發送短信 : Spectrum efficiency for log-normal shadowed Rician/Rician channels

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