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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Varma, A.R. Athaudage, C.R.N. Andrew, L.L.H. Manton, J.H. |
| Copyright Year | 2006 |
| Description | Author affiliation: ARC Special Res. Center for Ultra-Broadband Inf. Networks, Melbourne Univ., Vic. (Varma, A.R.; Athaudage, C.R.N.) |
| Abstract | This paper presents an optimal strategy for utilizing superimposed pilots for OFDM channel estimation using Wiener filtering. An algorithm is formulated to determine the optimal rectangular set of time-frequency samples for channel estimation for a given complexity. The proposed scheme shows an improved performance at high Doppler frequencies. Moreover, the separable implementation of the 2D Wiener filter leads to a significant reduction in complexity with negligible degradation in channel estimation performance. The sensitivity of the proposed technique to channel statistical mismatches is also analyzed. Numerical results demonstrate the superior performance of the proposed technique compared to conventional selection of square set of time-frequency samples for Wiener-filter based channel estimation |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 6379362 |
| Page Count | 5 |
| File Format | |
| ISBN | 078039710X |
| DOI | 10.1109/SPAWC.2006.346490 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-07-02 |
| Publisher Place | France |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Channel estimation Time frequency analysis Wiener filter Fading Frequency estimation Delay estimation OFDM modulation Time varying systems Computer science Interpolation |
| Content Type | Text |
| Resource Type | Article |
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