Channel analysis and estimation for OFDM systems with Doppler effect

Authors:
Yung-An Kao;Chien-Hsin Hsu
Affiliations:
Department of Electrical Engineering, Chang-Gung University, Tao-Yuan, Taiwan, R.O.C;Department of Electrical Engineering, Chang-Gung University, Tao-Yuan, Taiwan, R.O.C
Venue:
ICCOM'06 Proceedings of the 10th WSEAS international conference on Communications
Year:
2006

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Abstract

In this paper, we propose the channel analysis and estimation for Orthogonal Frequency Division Multiplexing (OFDM) systems with Doppler Effect. The Digital Video Broadcasting-Terrestrial (DVB-T) is taken as an example to discuss the time-variant channel. According to the channel analysis, we also propose a novel pilot-based estimation scheme, which uses 2-D linear interpolation to reconstruct the channel. Finally, the simulation result reveals that the proposed estimation scheme performs well even under the environment with the velocity of vehicle.