Blind Subspace-Based CFO Estimation via Polynomial Rooting for MC-CDMA Systems
C.-C. HUANG, Ann‐Chen Chang, Ing‐Jiunn Su · IEICE Transactions on Communications · 2007
In this letter, we present a blind carrier frequency offset (CFO) estimator by exploiting the subspace-based technique for multicarrier-code division multiple access (MC-CDMA) systems. Relative high accuracy and low-complexity to the CFO estimation can be achieved by rooting a polynomial. Simulation results are provided for illustrating the effectiveness of the proposed blind polynomial rooting estimator.