Fast Calculation of Singular Values for MIMO Wireless Systems
نویسندگان
چکیده
The standard (point-wise) linear channel model for MIMO wireless systems provides a simplistic mapping from antenna elements to continuous (operator) view point of wireless channels. Low-rank, high-dimension sampling matrices generated by Ray-Tracing may be used to estimate (with error) the “true” operator channel. In order to achieve reasonable estimation error bounds, intractably large dimension matrices must be used for Ray Tracing. We consider an algorithm for estimating the singular values of the large dimensional matrix via application of Power Factorisation. We show there is no preferential basis choice for preconditioning and provide a simple algorithm for high-speed evaluation of the dominant singular values.
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