ML Estimation of Initial Symbol Timing and Frequency Offset in OFDM Systems

In this paper, we present a simple and efficient novel joint synchronization algorithm for OFDM system. It is based on training cyclic prefix to estimate the Initial symbol timing and carrier frequency offsets. Training sequence is an important part of the symbols which organize the frame timing and initial symbol timing. Cyclic prefix used the circular property for insertion and removal itself. Hence, advantages of both training sequence and cyclic prefix is being used in the algorithm. The simulation results show that the new algorithm improved the performance Keywords-OFDM; Frame Timing; Initial timing; frequency offset ; maximum likelihood(ML).