Doppler effect compensation scheme based on constellation estimation for OFDM system

Abstract

A new and effective Doppler effects compensation scheme for orthogonal frequency division multiplex (OFDM) systems based on constellation estimation is presented with analytical descriptions that quantitatively clarify the mechanism of inter-carrier interference. The proposed compensation techniques, applicable in both frequency and time domain with remarkable accuracy, are crucial to the future OFDM system operating on ultra-high-speed mobile vehicles.