DETERMINING CHANNEL INFORMATION USING DECISION FEEDBACK EQUALIZATION

In various embodiments, the present disclosure provides transmitters, receivers, and methods of determining channel state information for a maximum likelihood (ML) multiple input multiple output (MIMO) receiver, as well as transmitting and demodulating signals based on the determined channel state information. A ML MIMO receiver receives a first MIMO signal from a MIMO transmitter. Channel characteristics of the first MIMO signal are determined based on decision feedback equalization (DFE) processing. The DFE-determined channel characteristics, or information derived from the DFE-determined channel characteristics, are reported to the MIMO transmitter and the MIMO ML receiver decodes a second MIMO signal based on ML processing. The second MIMO signal is modulated and encoded by the MIMO transmitter according to a modulation and coding scheme in accordance with (1) the DFE-determined channel characteristics or (2) the information derived from the DFE-determined channel characteristics.