一种基于用户特征的LTE下行频率选择性调度算法

A LTE Downlink Frequency Selective Scheduling Algorithm Based on UE Characteristics

通过对LTE下行频率选择性的调度算法的研究,提出一种基于用户特征的下行频率选择性调度算法。算法选出低移动性和子带频选特性稳定的用户进行频率选择性调度,而对其他用户进行一般调度,通过对用户进行筛选,该算法能够减少频率选择性调度产生的负增益,提高频选调度的性能。通过分别与经典调度算法、频选调度算法仿真对比,结果表明新算法能够提高现有频选调度算法的性能。

Through the research of scheduling algorithm for LTE downlink frequency selective, proposes a new downlink frequency selective scheduling algorithm based on user characteristics is proposed in this paper. The algorithm selects frequency selective scheduling UEs which have the following characteristics： low mobility and better subband frequency selective stability. Otherwise the algorithm schedules the UEs according the original scheduling algorithm. By selecting UEs, the proposed algorithm can reduce the frequency selective scheduling negative gain, and improve the performance of frequency selective scheduling. This paper respec- tively simulates the classical scheduling algorithm, frequency scheduling algorithm and the new frequency selective scheduling algo- rithm, the simulation results show that the new proposed algorithm can improve the performance of existing frequency selected scheduling algorithm.