Iterative joint and interference ing/cancellation decoding algorithms for multigroup space time trellis coded systems

In this paper, we will propose and evaluate the performance of several decoding algorithms for multigroup space time trellis coded (MGSTTC) systems. By considering a single user who transmits simultaneously through K parallel space time trellis encoders, the system can provide high spectral efficiencies; transmit diversity advantages and coding gains. The system is analogous to synchronous multiusers each is transmitting a space time trellis code. The transmitter will divide the information stream and transmits from each encoder (called a group) simultaneously resulting in an increase in the transmitted data rates. The receiver will apply some multiuser detection (MUD) algorithms to detect and decode each group. The paper will focus on joint detection and interference ing/cancellation algorithms.