A Novel Coarse Time Synchronization Algorithm for MIMO-OFDM Systems

This paper proposes a coarse time synchronization method which reduces the influence of the inter symbol interference(ISI) for MIMO-OFDM systems. The proposed method extracts the timing which is not disturbed by delay spread within the guard interval (GI) by utilizing the cyclic prefix (CP). Thus, the proposed method is effective in reducing the influence of the ISI. Simulation results demonstrate that the proposed coarse time synchronization algorithm has a satisfactory performance even at a low SNR in rich multipath environment. And the synchronization performances in MIMO channel are super to those in SISO channel for its larger diversity gain.

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