Research Article Open Access

New Solution for Reducing Doppler Shift in the MB-OFDM System Over High Mobility Multipath Channel for V&I Communication

Sanaa Kabil1, Raja Elassali1, Fouzia Elbahhar2, Brahim Ait Essaid1 and Abdellah Ait Ouahman1
  • 1 Cadi Ayyad University, Morocco
  • 2 Lille Nord de France University, France
American Journal of Applied Sciences
Volume 12 No. 3, 2015, 166-173

DOI: https://doi.org/10.3844/ajassp.2015.166.173

Submitted On: 15 May 2014 Published On: 29 April 2015

How to Cite: Kabil, S., Elassali, R., Elbahhar, F., Essaid, B. A. & Ouahman, A. A. (2015). New Solution for Reducing Doppler Shift in the MB-OFDM System Over High Mobility Multipath Channel for V&I Communication. American Journal of Applied Sciences, 12(3), 166-173. https://doi.org/10.3844/ajassp.2015.166.173

Abstract

The MB-OFDM has been proposed as a good candidate to ensure Vehicle to Infrastructure communication (V&I). Fast moving vehicles present challenges for the proposed system especially for high mobility (250 km h-1). The main objective in this study is to study and investigate the impact of Doppler shift on the quality of transmitted/received signal in terms of Bit Error Rate (BER) and the transmission range. A new solution based on the association of Maximum Likelihood (ML) and Extended Kalman Filter (EKF) algorithmis proposed and computer simulations are performed to confirm the reduction of Doppler impact on the signal quality. Also it is shown that for high value of speed, the new solution can effectively improve the transmission range of the MB-OFDM system.

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Keywords

  • MB-OFDM
  • Multipath Channel
  • Doppler Effect
  • Performance Analysis
  • EKF
  • ML