Data broadcasting over DAB/DMB with Fountain codes and auxilliary mobile data channels

In this paper we propose a system for efficient broadcasting of digital data using DAB/DMB with Fountain Codes and an auxiliary mobile data channel to provide feedback about the completeness of the transmitted data by all the receivers. This auxiliary channel can also be used to supply extra codewords to the receivers that failed the message decoding previously brodcasted. We also show that this combined system can be an highly efficient solution when a large number of receivers are expected to receive the same information such as in outdoor electronic signage.