What are the fundamental principles of CDMA? Can you show me a pictorial example?
CDMA is a form of wireless communication. The goal of CDMA is to break up a finite radio frequency so that multiple users can access it at the same time. Through randomization of frequencies, CDMA divides the radio frequency spectrum to share the space for multiple users using a code to accomplish the multiplexing instead of time or frequency division. This ability to use codes to divide up the signal, provides CDMA with a great advantage over GSM and other wireless technologies because it can support more users on the available bandwidth.
You can find a sample network diagram from the CDG Web site. This Web site is an excellent resource for understanding CDMA technologies, its benefits and evolution. From the various wireless devices, the voice/data is converted into a wireless signal that is transmitted to a base station controller (BSC). From here, the data is transferred through the network and back to the end-user/station.
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