Abstract
In this paper, we consider the power allocation problem for single-user multiple-input multiple-output (MIMO) systems. We propose new sub-optimal power allocation algorithms for MIMO systems with channel mean or covariance information at the transmitter, through the maximization of a lower bound of the ergodic channel capacity. Assume that the receiver has perfect channel knowledge. The algorithms proposed here need only the channel statistical information, and are very useful for systems in which only the channel statistical information is accessible to the transmitter. Simulation results confirm the performance.
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