A Study of Multipath Interferences on OFDM Transmission

Abstract

Digital terrestrial television broadcasting has been studied for new TV services and efficient use of frequency. Its modulation method should be orthogonal frequency division multiplexing, because this method is robust against multipath interference. The method also enables single frequency network. This paper describes a theoretical study of bit error rate degradation by multipath waves. The result of experimental measurements are given. Bit error rate degradation in mobile reception under a single frequency network is also discussed.