Consistent Blind Synchronization of OFDM Transmissions Using Null Sub-Carriers with Distinct Spacings
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Optimized null-subcarrier selection for CFO estimation in OFDM over frequency-selective fading channels
We address the problem of frequency synchronization in OFDM-based communications systems in the context of frequency-selective fading channels. Frequency offsets are estimated by inserting null sub-carriers into a single OFDM block. The paper clarifies issues related to acquisition range and identifiability of carrier frequency offset (CFO), and performance of estimators. A deterministic maximu...
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