A Priority Based Resource Allocation Algorithm for Transmission Delay Optimization in TD-LTE-A System

摘要

Traditional resource allocation algorithms mainly focus on the maximization of system capacity. However, transmission delay is a crucial performance index for urgent communications in TD-LTE-A System. In this paper, a priority based resource allocation algorithm aiming at optimizing transmission delay of users was proposed. The scheduling priority was analyzed by considering the channel quality characteristics and packet delay of users. And a resource allocation scheme was proposed in which the resources were assigned to users according to the order of users' scheduling priority. By comparing with the conventional resource allocation algorithms, the simulation results verified that the proposed algorithm can achieve better delay performance, while improving the system throughput.