Patent ID: 7260153

Claim:
A method for evaluating a channel of a multiple-input multiple-output (MIMO) wireless communication system, wherein said communication system comprises at least two communication devices having a plurality of radiating elements for the parallel transmission of data sub-streams, comprising: defining a channel matrix metric, said channel matrix metric comprising a respective predefined function of channel matrix singular values for each of said data sub-streams, such that each of said predefined functions provides a measure of cross-talk signal to noise ratio (SNR) for said respective sub-stream; obtaining an estimated channel matrix; performing a singular value decomposition (SVD) of said estimated channel matrix to obtain estimated channel singular values, said singular value decomposition comprising a left-hand unitary weighting matrix, a diagonal matrix of said estimated channel singular values, and a right-hand unitary weighting matrix; and calculating a respective crosstalk measure for each of said sub-streams from said channel matrix metric and said estimated channel singular values.