A Power Control Algorithm and Software Tool for Femtocells in LTE-A Network

Özet

The heterogeneous networks (HetNets) emerge as one of the most auspicious improvements toward realizing the objective specifications of Long Term Evolution-Advanced (LTE-A) networks. Though similar to all other wireless networks, HetNet also yields from the interference problems, i.e., the co-tier and cross-tier interferences. Regarding functionality and efficiency of the HetNets, the avoidance and management of these interferences are very crucial. In this study, a power control algorithm (PCA) is suggested to decrease the interferences disadvantages in the HetNets. To calculate the signal power, the SINR (Signal to Interference and Noise Ratio) and RSRP (Reference Signal Received Power) are used for downlink and uplink, respectively. The selection decision is taken by signal strength information. The UE (User Equipment) is switched accordingly. A simulation tool is developed and used to investigate and find out the nearest cell to UE in a HetNet.