3 research outputs found
A Characterization of Maximum Entropy Spatially Correlated Wireless Channel Models
International audienceWe consider the use of entropy maximization methods as a tool to generate fading models for Multiple-Input Multiple-Output (MIMO) spatially correlated flat-fading channels. We focus in particular on various assumptions about the degree of knowledge on the full covariance matrix of the channel (namely in the power constraint, rank constraint, and average constraint case). We show that this method can provide closedform probability density functions in all cases. In a second part, we analyze the statistical properties of the singular values of the resulting fading channel. In general, they are more spread out that in the classical Gaussian i.i.d. case, which incurs less optimistic ergodic capacity figures
A characterization of maximum entropy spatially correlated wireless channel models
We consider the use of entropy maximization methods as a tool to
generate fading models for Multiple-Input Multiple-Output (MIMO)
spatially correlated flat-fading channels. We focus in particular on
various assumptions about the degree of knowledge on the full covariance
matrix of the channel (namely in the power constraint, rank constraint,
and average constraint case). We show that this method can provide
closed-form probability density functions in all cases. In a second
part, we analyze the statistical properties of the singular values of
the resulting fading channel. In general, they are more spread out that
in the classical Gaussian i.i.d. case, which incurs less optimistic
ergodic capacity figures