Synchronization for MIMO OFDM systems
نویسندگان
چکیده
AbstractThis paper proposes a time and frequency synchronization technique for a transmit and receive ( ), MIMO OFDM system. The synchronization is achieved using training symbols which are simultaneously transmitted from transmit antennas. The training symbols are directly modulatable orthogonal polyphase sequences. The synchronization algorithm shows satisfactory performance even at a low SNR and in a frequency selective channel. The training sequence structure is specialized such that channel parameters in terms of channel coefficients and noise variance can be estimated once synchronization is achieved.
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