CDMA and WCDMA are the two most common standards for mobile phones. Both are used for mobile data services and use a similar algorithm for channel division. Both are 2G technologies. They are often used in tandem with GSM. The difference between these two standards is their frequency bands. WCDMA has five MHz and CDMA uses 1.25 MHz. As such, they are largely equivalent in performance.
In comparison to other cellular technologies, CDMA is more powerful than WCDMA. Using a DS-CDMA-based system allows for better spectral effectiveness and minimal interference among users. This is a critical factor in making this technology the preferred option for mobile communications. However, it is not the only difference between the two technologies. WCDMA has the advantage of being easier to implement in most scenarios.
While UMTS and CDMA are similar, WCDMA uses radio technology. WCDMA uses code-division multiplexing, which means that data can be sent in smaller packets than UMTS. WCDMA is used by most phones because it supports a network with higher bandwidth and efficiency. Both systems have their benefits and disadvantages. However, both are widely accepted, and the choice will depend on your individual needs.
Code Division Multiple Access is a method of multiplexing different signals into a single channel. WCDMA uses 5MHz or 10MHz channel bandwidth. WCDMA can increase the amount of bandwidth available by artificially increasing it. However, WCDMA is not widely used and is prone to compatibility issues. You can read more about each one at their official websites. This article will help you understand the main differences between CDMA and WCDMA.