Linear Precoding in Multibeam SatComs: Practical Constraints

Multiuser precoding of the linear kind is one of the most promising candidate techniques
required for managing inter-beam co-channel interference in aggressive frequency re-use
multibeam High Throughput Satellite (HTS) systems. Although academic research on
precoding schemes for broadband interactive satellite communication (SatCom) systems
is intensifying, there are a number of practical constraints in current DVB-S2-based HTS
systems that may inhibit the application of precoding. These have not been dealt with
hitherto in the literature. The present article attempts to list the relevant issues, propose
some possible ways forward and present some preliminary simulation results