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A frequency-division multiple access system (FDMA) is much less sensitive to near-far problems than code-division multiple access systems (CDMA).
A FDMA receiver must select signals from a desired transmitter tuned to one frequency, and block signals from transmitters tuned to other frequencies -- this is fairly easy and low-cost to do with standard bandpass filters, even when the near-far problem causes undesired transmitters to sound much louder than the desired transmitter, as long as adequate "guard bands" separate one transmitter from the next.
A DSS CDMA receiver must select signals from a desired transmitter and block signals from other transmitters, even when they are all transmitting on the same frequencies at the same time -- this cannot be done with standard bandpass filters.
The techniques DSS CDMA receivers use to select the desired signals are much more sensitive to near-far problems.
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