Improved decision-directed recursive least squares MIMO channel tracking

Authors:
Emna Eitel;Rana H. Ahmed Salem;Joachim Speidel
Affiliations:
Institute of Telecommunications, University of Stuttgart, Germany;Institute of Telecommunications, University of Stuttgart, Germany;Institute of Telecommunications, University of Stuttgart, Germany
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

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Abstract

This paper presents a comparative study of different Recursive Least Squares algorithms to track a Rayleigh flat fading MIMO channel. We investigate the effect of the initialization and training of these algorithms on their performance. We propose a new training scheme which can deliver a lower mean squared estimation error without loss of bandwidth efficiency.