The performance evaluation of stop-and-go dual-mode algorithm for blind equalization

In this paper, a new stop-and-go dual-mode blind algorithm for QAM signal set is proposed and its performance evaluated. The concept of this algorithm is based on the dual-mode algorithm, the Godard algorithm and the stop-and-go algorithm. Because the proposed algorithm is based on the Godard algorithm, the operation of this algorithm is independent of the carrier offset and thus can be used even when the carrier offset is unknown. In order to evaluate the performance of this algorithm, computer simulations are performed for the 32-QAM signal constellations. From the simulation results, we can verify that proposed algorithm converges very fast compare to conventional dual-mode algorithm.