A simple frequency and phase offset estimation for burst mode transmission

Conventional frequency offset estimation algorithms require high computational complexity and redundant memory. We propose a simple carrier synchronization algorithm which can jointly estimate the frequency and phase offset, and compare the performance of the proposed algorithm with that of other algorithms. The proposed algorithm requires no hardware memory. The computational complexity of the proposed algorithm is low. The principle of the proposed algorithm is based on frequency domain analysis and an interpolation technique. The proposed algorithm is asymptotically unbiased, according to the numerical derivation. Simulation results show that the estimation accuracy of the proposed algorithm is close to the CRB even when E_b/N_o is as low as 0 dB.