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- W2912024022 abstract "We propose an iterative semi-blind (ISB) receiver structure to enable ultra-reliable low-latency communications in short-frame full-duplex (FD) systems with carrier frequency offset (CFO). To the best of our knowledge, this is the first paper to propose an integral solution to channel estimation and CFO estimation for short-frame FD systems by utilizing a single pilot. By deriving an equivalent system model with the CFO included implicitly, a subspace-based blind channel estimation is proposed at the initial stage, followed by CFO estimation and channel ambiguities elimination. Then, the refinement of channel and the CFO estimates is conducted iteratively. The integer and fractional parts of CFO in the full range are estimated as a whole and in closed-form at each iteration. The proposed ISB receiver significantly outperforms the previous methods in terms of frame error rate, mean square errors of channel estimation and CFO estimation and output signal-to-interference-and-noise ratio, while at a halved spectral overhead. Cramér-Rao lower bounds are derived to verify the effectiveness of the proposed ISB receiver structure. It also demonstrates high-computational efficiency as well as the fast convergence speed." @default.
- W2912024022 created "2019-02-21" @default.
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- W2912024022 date "2019-04-01" @default.
- W2912024022 modified "2023-09-30" @default.
- W2912024022 title "Fast Iterative Semi-Blind Receiver for URLLC in Short-Frame Full-Duplex Systems With CFO" @default.
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- W2912024022 doi "https://doi.org/10.1109/jsac.2019.2898746" @default.
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