Block structure of correlated matrices for OFDM system and its sychronization algorithm
Wang Liejun · Ha'erbin gongye daxue xuebao · 2009
According to the principle that the cyclic stationarity strengthened by carrier weighting can realize the blind synchronization in OFDM system,the block structure of correlated matrices of the system was analyzed with corresponding blind synchronization method.The method was conducted by detecting the block diagonal Toepltiz structure of correlated matrices.The method to determine the carrier weighting was provided by analyzing the restrained relations among carrier weights,symbol error rate(SER) and system synchronization performance with the given tradeoff between system SER and synchronization accuracy.Simulation results show that the block correlation matrices synchronization scheme can obtain better synchronization results than the scheme based on cyclic spectrum.