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A low-complexity frame synchronization and frequency offset compensation scheme for OFDM systems over fading channels

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Fig. 1. OFDM system with synchronization scheme.
Fig. 2. Block diagram of a low-complexity ML estimator for frame synchronization [3].
Fig. 3. Probability of estimated frame position: (a) moving average scheme and shortened moving average (SMA) scheme, (b) moving average scheme and exponentially weighted moving average (EWMA) scheme with weighting factor w = 1 0 2 0M ; M = 4; 6; 8, and (c
Fig. 4. Error variance of low-complexity frame synchronizer with various frequency offsets under AWGN channel, SNR = 25 dB.
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