What are the differences in channel allocation problem in FDMA/TDMA based system versus CDMA-based system?
a. In CDMA system, the number of possible codes indicate the number of users that can be supported so it can support more user
b. In CDMA system, the number of users are supported less than those in FDMA/TDMA
c. In FDMA/TDMA system, the number of frequencies and time slot is unlimited so it can support more users.
d. In FDMA/TDMA system, the number of frequencies and time slot is limited so it can support more users.
Answer: a