Study of digital satellite broadcasting system using OFDM scheme

Abstract

The digital and mobile systems are expected in a future satellite broadcasting. The OFDM scheme improves an interference due to multi path propagation by using multi carrier. Therefor, OFDM scheme is useful in a mobile satellite broadcasting system. However, the OFDM scheme has the disadvantage of distortion by nonlinearity of satellite transponder due to multi carrier. This paper shows analysis of bit error performance including nonlinearity of satellite transponder and multi path propagation, and it shows the link budget in digital satellite broadcasting using OFDM scheme.