Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single communication channel. This allows several users to share a band of frequencies (see bandwidth).
CDMA, which stands for Code Division Multiple Access, is a competing cell phone service technology to GSM on older networks that are gradually phasing out. In 2010, carriers worldwide switched to LTE, a 4G network that supports simultaneous voice and data use.
CDMA was the cornerstone of the 3G revolution (under the UMTS standard using W-CDMA). While 4G LTE and 5G networks have primarily shifted to orthogonal frequency-division multiple access (OFDMA) for its efficiency with data, the principles of spread spectrum and code-based access live on.
What is Code Division Multiple Access (CDMA) and How Does It Work
Quick Definition: CDMA is a wireless transmission technology that assigns unique values to users, allowing multiple users to broadcast over the same frequencies simultaneously. CDMA, or Code-Division Multiple Access, is a set of protocols used in wireless communications. Think in terms of 4G, 5G, and LTE. CDMA is a form of multiplexing, which enables several signals to use a single channel at ...
CDMA, or Code Division Multiple Access, is a technology used for mobile (cellular) communication, similar to GSM. It’s considered a more secure method of communication thanks to its spread spectrum property.
CDMA vs. GSM: What's the Difference? It's time to walk away from CDMA and GSM, two technologies in their twilight years. No matter how much you love your old phone, you need to move to 4G or 5G.