System and method for assisting generalized spatial modulation based on dual-mode index

The invention discloses a system and a method for assisting generalized spatial modulation based on dual-mode indexes. The system comprises a transmitting end module, a channel module and a receiving end module, the transmitting end module, the channel module and the receiving end module are connected in sequence; the transmitting end module is used for transmitting the information bits of each time slot through constellation modulated information; the channel module is used for transmitting the information of the transmitting end through the wireless channel module; and the receiving end module is used for carrying out information recovery on the information received from the wireless channel through a detection algorithm. By activating all transmitting antennas and using a constellation modulation scheme of different power modes, the performance loss of the system is reduced as much as possible on the premise of improving the spectrum efficiency of the system. Compared with a generalized spatial modulation