Here are the advantages and disadvantages of CDMA:

The Advantages of CDMA:

• Enable integration of voice, data and video. Spread-spectrum and power-control functions that increase the capacity of CDMA call bandwidth is sufficient for a variety of multimedia data services, and the soft hand-off scheme ensures no data loss.

• Number of subscribers in a cell may access the frequency spectrum bands together for a particular encoding technique. Considered more advanced than CDMA digital cellular system that already exists. FSN is able to provide a more natural sound than the perfect digital cellular systems that already exist.

• Have very low power output that is 0.2 watts (compared to the GSM system) that use 1.5 to 3 watts, making batteries CDMA system more durable. Requires lower transmit power, so cell phone talk time may be longer.

Here are the advantages of CDMA:

• Meet the needs of voice and data communications wirelessly

• Has a higher channel capacity to know more simultaneous calls per channel compared to other systems.

• CDMA system offers the capacity improvement exceeds the analog AMPS system as good as other digital cellular technologies. CDMA generates a spread-spectrum scheme that randomly provides the available bandwidth of 1250 KHz for each bit rate of 9600 bps caller.

• Improved call security. Security to the nature of CDMA spread spectrum approach, and the fact that this technology was first built to provide secure communications for the military.

In the era of telecommunication technology, speed, and economic factors become the main focus in the delivery of information. This is what initiated the scientists to create a telecommunications technology that is fast, inexpensive, and broad coverage. These developments began to appear with the 1G technology. After a time, 1G technology is considered start obsolete then comes the 2G technologies are divided into two types, the GSM and Code Division Multiple Access (CDMA) technology.

Code Division Multiple Access or is often abbreviated with CDMA is a multiplexing (not a modulation scheme) and a common access method that divides the channel is not based on time (as in TDMA) or frequency (as in FDMA), but a way of encoding data with a special code associated with each channel that exists and uses the constructive interference properties of the code-it's a special code to do the multiplexing. CDMA refers to digital cellular telephone system that uses a shared access scheme was initiated as QUALCOMM.