Degrees of Freedom of the K User M x N MIMO Interference Channel

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Executive Summary

Interference management is an important problem in wireless system design. Researchers have been exploring the capacity characterization of the Gaussian interference channel from a information theoretic perspective for more than thirty years. Several inner-bounds and outer-bounds of the capacity region for the two user Gaussian interference channel with single antenna nodes are determined. However, the capacity region of the Gaussian interference channel remains an open problem in general. Interference channels with multiple-antenna nodes are studied.

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