Power Control Optimization Model in Femto-Macro Networks by CSO Algorithm

For FD-OFDMA communications we focus on resource allocation in two-tier macro-femto HetNets, in which macrocell and femtocell share spectrum .Based on OFDMA technology, we are considering here Full duplex of FBS and Half duplex of MBS and its users FUE. Macrocell got interference from users and FBS in form of crosstier To mitigate cross-tier interference, we develop model for joint subcarrier assignment, power allocation and price regulation which will maximize the utility of both macrocell and femtocell under the interference constraint for the macrocell We are demonstrate a power control, subcarrier allocation and price regulation as a joint triple optimization algorithm which solve the cross-tier interference of femtocell to macrocell. For utility enhancement we use price based resource allocation by proposed CSO cat swarm optimization Algorithm. Subcarriers assignment to the user pair is done for maximization the femtocell utility. The simulation results show effectively suppress of cross-tier interference with maximization of the utility of macrocell and femtocell.