A Dual Priority Component Carrier Selection Algorithm in LTE-Advanced Systems

In order to meet the growing demand of higher transmission rate, carrier aggregation (CA) technology has been proposed in 3GPP Release 10. In a backward compatible LTE-Advanced (LTE-A) system with CA, a well-designed component carrier (CC) selection scheme is critically significant for system performance, especially when lots of user equipment (UE) with different CA capabilities are coexisted. This paper presents a novel dual priority CC selection (DPCS) algorithm, considering not only UE's CA capability but also carrier load and channel conditions on different CCs. Simulation results demonstrate that the given algorithm is able to improve the system performance in terms of throughput and fairness compared to the existing algorithms.