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Interference management is one of the most important issues in two-tier femtocell networks in which a central macrocell underlaid with several femtocell hotspots. To address the cross-tier and co-tier interference, this paper introduces an energy-efficient power control algorithm via convex pricing scheme, where both circuit and transmit power have been considered. To achieve the target SINR, the...
Due to large-scale and self-deployed of femtocells overlaid on traditional cellular networks, serious cross- and co-tier interference may arise without good coordination. To address this problem, this paper proposes a distributed power control scheme for the uplink transmission of two-tier OFDMA femtocell networks. Two models are considered: single-channel femtocell networks and multiple-channel femtocell...
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