Communication Apparatus and Method for High Efficiency Satellite Service

The invention VCM (Variable Coding and Modulation) or ACM (Adaptive Coding and Modulation) on the satellite services for satellite broadcasting and communication environment, the frame synchronization and MODCOD (Modulation Code rate) detecting the MMSE (minimum-mean square error) equalization required by improving eliminate the distortion or the adjacent-symbol interference for the application of groups, the bandwidth per relates to transmitting and receiving frequency efficiency and transmission efficiency or the bandwidth communication apparatus and method that can improve (Spectral efficiency, SE) each of the satellite signal.