A review and survey of radio resource management techniques in LTE-A network: Challenges and perspectives

LTE-Advanced (LTE-A) is an important aspect of 4G mobile network standard in which comply with the IMTAdvanced requirements. It has ability to increase the transmission bandwidths up to 100 MHz and it can transmit with peak data rates up to 1 Gb/s and 500 Mb/s, downlink and uplink respectively. There are many techniques which use to address the challenges that appear when designing and deploying the Long Term Evolution- Advanced (LTE-A) network. The first classify of these techniques is the radio resource management (RRM) techniques which is designed for controlling the interference, radio resource utilization and QoS. Second classify, scheduling techniques aim to achieve the system performance by increasing the network spectral efficiency and fairness. Third classify, interference management techniques are used to eliminate and overcome the interference issues which affect on the system throughput. Fourth classify, mobility management techniques help the system with low service interruption probability. This paper focuses on the study of RRM schemes that help the users to get the efficient spectrum to satisfy their QoS requirements and improve the overall system performance in terms of complexity, interference mitigation, spectral efficiency and fairness. This paper also provides the taxonomy of RRM techniques in femtocell along with the extends and the limitations of each technique.