CALL ADMISSION CONTROL IN LTE

Abstract

In radio resource management (RRM) of Long Term Evolution (LTE) networks, the call admission control (CAC) techniques play an important role in providing Quality of service. To achieve this role must granted bit rate to services that affected by packet latency and packet dropping to satisfy the QoS requirement. The main goal of this research is to evaluate a proposed admission control algorithms in providing QoS. Two algorithms of admission control are compared, admission with priority and without priority are depends on quality of service class identifier (QCI) investigates the performance metrics blocking probability, available physical resource block, throughput and delay. MATLAB was used for the evaluation of algorithms. Simulation results show higher connection admission rate as compared with non-priority services. The results showed that as the number of user increase the blocking probability increased by 100% due to available limited resources. It was also noticed that as number of user increase available physical resource block decreased by 3.93% from total bandwidth. The simulation also showed that as the number of user increase the throughput increased by 33% and the Delay reduced by 80.17% in priority.