An embodiment of the present invention provides an apparatus, comprising a
receiver capable of selecting optimal pilot locations and providing
feedback of the pilot locations to a transmitter in communication with
the receiver. The optimal pilot locations may be selected by locations
that avoid strong interference or platform noise at the receiver, by
locations that avoid deep fading, by locations that maximize the spacing
between pilot tones at the two ends of a wireless frequency band or by
locations that equalize the interspacing between any two adjacent pilots.