Working principle of LDSP in optical fiber communication. (IMAGE)
Caption
Working principle of LDSP in optical fiber communication. a, The experimental setup for a long-haul optical fiber transmission system, including the transmitter, channel, and receiver. b, The blocked data processing with LDSP. The received signals, sampling from the oscilloscope, is conducted block-by-block with the same LDSP structure. c, The LDSP structure, where the majority of the DSP modules remain the same, each DSP module is treated as a linear layer of a deep neural network, and its parameters are optimized using a learning algorithm through backpropagation, specifically the SGD method.
Credit
by Zekun Niu et al.
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CC BY