Generalized Belief Propagation Receiver for Near-Optimal Detection of Two-Dimensional Channels with Memory

We propose a generalized belief propaga- tion (GBP) receiver for two-dimensional (2-D) chan- nels with memory, which is applicative to 2-D inter- symbol interference (ISI) equalization and multi-user detection (MUD). Our experimental study demon- strates that under non-trivial interference conditions, the performance of this fully tractable GBP receiver is almost identical to the performance of the optimal maximum a-posteriori (MAP) receiver.