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Code Division Multiple Access
A coding scheme, used as a
modulation technique, in which multiple channels are independently coded for
transmission. In CDMA, each conversation is digitized and then tagged with a
code. The mobile phone is then instructed to decipher only a particular code to
pluck the right conversation off the air. The process can be compared in some
ways to an English-speaking person picking out the only other person in a room
of foreigners who is speaking English (code). A CDMA channel has a larger
bandwidth than a TDMA channel; but all the users would be using the same
channel. See also TDMA.
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