Data-aided timing offset estimation for frequency selective fading channels

In this paper, a novel algorithm for timing offset estimation is proposed for GSM and GPRS handsets, especially for multipath channels with large delay-spread. The timing offset leads to errors in the channel response estimation with a consequent increase in the overall bit error rate (BER). Thus, timing synchronization and tracking are crucial for satisfactory functioning of burst mode mobile communication receivers. In the proposed technique, minimum residual error energy concept is used for capturing multi-path delay profile and correlation based method is used for fine timing offset. Some simulation results are provided to illustrate the effectiveness of the proposed method.