Abstract
An accurate estimation of symbol timing is significant for orthogonal frequency division multiplexing (OFDM) since the symbol timing inaccuracy will lead to phase offset (FO), inter-symbol interference (ISI) and inter-channel interference (ICI). In this letter, a metric function has been designed by taking advantage of the correlation properties of OFDM signals. Computer simulation results show that the scheme is superior because it gets a larger probability that fall into the ISI and ICI free region and has lower computational complexity compared with the conventional methods over frequency-selective channels, which can be used for factory automation (FA) in wireless control network (WCN).
