基于QoS付费业务的LTE下行跨层分组调度算法

摘要

通过对LTE下行跨层分组调度各种算法的研究分析,从时延、丢包率、吞吐量和公平性等因素入手,在原有的比例公平性调度算法(PF)上进行改进,加入了补偿因子和付费权重值,使得改进型跨层调度算法,在吞吐量有一定提高的情况下,有效地降低了高优先级业务的丢包率和时延,并确保了高优先级业务的公平性.%By researching various algorithm of the LTE downside of scheduling,from the delay,packet loss rate,throughput and fairness of factors,the Proportion Fairness(PF) scheduling algorithm in the original algorithm is improved,the compensation factor and paid weights are added,making cross layer scheduling algorithm improved,it can improve the throughput,effectively reduce the high priority business lost package rate and the time delay,and ensure the high priority the fairness of the business.