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 _____      ______    ____       ___      ______  
|  __ \\   /_   _//  |  _ \\    / _ \\   /_____// 
| |  \ ||   -| ||-   | |_| ||  / //\ \\  `____ `  
| |__/ ||   _| ||_   | .  //  |  ___  || /___//   
|_____//   /_____//  |_|\_\\  |_||  |_|| `__ `    
 -----`    `-----`   `-` --`  `-`   `-`  /_//     
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Text this: MMSE multiuser detection for uplink DS-CDMA with regenerative cooperative relaying