Stabilized precoder with antenna diversity for wireless LANs

Multipath fading is a major obstacle to be overcome in achieving high data rates for wireless LANs. Powerful equalizers needed to combat multipath are costly in terms of processing power, training sequence overhead and training time. In time-division-duplex radio systems, precoding may be used to shift the equalization burden from the receiver to the transmitter, enabling significant reductions in complexity and transmission overhead. This article describes a stabilized precoder with switched antenna diversity which achieves simple and efficient precoding for wireless LANs.