Power Control under Slow Fading for Spatial Multiplexing with MMSE Receiver

In this paper, we propose several power control schemes for MIMO systems using spatial multiplexing (SM) with a minimum mean square error (MMSE) receiver under slow fading, to improve the bit error rate (BER) performance, both for an individual link and within a cellular system. After comparing the performance of these proposed power control schemes, we find that a further scheme which effectively combines the two methods with the best performance will provide better results than employing them individually.