Novel blind carrier frequency offset estimation for OFDM system with multiple antennas

Authors:
Xiaofei Zhang;Xin Gao;Dazhuan Xu
Affiliations:
Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Venue:
IEEE Transactions on Wireless Communications
Year:
2010

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Abstract

In this paper, we address the problem of carrier frequency offset (CFO) estimation for Orthogonal Frequency Division Multiplexing (OFDM) systems with multiple antennas. The received signal can be denoted as a trilinear model, then the trilinear decomposition-based CFO estimation algorithm is proposed. Comparing to both ESPRIT method and the cyclostationarity (CS) approach, the algorithm that we presented has improved CFO estimation performance. Furthermore, our proposed algorithm can even work in condition of no virtual carrier. Simulation results illustrate performance of this algorithm.