Method and apparatus for spatial modulation based on virtual antenna

A method of receiving signals transmitted via multiple transmission antennas (hereinafter ‘N antennas’) by a receiving side device, the method comprising:

• estimating channels between one or more reception antennas and the multiple transmission antennas;
• receiving spatially modulated information based on estimated channel information;
• and
• demodulating the spatially modulated information, wherein the spatially modulated information is represented based on which transmission antennas among the N antennas were used for transmission;
• and
• wherein a number of the used transmission antennas used for transmitting one transmission information unit (hereinafter, ‘M’ where M≤N) is plural,
• wherein different sequence of the transmission antennas used for transmission represents different information,
• wherein ‘01’ and ‘10’ are used for representing different information,
• wherein ‘M’ is 2, wherein ‘01’ represents a first case where the one transmission information unit is transmitted through a first transmission antenna first of the 2 transmission antennas and then a second antenna of the 2 antennas, and
• wherein ‘10’ represents a second case where the one transmission information unit is transmitted through the second transmission antenna first and then the first transmission antenna.