Abstract | ||
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We consider the pilot symbols for orthogonal frequency-division multiplexing (OFDM) over doubly selective channels. Locations, powers, and phases of pilot symbols play important roles in the channel estimation. We attempt to minimize the mean-square error (MSE) by selecting powers and phases of pilot symbols. In this paper, based on the MSE-optimal pilot symbols for time-selective and frequency-flat channels, we obtain the pilot symbols for doubly-selective channels. Through simulations, we show the channel estimation performance with the proposed pilot symbols compared to those with the equi-powered pilot symbols and the optimal pilot symbols. |
Year | DOI | Venue |
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2011 | 10.1109/LCOMM.2011.100511.111594 | IEEE Communications Letters |
Keywords | Field | DocType |
OFDM,Channel estimation,Eigenvalues and eigenfunctions,Wireless communication,Time frequency analysis,Bit error rate | Telecommunications,Wireless,Computer science,Communication channel,Electronic engineering,Real-time computing,Time–frequency analysis,Multiplexing,Orthogonal frequency-division multiplexing,Bit error rate | Journal |
Volume | Issue | ISSN |
15 | 12 | 1089-7798 |
Citations | PageRank | References |
2 | 0.39 | 9 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Jun-Han Oh | 1 | 13 | 2.52 |
Jin-Goog Kim | 2 | 16 | 2.56 |
Jong-Tae Lim | 3 | 473 | 60.54 |