What Are The Advantages Of Cdma?

1.	What Are The Advantages Of Cdma?
Answer» CDMA has a soft capacity. The greater the number of codes, the more number of users. However, many codes are used S/I drops and the BER (Bit Error Rate) will increase for all users. CDMA requires a tight power control as it suffers from near-far effect. In other words, a user near the base station transmits the same power as a user later will drown the latter signal. All signals MUST have more or less equal power at the receiver. Rake receivers can be used to improve signal reception. DELAYED versions of time (a chip or later) of the signal (multipath signals) can be collected and used to make decisions at the bit level. Flexible transfer may be used. Mobile base STATIONS can switch without CHANGING operator. TWO base stations receive mobile signal and the mobile receives from two base stations. Transmission Burst - reduces interference.

Answer»

CDMA has a soft capacity. The greater the number of codes, the more number of users. However, many codes are used S/I drops and the BER (Bit Error Rate) will increase for all users.
CDMA requires a tight power control as it suffers from near-far effect. In other words, a user near the base station transmits the same power as a user later will drown the latter signal. All signals MUST have more or less equal power at the receiver.
Rake receivers can be used to improve signal reception. DELAYED versions of time (a chip or later) of the signal (multipath signals) can be collected and used to make decisions at the bit level.
Flexible transfer may be used. Mobile base STATIONS can switch without CHANGING operator. TWO base stations receive mobile signal and the mobile receives from two base stations.
Transmission Burst - reduces interference.

Discussion