Far end crosstalk mitigation in multiple-input multiple-output (MIMO) channels using partial maximum likelihood MIMO-DFE

摘要

A partial maximum likelihood (ML) far end crosstalk (FEXT) decoder for a multiple-input multiple-output (MIMO) communications channel comprises an initial estimate generator module that generates initial decisions for X channels based on filtered outputs of received signals and feedback from prior decisions. A constellation point selector selects P constellation points for the X channels from a constellation including N points based on the initial decisions. A current estimate generator module evaluates each of the selected P constellation points for each of the X channels as feedback signals and generates final decisions based on selected ones of the constellation points for each of the X channels.