Enhancement of Spectral Efficiency in LTE-Advanced Network through Fractional Frequency Reuse

Abstract: The enhancement of the spectral efficiency of LTE-Advanced network by deploying fractional frequency reuse is one of the major challenges in practical deployment of 4G technology. The FFR can be deployed in LTE network based on the feasibility of cellular network. There are 3 different types of deployment schemes: strict FFR, soft FFR, and FFR- 3 schemes for LTE-Advanced network configuration. In the thesis work a variation of the FFR-3 scheme, which is referred to as the dynamic FFR (DFFR) scheme, is proposed. A broad comparison among all these FFR schemes is performed by using Monte Carlo simulations considering performance metrics such as Average throughput in uplink and downlink of LTE network and spectral efficiency. Simulation results show that the average gain in spectral efficiency (b/s/Hz) of the network are significantly higher for the proposed FFR scheme when compared to the conventional FFR scheme in LTE Advanced network.

Keywords: Dynamic Fractional Frequency reuse, Self-optimization network of LTE, Enhanced Spectral efficiency in LTE advanced network, Improvement in FFR, Frequency deployment in 4G Technology