DVB-S2

DVB-S2 is a newer specification of the DVB-S standard. Designers claim that DVB-S2 performance gains over DVB-S is circa 30%. Unlike DVB-S, it does not rely on MPEG2 encoding, but H.264 (MPEG4).
Main features:
DVB-S2 combines DVB-S (intented for final consumers ) with DVB-DSNG (used by professionals),
Adaptative coding to optimize the use of satellite transponders.
4 modulation modes are available : QPSC,8PKS (used in non-linear transponders near to saturation); 16APKS and 16APKS (for professional, semi-linear aplicatons).
Improved rolloff: &alpha=0.20 & &alpha=0.25 in adition to the DVB-S &alpha 0.35
Error correction: DVB-S2 uses a FEC system based on concatenation of the Bose-Chaudhuri-Hocquenghem with a Low parity Check. Performance should be 0.7dB close to the Shannon limit.
Cheap to implement.