MAC scheme for hybrid return link in a DVB RCS+M railway scenario

This paper addresses the return channel resource allocation in a DVB-RCS mobile system. As introduced in the new version of the DVB-RCS standard, the possibility of using a continuous carrier operation mode has been evaluated proposing a mechanism able to switch the mobile terminals from a classical MF-TDMA to a continuous carrier access scheme mode. The paper shows results that can provide some guidelines to the satellite operators that want to adopt in their satellite system this hybrid mode. (5 pages)