Low-Complexity Approximations for LMMSE Channel Estimation in OFDM/OQAM

Vincent Savaux (1) , Yves Louët (1) , Faouzi Bader (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique

In this paper, the authors describe and compare two low-complexity approximations of the linear minimum mean square error (LMMSE) channel estimation method for orthogonal frequency division multiplexing/offset quadrature amplitude modulation (OFDM/OQAM) systems. Simulations reveal that we are able by proposed approximations to reduce the complexity of the LMMSE estimator without degrading the overall BER system performance.

Keywords: OFDM/OQAM; Channel estimation; MMSE; Approximation methods

Domains: Engineering Sciences [physics]

Vincent Savaux, Yves Louët, Faouzi Bader. Low-Complexity Approximations for LMMSE Channel Estimation in OFDM/OQAM. 2016 23rd International Conference on Telecommunications (ICT), May 2016, Thessaloniki, Greece. ⟨10.1109/ict.2016.7500464⟩. ⟨hal-01311058⟩