Em-Based Semi-Blind Mimo-Ofdm Channel Estimation

Abdelhamid Ladaycia; Adel Belouchrani; Karim Abed-Meraim; Anissa Mokraoui

ICASSP 2018accepted0 citations

Em-Based Semi-Blind Mimo-Ofdm Channel Estimation

Abdelhamid Ladaycia, Adel Belouchrani, Karim Abed-Meraim, Anissa Mokraoui

Abstract

This paper deals with semi-blind (SB) channel estimation of Multiple-Input Multiple-Output Orthogonal Frequency-Division Multiplexing (MIMO-OFDM) wireless communications system in the uplink transmission. Herein, we propose a new channel estimation approach using the well known EM technique. More precisely, we derive first the SB EM algorithm in the MIMO case. Then, a parallelizable version of this algorithm is introduced relying on the decomposition of the MIMO system into several MISO systems. Finally, we propose a reduced cost EM version where only the lattice points in the neighboring of the pilot-based detected symbols are considered.

BibTeX

@inproceedings{icassp2018_embasedsemiblind,
  title = {Em-Based Semi-Blind Mimo-Ofdm Channel Estimation},
  author = {Abdelhamid Ladaycia and Adel Belouchrani and Karim Abed-Meraim and Anissa Mokraoui},
  booktitle = {ICASSP 2018},
  year = {2018}
}