QoS-aware autonomous distributed power control in co-channel femtocell networks

Femtocells (FCs) are small-area cellular networks deployed over a macrocell (MC) network. Typically, FCs are independent of each other and of the underlying MC, thereby necessitating distributed non-cooperative resource allocation schemes. This paper develops a new distributed autonomous uplink (UL) power control (PC) scheme for femto users (FUs). Our work aims at maintaining the minimum required signal to interference plus noise ratio (SINR) for a maximum number of FUs via distributed QoS-aware stochastic power allocation to FUs. We evaluate the performance of our proposed solution and compare it with existing power allocation techniques. Results show that our scheme yields a significant performance improvement in terms of percentage of satisfied users when compared with these existing solutions.