CNN aided Weighted Interpolation for Channel Estimation in Vehicular Communications

Abdul Karim Gizzini (1) , Marwa Chafii (2) , Ahmad Nimr (3) , Raed M Shubair (2) , Gerhard Fettweis (3)

1 ETIS - UMR 8051 - Equipes Traitement de l'Information et Systèmes
2 NYUAbu Dhabi
3 Vodafone Chair Mobile Communications Systems

IEEE 802.11p standard defines wireless technology protocols that enable vehicular transportation and manage traffic efficiency. A major challenge in the development of this technology is ensuring communication reliability in highly dynamic vehicular environments, where the wireless communication channels are doubly selective, thus making channel estimation and tracking a relevant problem to investigate. In this paper, a novel deep learning (DL)-based weighted interpolation estimator is proposed to accurately estimate vehicular channels especially in high mobility scenarios. The proposed estimator is based on modifying the pilot allocation of the IEEE 802.11p standard so that more transmission data rates are achieved. Extensive numerical experiments demonstrate that the developed estimator significantly outperforms the recently proposed DL-based frameby-frame estimators in different vehicular scenarios, while substantially reducing the overall computational complexity.

Mots clés: Channel estimation; deep learning; IEEE 802.11p standard; vehicular communications

Domaines: Théorie de l'information [cs.IT]; Traitement du signal et de l'image [eess.SP]; Intelligence artificielle [cs.AI]

Abdul Karim Gizzini, Marwa Chafii, Ahmad Nimr, Raed M Shubair, Gerhard Fettweis. CNN aided Weighted Interpolation for Channel Estimation in Vehicular Communications. IEEE Transactions on Vehicular Technology, 2021, pp.1-1. ⟨10.1109/TVT.2021.3120267⟩. ⟨hal-03381681⟩