2D Linear Precoded OFDM for future mobile Digital Video Broadcasting

Oudomsack Pierre Pasquero (1) , Matthieu Crussière (1) , Youssef, Joseph Nasser (1) , Jean-François Hélard (2)

1 IETR - Institut d'Electronique et de Télécommunications de Rennes
2 IETR - Institut d'Électronique et des Technologies du numéRique

In this paper, we propose a novel channel estimation technique based on 2D spread pilots. The merits of this technique are its simplicity, its flexibility regarding the transmission scenarios, and the spectral efficiency gain obtained compared to the classical pilot based estimation schemes used in DVB standards. We derive the analytical expression of the mean square error of the estimator and show it is a function of the autocorrelation of the channel in both time and frequency domains. The performance evaluated over a realistic channel model shows the efficiency of this technique which turns out to be a promising channel estimation for the future mobile video broadcasting systems.

Domaines: Réseaux et télécommunications [cs.NI]

Oudomsack Pierre Pasquero, Matthieu Crussière, Youssef, Joseph Nasser, Jean-François Hélard. 2D Linear Precoded OFDM for future mobile Digital Video Broadcasting. Signal Processing Advances in Wireless Communications, Jul 2008, Recife, Brazil. pp.11. ⟨hal-00325766⟩