CDMA stands for Code Division Multiple Access, is one of the dominant cellular network technologies along with GSM (Global System for Mobile communications). It is used for 2G and 3G wireless communication. Unlike the other competing technologies such that GSM and TDMA, it does not provide a specific frequency to each user. Instead of this, CDMA uses the concept of multiplexing which allows several users to occupy a common transmission channel, utilizing the maximum of available bandwidth.
The very first CDMA standard known as CDMA ONE, offers a transmission speed of upto 14.4 kbps in its single channel form. But the advance technologies like CDMA 2000 and WCDMA offer much greater speed than it.
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