Radio resource allocation with energy efficiency-throughput balancing for LTE downlink

Energy consumption in wireless communication systems is increasing tremendously, wherein most of the energy consumedis by the evolved NodeBs in LTE network. Nowadays the research trend is majorly focused on Green communication which aims at reducing the Energy consumed in a network. In this paper, a radio resource allocation algorithm that is meant to balance energy efficiency and throughput maximization is proposed. The proposed algorithm is used to allocate Resource Blocks (RBs) to users considering the data rate requirements of the users based on priority for LTE downlink while maintaining Quality of Service (QoS). In this way the scarce spectrum is effectively utilized and the energy efficiency (EE) is improved. The proposed algorithm is compared with conventional scheduling algorithms such as Round Robin (RR), Best CQI (Best CQI/BCQI) and is analyzed on the basis of throughput, fairness and Energy Consumption Ratio (ECR).