Multiuser detection in the presence of strong phase noise for DVB-RCS systems

In this paper we investigate the effectiveness of iterative (turbo) synchronization at improving the link reliability of digital video broadcasting return channel via satellite (DVB-RCS) for different modulation schemes in the presence of strong phase noise. We also propose a multi-user scheme that enables two remote terminals, each using QPSK, to simultaneously use the same frequency band. All additional complexity is located at the central hub receiver, while remote terminals use traditional DVB