Analysis and Development of a Style for Single Frequency Satellite Communication Networks

Satellite communications are experiencing very significant technical evolutions, which will be key in defining the role of satellites in future networks as a means to provide broadband access to the Internet over vast coverage’s. These changes have been enabled by new techniques and technologies: adaptive coding and modulation for the exploitation of EHF bands, where several GHz of bandwidth are available; on board processing for in-space routing; large reflectors for multi-beam antennas with hundreds of spot beams; exploitation of digital beam-forming network concept.in this paper shows As expected, differently from the single beam, the SFSN system is able to guarantee a flat capacity over the entire service area, at the cost of a correct design of beams position and CDD parameters.

Keywords:

OFDM , SDTV , HDTV , Multi- Beam , synthetic multipath , Link Budget