Training sequence design for joint channel and frequency offset estimation with partial channel state information

We consider signal-carrier and single-user transmission over a frequency-selective channel. We focus on the data-aided joint estimation of the dispersive channel and the frequency offset. We propose a new training sequence selection strategy relevant for both parameters of interest in the context of a Ricean fading channel. Our strategy relies on the minimization of the mean-square error on data symbols at the output of a Wiener equalizer after frequency offset compensation. Simulations based on bit error rate confirm our claim.