Multiple Access Methods
One transponder serving several earth stations simultaneously
Multiple access is a radio transmission scheme that allows several earth stations to transmit in the same time span. This provides the way to network these stations together, either in a Star or a Mesh network. Types of Multiple Access Methods
There are three types of Multiple Access Methods to understand:
- Frequency Division Multiple Access (FDMA) - flexible and simple
- Time Division Multiple Access (TDMA) - popular
- Code Division Multiple Access (CDMA Spread Spectrum) - highly secure
This illustration shows how the most common Multiple Access Methods allow the capacity of a standard transponder to be shared.