DVB‐S2 Modulation Extensions and Other Advances

Summary

This chapter provides a foundation for the modulation and forward error correction (FEC) discussion. It focuses on the recent advances for ground‐based elements of the satellite ecosystem, specifically digital video broadcasting (DVB)‐S2 extensions known as DVB‐S2X. The DVB‐S2 standard has been specified with the goals of: achieving best transmission performance, embodying flexibility, and requiring reasonably low receiver complexity (using existing chip technology). The chapter briefly covers carrier identifier (CID). The DVB CID standard is the preferred method in the long term. It enables the operators and users to rapidly identify interfering carriers and respond to radio frequency interference (RFI), shortening the duration of each event. The chapter discusses the concept of intelligent inverse multiplexing for satellite applications. It briefly addresses high efficiency video coding (HEVC)/ITU‐T H.265, as another aspect of ground‐related advances expected to impact the industry.