Forward Error Correction (FEC) is a technique used in optical communication systems to improve performance by enabling the receiver to correct errors without requiring retransmission of data. Its primary function is to reduce the bit error rate (BER), which is the percentage of bits received in error. FEC works by adding redundant data to the transmitted signal. This redundant data is used by the receiver to detect and correct errors that may have occurred during transmission due to noise, interference, or other impairments. The redundant data is ad....
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