On the Capacity of a Binary MIMO Channel with Random Interference
نویسندگان
چکیده
We study the capacity of a binary multiple input multiple output (MIMO) channel with interference. Interference is modelled as a non-linear relation between the input and the output words of the system. Namely, we assume that the fading coefficients in the channel matrix are binary and drawn with i.i.d. Bernoulli probabilities, and any element of the output word is given by the minimum value (the AND function) of the input elements connected to that output. We find the expected number of output codewords for a given dimension of the MIMO system and interference level. Using this result and Jensen’s inequality, we derive an upper bound on the capacity of this system. We show by numerical simulations that the capacity upper bound is tight for most of the interference levels.
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