Analysis of transmission schemes for satellite digital audiobroadcasting

摘要

The European Space Agency (ESA) is studying different transmissiontechniques suited for satellite sound broadcasting services. The authorsreport preliminary results about the performance of two efficienttransmission techniques, namely coded orthogonal frequency divisionmultiplexing and coded quasi-orthogonal code division multiplexing. Bymeans of a computer simulation approach, the performance of the twosystems has been evaluated over the nonlinear satellite fading channel.Link budgets have been established for the case of highly ellipticalorbit (HEO) and geostationary orbit (GEO) satellites. Results show thatboth approaches are suited for satellite radio broadcasting presentingsimilar impairments over the nonlinear satellite fading channel