1. A method, comprising: receiving, at a detector for an iterative low-density parity-check coded multiple-input, multiple output orthogonal frequency division multiplex system, a multiple-input, multiple output orthogonal frequency division multiplex signal; generating a current a posteriori probability for the received signal based at least in part on a soft decisions based on a prior a posteriori probability and a soft channel estimate; and decoding the current a posteriori probability using a belief propagation algorithm in order to generate soft bit information.