Abstract
This paper proposes a new blind channel estimation method based on expected value of the logarithmic received signal for OFDM (Orthogonal Frequency Division Multiplexing) systems. Blind channel estimation based on a subspace method is well studied during recent years in signal processing. However, these methods require the high computational complexity and many numbers of the stacking of the received signal. The proposed method brings out high accuracy with the low computational complexity by using first order statistics which is the expected value of the logarithmic received signal. The performance of the proposed method is shown by computer simulation.
