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

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Text this: Amplify-and-forward relay selection with outdated channel state information