Optimization of Training Signal Transmission for Estimating MIMO Channel under Antenna Mutual Coupling Conditions

International Journal of Antennas and Propagation. 2010;2010 DOI 10.1155/2010/213576

 

Journal Homepage

Journal Title: International Journal of Antennas and Propagation

ISSN: 1687-5869 (Print); 1687-5877 (Online)

Publisher: Hindawi Publishing Corporation

LCC Subject Category: Technology: Electrical engineering. Electronics. Nuclear engineering | Social Sciences: Transportation and communications: Cellular telephone services industry. Wireless telephone industry

Country of publisher: Egypt

Language of fulltext: English

Full-text formats available: PDF, HTML, ePUB, XML

 

AUTHORS

Xia Liu (School of ITEE, The University of Queensland, Brisbane QLD 4072, Australia)
Marek E. Bialkowski (School of ITEE, The University of Queensland, Brisbane QLD 4072, Australia)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 24 weeks

 

Abstract | Full Text

This paper reports investigations on the effect of antenna mutual coupling on performance of training-based Multiple-Input Multiple-Output (MIMO) channel estimation. The influence of mutual coupling is assessed for two training-based channel estimation methods, Scaled Least Square (SLS) and Minimum Mean Square Error (MMSE). It is shown that the accuracy of MIMO channel estimation is governed by the sum of eigenvalues of channel correlation matrix which in turn is influenced by the mutual coupling in transmitting and receiving array antennas. A water-filling-based procedure is proposed to optimize the training signal transmission to minimize the MIMO channel estimation errors.