Abstract
Transmit power of a femtocell access point (FAP) is a key design parameter in two-tier networks. When the FAP is near the macrocell edge, existing transmit power design based on the strongest interference from the macrocell base station (MBS) may not be appropriate. This paper proposes three criteria for FAP transmit power control, two of which taking into account the interference from neighbor MBSs. Particularly, the proposed transmit power control based on the sum interference criterion is suitable for an FAP located near the macrocell edge and outperforms an existing criterion under the target FAP coverage.
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