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Design of implementation-efficient channel estimation filter for wireless OFDM transmission
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ryu, Jae-Ho | - |
dc.contributor.author | Lee, Yong-Hwan | - |
dc.date.accessioned | 2009-08-25T03:11:46Z | - |
dc.date.available | 2009-08-25T03:11:46Z | - |
dc.date.issued | 2003-04-04 | - |
dc.identifier.citation | VTC 2003-Spring. The 57th IEEE Semiannual Vehicular Technology Conference, vol. 3, pp. 1590-1594, 2003 | en |
dc.identifier.uri | https://hdl.handle.net/10371/7681 | - |
dc.description.abstract | The detection performance of coherent OFDM receiver significantly depends on the accuracy of channel estimation. The accuracy of channel estimation can be improved by properly post-processing the channel estimate using a so called channel estimation filter (CEF). Linear minimum mean-squared error (MMSE) filter is optimum as the CEF, but it may not practical due to implementation complexity. We consider the use of a reduced-complexity CEF whose tap coefficient is real valued and symmetrically weighted (RSW). The optimum RSW CEF is analytically designed using the multi-path intensity profile and SNR of the channel. We also propose a method to adapt the coefficient of the RSW CEF to the channel condition. Numerical results show that the proposed RSW CEF can provide channel estimation performance comparable to that of a linear MMSE filter, while significantly reducing the computational complexity. In addition, the proposed RSW CEF can provide performance robust to unknown timing offset with a fractional dB loss compared to the optimum one. | en |
dc.language.iso | en | - |
dc.subject | OFDM | en |
dc.subject | channel estimation | en |
dc.title | Design of implementation-efficient channel estimation filter for wireless OFDM transmission | en |
dc.type | Conference Paper | en |
dc.contributor.AlternativeAuthor | 류재호 | - |
dc.contributor.AlternativeAuthor | 이용환 | - |
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