Patent ID: 7321646
Filing Date: 2008-01-22
Classification: H04L

Abstract:
1. A method of receiving a signal from a multiple-input-multiple-output (MIMO) communication channel having a plurality of input channels and a plurality of output channels, the method comprising the steps of: generating initial taps that represent an impulse response estimate of the MIMO communication channel; generating prefilter taps based on the initial taps: generating output channel taps based on the generated initial taps and the generated prefilter taps; pre-filtering the received signal using the generated prefilter taps to generate an output signal, the output signal comprising a signal component and a noise component, which filtered noise affecting the output channels are mutually independent; and selecting the prefilter taps generated from the generated initial taps by calculating a maximized ratio of signal energy to noise energy (SNR) in some of the output channel taps in relation to a weighted sum of ratios of signal energy in other of the output channel taps and energy of the noise component of the output signal.