A study of propagation path modeling for mobile reception on Orthogonal Frequency Division Multiplex

Abstract

In Japan, the Digital Terrestrial Television Broadcasting (DTTB) scheme should have mobile reception capability. It is well known that the effect of multipath fading in fixed condition can be reduced by Orthogonal Frequency Division Multiplex (OFDM) method. However, the signal quality degrades serially by frequency selecting fading and Doppler shift of the mobile environment. This is because the orthogonality between the inter-carriers will be last due to interference In this paper, we discuss about the effect of multipath fading for OFDM system, and shown the results of influence of Rayleigh model and multipath model.