Deep Learning in Physical Layer Communications
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It has been demonstrated that deep learning (DL) has the great potentials to break the bottleneck of communication systems. This article provides an overview of the recent advancements in DL-based physical layer communications. DL can improve the performance of each individual block in communication systems or optimize the whole transmitter/receiver. Therefore, we categorize the applications of DL in physical layer communications into systems with and without block processing structures. For DL-based communication systems with block structures, we demonstrate the power of DL in signal compression and signal detection. We also discuss the recent endeavors in developing end-to-end learning communication systems. Finally, the potential research directions are identified to boost the intelligent physical layer communications with DL.
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