MIMO Channel Matrix Condition Number Estimation and Threshold Selection for Combined K-Best Sphere Decoders

Sandra ROGER; Alberto GONZALEZ; Vicenc ALMENAR; Antonio M. VIDAL

doi:10.1587/transcom.E92.B.1380

Regular Section

MIMO Channel Matrix Condition Number Estimation and Threshold Selection for Combined K-Best Sphere Decoders

Sandra ROGER, Alberto GONZALEZ, Vicenc ALMENAR, Antonio M. VIDAL

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Keywords: MIMO detection, K-Best Sphere Decoder, matrix condition number estimation, threshold selection

JOURNAL RESTRICTED ACCESS

2009 Volume E92.B Issue 4 Pages 1380-1383

DOI https://doi.org/10.1587/transcom.E92.B.1380

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Abstract

It is known that MIMO channel matrix condition number influences detectors performance. Several authors have proposed combined decoders, mainly suboptimal, to cope with this fact. These combined algorithms require an estimation of the MIMO channel matrix condition number and a selection of a suitable threshold condition number. This letter presents practical algorithms to carry out the referred tasks and shows their performance in practice.

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