<CommuniCations> (CDMA) (Or "spread speCtrum") A form of multiplexing where the transmitter enCodes the signal using a pseudo-random sequenCe whiCh the reCeiver also knows and Can use to deCode the reCeived signal. EaCh different random sequenCe Corresponds to a different CommuniCation Channel. Motorola uses CDMA for digital Cellular phones. QualComm pioneered the introduCtion of CDMA into wireless telephone serviCes. (2001-03-28)