A semi-blind channel estimation with superimposed pilot sequence for OFDM systems

Abstract

This paper aims to apply the superimposed pilot sequence technique to semi-blind channel estimation for OFDM systems. We propose two kinds of joint semi-blind channel estimation and data detection structure which are based on the Viterbi algorithm and the maximum a posteriori (MAP) algorithm, respectively. Further, two kind iterative structures of joint… (More)

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