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MIMO Channel Matrix Condition Number Estimation and Threshold Selection for Combined K-Best Sphere Decoders
Sandra ROGER
Alberto GONZALEZ
Vicenc ALMENAR
Antonio M. VIDAL
Publication
IEICE TRANSACTIONS on Communications Vol.E92-B No.4 pp.1380-1383
Publication Date: 2009/04/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword:
MIMO detection,
K-Best Sphere Decoder,
matrix condition number estimation,
threshold selection,
Full Text: PDF(159.9KB)
Summary:
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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