The importance of distributed power control schemes for
HSDPA femtocells have been described in [116]. Two distributed
power control schemes have been proposed, in the geo
static scheme the transmit power of a femtocell is controlled
on the basis of its location. While in the adaptive power control
scheme, a target data rate is computed by the network and
the transmit power is adjusted to achieve these data rates
locally. Another scheme [117] addresses the problem of power
control in decentralised OFDMA based femtocell networks
and a distributed power control and scheduling algorithm is
proposed. The algorithm is able to exploit multiuser diversity