A Review on Resource Allocation Techniques in Small Cell LTE-A Heterogeneous Networks

Abstract: According to originating standards for LTE-A mobile networks, the small cells are expected to be deployed in future mobile and wireless networks to improve coverage in specific areas with low signal quality. By placing additional stations to the network, new cell boundaries are introduced. Since heavy deployment of the small cells with low radius is expected in LTE-A networks, the procedures for the user�s resource allocation becomes more frequently. Therefore, more often scanning of higher amount of entities in UE's neighborhood must be performed. Moreover, each resource allocation generates some management overhead and introduces interruption in user�s communication. All these aspects lead to a drop of user�s throughput and QoS. This is getting more apparent with dense deployment of small cells. Hence, large and efficient deployment of the small cells requires optimizing the principles of user�s service allocation support to ensure continuous high level of service quality.

Keywords: LTE-A mobile networks, QoS, Wireless Networks, Heterogeneous Networks, E- UTRAN.