An Adaptive Frame-Based Interpolation Method of Channel Estimation for Space-Time Block Codes in Moderate Fading Channels

The application of Orthogonal Space-Time Block Codes (O-STBC) as the encoding scheme in the presence of “non-quasi-static” fading was considered. A simple and efficient adaptive method of channel estimation based on the interpolation of estimates acquired at the pre-amble and post-amble of framed blocks of information is developed. Moreover, the proposed method is proven, both theoretically and by simulations, to outperform the alternative of channel tracking, despite its significant low complexity. key words: O-STBC, channel estimation, interpolation, non-quasi-static fading, level-crossing ratio