Performance Evaluation of Radio Resource Management in 4G Wireless Networks

Abstract

Future generations such as LTE is playing crucial role in improving the performance of services at networks. The rapied change and fluctuation in Physical Layer made Medium Access Layer (MAC) instable and this affects directly to the Radio Resource Management (RRM). In this thesis, Best CQI and RR Radio Resource Management Schemes will be evaluated to determine their strength and weakness considering various performance metrics to improve the system. MatLab simulation of Call Admission Control (CAC) with Round Robbin (RR) and Best Channel Quality Indicutor (CQI) are conducted to evalute the MAC layer parameters in both scheduling algorithms. From the simulation results its found that the throughput in Best CQI is outperform RR by 98% ,while fairness in CQI is about 43% and 57% in RR. However, Data rate in Best CQI is higher than that of RR by 98%. Also its found that the utlization of RB is higher in RR by 50% and the acceptance of the users in RR is higher than CQI by 40%. Lastly, from the gained results we can conclude that CQI has best bit rate but it has higher blocking rate.