**4. Femtocell performance**

In this section, the performance of a femtocell service is observed in the presence of background traffic in xDSL modem. This observation will effectively address the nature of FAP which is customer premises equipment. It is most likely that the user will plug the FAP to xDSL modem or home gateway on top of the existing broadband access in the home. Without prior notice, the femtocell service will be mixed with traffic from PC or other devices connected to the same modem.
