Abstract:

Based on the basis expansion algorithm,a complex exponential function is used to minimize the required data of channel estimation and obtain the other channel data response through the part of the channel that is calculated,thus reducing the number of actual measurement channels.The changes in model accuracy with different basic expansions and numbers of points in a transmission symbol block are studied and methods for achieving best performances are proposed.

Key words: basis expansion model;complex exponential basis vectors;AWGN