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Carrier frequency offset estimation using data-dependent superimposed training
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DOI：10.1109/LCOMM.2008.071822.png)
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Abstract
En 中文
In this letter we propose, for the first time, a solution to the problem of carrier frequency offset (CFO) estimation within the Data Dependent Superimposed Training (DDST) framework for channel estimation. While time division multiplexed (TDM) trained systems can use the TDM sequence to determine the CFO, the original attraction of DDST for channel estimation was that it avoided any TDM training. So in this letter we show how CFO estimation can still be very effectively performed with the DDST algorithm, while continuing to preclude the need for any additional bandwidth-consuming TDM training. Finally, simulations are presented that verify the theoretical results.
Keywords:
frequency estimation
superimposed training
frequency selective fading
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