發送短信 : Spatial modulation for multiple antennas wireless systems

  ____       ___                 ___     _    _   
 |  _ \\    / _ \\    ____      / _ \\  | || | || 
 | |_| ||  / //\ \\  |    \\   | / \ || | || | || 
 | .  //  |  ___  || | [] ||   | \_/ || | \\_/ || 
 |_|\_\\  |_||  |_|| |  __//    \___//   \____//  
 `-` --`  `-`   `-`  |_|`-`     `---`     `---`   
                     `-`