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

American Journal of Applied Sciences

Raja Elassali¹  Brahim Ait Essaid¹  Sanaa Kabil¹  Fouzia Elbahhar¹  Abdellah Ait Ouahman¹ 

关键词: MB-OFDM;    Multipath Channel;    Doppler Effect;    Performance Analysis;    EKF;    ML;   

DOI  :  10.3844/ajassp.2015.166.173

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

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.

【 授权许可】

Unknown