Joint dynamic frequency allocation and routing strategy for optimizing the power consumption and data rate of OFDMA based femtocell networks

This paper proposes a new resource management (RRM) algorithm that utilizes the self-organizing network functionality for optimizing spectrum usage and minimizing co-layer interference between femtocells. To achieve this, the proposed algorithm dynamically maximizes usage of all the available subcarriers by exploiting knowledge of the users´ location. Taking into account the associated overhead and power consumption it will be shown that the proposed algorithm improves the average data rate per user as well as reduced the overall system power consumption in all femtocell density scenarios, and, is also superior to existing techniques. The fact that the proposed minimizes power consumption without compromising the data rate makes it an ideal candidate for adoption in future green heterogeneous wireless networks.