In this paper, we present a study of frame timing synchronization for WiMAX applications. The two synchronization algorithms analyzed are Schmidl and Cox technique and double sliding window packet detection. The accuracy and performance of both methods are quantified in terms of mean squared error between the exact and the estimated start of a frame. It is shown that double sliding window packet detection is more accurate and robust compared to Schmidl and Cox technique. ©2007 IEEE.