Robust Estimation of the Channel Parameters in Presence of Transmitter and Receiver IQ Impairments - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Military Technology Année : 2022

Robust Estimation of the Channel Parameters in Presence of Transmitter and Receiver IQ Impairments

Résumé

In this paper, we propose a new approach for the estimation of the channel parameters under In-phase/ Quadrature (IQ) impairments, where the term channel refers to any transformation occurring between the transmitter and receiver IQ impairments. While most of the available strategies for channel estimation under IQ impairments are based on the Least-Squares (LS) approach, we propose a new estimator based on the Maximum Likelihood (ML) technique. We show that a simple estimator obtained from the ML gives better statistical performance than any LS-based technique while having a significant lower computational complexity. Mathematically, the proposed ML-based estimator is obtained from the minimization of the smallest eigenvalue of a particular 2 × 2 matrix. Simulations show the benefit of the proposed approach for the estimation of the Carrier Frequency Offset (CFO) and for the estimation of Finite Impulse Response (FIR) channel coefficients under both transmitter and receiver IQ impairments.
Fichier principal
Vignette du fichier
Robust Estimation of the Channel Parameters in the Presence of Transmitter and Receiver IQ Impairments.pdf (678.18 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04145543 , version 1 (29-06-2023)

Identifiants

Citer

Alexandru Frunza, Vincent V. Choqueuse, Pascal Morel, Stéphane Azou. Robust Estimation of the Channel Parameters in Presence of Transmitter and Receiver IQ Impairments. Journal of Military Technology, 2022, 5 (2), pp.19-28. ⟨10.32754/JMT.2022.2.04⟩. ⟨hal-04145543⟩
14 Consultations
22 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More