Assisted Channel Estimation with Dynamic Allocation Pilot Subcarriers for OFDM Communications

Boudali Ouarzazi (1, 2) , Atika Rivenq (1, 2) , Iyad Dayoub (1, 2) , Marion Berbineau (1, 2)

1 IEMN-DOAE - Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520
2 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520

In this paper, a transmission system based on OFDM (Orthogonal Frequency Division Multiplexing) technique and channel estimation is proposed. The idea is to enhance the assisted channel estimation without data rate loss. A solution based on frequency diversity is proposed. With the same number of pilots, the global system performances are better for higher mobility speed. The main results will be presented in the case of high mobility context.

Mots clés: Doppler Effect; Channel Estimation; OFDM; Rayleigh Channel; BEM; Mobility

Domaines: Informatique [cs]

Boudali Ouarzazi, Atika Rivenq, Iyad Dayoub, Marion Berbineau. Assisted Channel Estimation with Dynamic Allocation Pilot Subcarriers for OFDM Communications. Wireless Engineering and Technology, 2013, 04 (04), pp.155-160. ⟨10.4236/wet.2013.44023⟩. ⟨hal-03383023⟩