Presentation | 2003/1/10 Iterative Channel Estimation Scheme by Taking the Channel States of Sub-carriers into Account in Mobile OFDM System Atsushi MIZUKI, Chang-Jun AHN, Iwao SASASE, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | In this paper, we propose the iterative channel estimation scheme by taking the channel states ofsub-carriers into account in the mobile OFDM system. The proposed scheme separates good and bad sub-carriers by using the channel state information. When we consider, the sub-carrier of good channel conditions to estimate the channel characteristic, it is possible to reduce the iteration time for obtaining the accurate channel state information. Moreover, the proposed scheme uses the replica of the sub-carrier of good channel conditions and the weights that are calculated from the adjacent sub-carriers correlation for estimating the channel state information. Thus, our scheme can improve the system performance with averaging the channel state information of the sub-carrier of good channel conditions as well as it can reduce the effect of poor channel conditions. The performance is evaluated in term of error vector magnitude (EVM). Prom the simulation results, our proposed scheme achieves better EVM performance than the conventional iterative channel estimation scheme. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | OFDM / iterative channel estimation / channel state information / EVM |
Paper # | DSP2002-197,SAT2002-147,RCS2002-266 |
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Conference Information | |
Committee | SAT |
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Conference Date | 2003/1/10(1days) |
Place (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Satellite Telecommunications (SAT) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Iterative Channel Estimation Scheme by Taking the Channel States of Sub-carriers into Account in Mobile OFDM System |
Sub Title (in English) | |
Keyword(1) | OFDM |
Keyword(2) | iterative channel estimation |
Keyword(3) | channel state information |
Keyword(4) | EVM |
1st Author's Name | Atsushi MIZUKI |
1st Author's Affiliation | Department of Information and Computer Science, Keio University() |
2nd Author's Name | Chang-Jun AHN |
2nd Author's Affiliation | Department of Information and Computer Science, Keio University |
3rd Author's Name | Iwao SASASE |
3rd Author's Affiliation | Department of Information and Computer Science, Keio University |
Date | 2003/1/10 |
Paper # | DSP2002-197,SAT2002-147,RCS2002-266 |
Volume (vol) | vol.102 |
Number (no) | 548 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |