| 摘要 |
A computationally efficient channel estimation technique for use within an orthogonal frequency division multiplexing (OFDM) communication system determines interpolated equalization coefficients of a channel transfer function by calculating the dot products of a pilot vector and a plurality of interpolation vectors. The pilot vector is extracted from an OFDM symbol received from a communication channel. In a preferred approach, a number of interpolation vectors are precalculated and stored within a communication device for subsequent use during channel estimation and equalization operations. The technique is highly flexible and can be implemented using, for example, a variable user block size or a variable pilot vector size.
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