Open AccessMassive MIMO channel estimation considering pilot contamination and spatially correlated channels
Author(s) -
Pereira de Figueiredo F.A.,
Mendes Lemes D.A.,
Ferreira Dias C.,
Fraidenraich G.
Publication year - 2020
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2019.3899
Subject(s) - channel (broadcasting) , estimator , mimo , covariance matrix , contamination , statistics , covariance , mean squared error , computer science , imperfect , mathematics , algorithm , environmental science , telecommunications , ecology , biology , linguistics , philosophy
In this Letter, the authors present a study on linear channel estimators and their respective mean square error expressions acknowledging spatially correlated channels and pilot contamination. They also investigate the impact of imperfect channel covariance matrix knowledge.