Access methods
Code Division Multiple Access (CDMA)
With CDMA, multiple users can share the same channel by
multiplexing the transmissions in the code space.
Different transmissions are encoded with different codes (keys)
and can coexist in time on the same channel.
Different users are assigned different codes; the cross-
correlation between two different codes is very low.
The receiver retrieves a specific transmission by decoding the
transmission with its corresponding code.