Prefiltered blind equalization: how to fully benefit from spatio-temporal diversity?
نویسندگان
چکیده
We propose a new structure for blind equalization with spatiotemporal diversity at the receiver (SIMO system). This structure is derived from the Wiener filter. It is composed by a prefilter deduced from the data spectral density (no blind criterion is needed) and a FIR filter, independent from the noise level, to be obtained blindly. The new prefilter is robust to a total lack of effective diversity and benefits from any available diversity. Simulations show that this new blind equalizer performs similarly to the Wiener filter even with a very small amount of data.
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