@base . a , ; "WSEAS transactions on communications" . a , , ; , , ; "WSEAS transactions on communications." ; ; ; ; "1109-2742" ; ; ; "1109-2742" ; ; "1109-2742" ; "WSEAS transactions on communications" , "WSEAS transactions on communications." ; . . a ; "1109-2742" ; . a ; "1109-2742" ; . a ; ; "20140103132100.0"^^ ; ; . a ; . a .