Abstract :
A definition of spatial multiplexing gain is provided. The advantages of this definition are twofold. The spatial multiplexing gain of a multiple-input multiple-output channel can be calculated without approximations for a given channel and the spatial multiplexing gain is a measure of the signal-to-noise ratio improvement compared to a diversity system. Furthermore, this definition provides insight in the dependencies of the spatial multiplexing gain on the channel conditioning and the signal-to-noise ratio.
