FPGA experiments show 7-bit fixed-point MIMO equalizer cuts noise floor 100x and angular error 63% but saturates communication performance with rising hardware complexity.
Kikuchi, ``Performance analyses of polarization demultiplexing based on constant-modulus algorithm in digital coherent optical receivers,'' Opt
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FPGA-Based Experimental Analysis of Fixed-Point Precision Impact on SOP Estimation in Coherent Communications Receivers
FPGA experiments show 7-bit fixed-point MIMO equalizer cuts noise floor 100x and angular error 63% but saturates communication performance with rising hardware complexity.