# Near-far problem A phenomenon of interference systems. Not experienced by [GSM](Global%20System%20for%20Mobile.md) - [TDMA](Time%20division%20multiple%20access.md) (no interference), but [CDMA](Code%20division%20multiple%20access.md) based will (all users transmitting at the same time) A [receiver](receiver.md) captures a strong signal and therefore can't detect a weaker signal due to hardware limitations.  Closest to the base station has the higher transmit power. A large [dynamic range](dynamic%20range.md) in the received signal causes the [automatic gain control](automatic%20gain%20control.md) in the [receiver](receiver.md) front-end to prevent the saturation of the [analogue to digital converter](analogue%20to%20digital%20converter.md). With a limited ADC resolution, the weaker signal falls into the noise level of the ADC. ## Solution Nearby users should reduce their transmit power so they don't overshadow weaker signals. You don't need to communicate with the [Base station](Base%20station.md) at the highest power level. [^1] # References [^1]: [Map of TELE4652](../../Atlas/Map%20of%20TELE4652.md)