removing the pilot modulation in the frequency domain using the time-multiplexed pilot. In this paper, we investigate pilot-assisted channel estimation for orthogonal MC DS-CDMA with FDE and evaluate the BER performance with pilot-assisted channel estimation in a frequency-selective Rayleigh fading channel by computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MC DS-CDMA / frequency-domain equalization / pilot-assisted channel estimation |
| Paper # | RCS2007-82 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2007/10/11(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) | Pilot-assisted Channel Estimation for Orthogonal Multi-carrier DS-CDMA with Frequency-domain Equalization |
| Sub Title (in English) | |
| Keyword(1) | MC DS-CDMA |
| Keyword(2) | frequency-domain equalization |
| Keyword(3) | pilot-assisted channel estimation |
| 1st Author's Name | Tomoyuki SHIMA |
| 1st Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Hiromichi TOMEBA |
| 2nd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Fumiyuki ADACHI |
| 3rd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| Date | 2007-10-18 |
| Paper # | RCS2007-82 |
| Volume (vol) | vol.107 |
| Number (no) | 262 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |