We study the design of linear precoders for maximization
of the mutual information in MIMO systems with
arbitrary constellations and with perfect channel state information
at the transmitter. We derive the structure of the optimum
precoder and we show that the mutual information is concave
in a quadratic function of the precoder coefficients. An iterative
algorithm is also proposed to find this optimum value.
CitationLamarca, M. Linear precoding for mutual information maximization in MIMO systems. A: 6th IEEE International Symposium on Wireless Communication Systems. "6th IEEE International Symposium on Wireless Communication Systems". Siena: 2010, p. 26-30.
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