A joint maximum likelihood approach to frame synchronization in presence of frequency offset

Abstract

This paper proposes a new frame synchronizer that can achieve frame sync in presence of frequency offset. In particular, a maximum likelihood (ML) algorithm for joint frame synchronization, frequency and channel estimation is developed. Its derivation starts with the assumption of additive white Gaussian noise (AWGN) channels, but the results is extended to frequency selective channels. It is shown through computer simulation that the proposed scheme outperformed the existing schemes when frequency offset exists.