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

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