Power Control Schemes for Interference Management in LTE-Advanced Heterogeneous Networks

Abstract

The issue of inter-cell interference with the co-tier and cross-tier arises in LTE-A Heterogeneous networks when thelow power base station deployed in a huge number in the ultra-densities area. This problem is managed by RRM (Radio Resource Management)technique. RRM uses different algorithms, application, and parameters to avoid and mitigate co-channel and cross-channel interference. The main objective of the Radio Resource Management is to maximize the use of limited resources. It manages all the resources like power, frequency and time. The power control Radio Resource Management scheme is used to control the interference between Femto to Femtocells and Femto to Macrocells. These resources are regulated separately or in combination,the approach is called hybrid Radio Resource Management. In this paper various Power schemebased on Fixed, Constant Femto Base Station and Targeted SINR is used. These Powers control Scheme are applied to the networktopology with increment in the size of femto cell range and number of femto and macro userin increment order. The performance is analyzed on SINR, pathloss and throughput. The comparison results of in between Fixed, Constant Femto Base Station and Targeted SINR power schemeare shown in graphs. The result reflects that constant FBS scheme has outperformed in user increment scenario and range increment scenario.