Synchronization-assisted adaptive MMSE channel estimation algorithm for MB OFDM UWB system

In this paper, an adaptive MMSE channel estimation method is proposed for UWB-OFDM system. As we known, the MMSE algorithm is dependent on the auto-correlation of the known signals and the cross-correlation between the known signals and the signals to be estimated. These parameters are difficult to obtain in practice, because it needs a long-term statistic at the cost of huge complexity and time delay. In this paper, a synchronization-assisted adaptive MMSE algorithm is proposed for OFDM UWB channel estimation.