Most important advantage is the improved coverage. Since the target is only a small set of users, providing them reliable coverage and a larger bandwidth is easy. Another advantage is the cost saving involved. The need to upgrade the capacity with increasing subscriber base is easily met with femtocells.
- New levels of Interference mitigation and management is required, including macro to femto, femto to femto, and femto/handset interference.
- System selection, Integration with the operator’s core network and access control becomes all the more complicated.
- Security related aspects need to be taken care of.
- Network and frequency planning will be more sophisticated.