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 _    _     ______    _____      ___     _    _   
| \  / ||  /_   _//  |__  //    / _ \\  | \  / || 
|  \/  ||   -| ||-     / //    | / \ || |  \/  || 
| .  . ||   _| ||_    / //__   | \_/ || | .  . || 
|_|\/|_||  /_____//  /_____||   \___//  |_|\/|_|| 
`-`  `-`   `-----`   `-----`    `---`   `-`  `-`

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發送短信 : Space-time/frequency line coded OFDM : system design and practical implementation