LTE上行调度算法研究
首发时间:2009-12-02
摘要:本文通过研究LTE上行调度算法,提出了几种改进的调度算法,该算法在系统吞吐量及用户公平性上各有改进。LTE上行调度与下行调度的不同之处在于同一时刻分配各某个用户的所有RB必须是频域连续的。在下行中采用最多的调度算法就是比例公平(PF, proportional fair)算法。本文研究基于这种准则下PF调度算法在LTE上行中的应用。本文研究资源块分组的思想,并研究改进的PF度量值在上行调度的应用,由此提出了几种改进的PF上行调度算法。本文通过仿真给出了几种不同调度算法的性能,并加以比较,分析各自的优缺点。
关键词: SC-FDMA LTE上行调度 比例公平 公平性指数
For information in English, please click here
Proportional Fair Scheduling for LTE uplink
Abstract:LTE uplink scheduling is different from downlink scheduling. The different is that uplink scheduling needs the resource blocks allocated to a user must be adjacent in frequency domain. So the traditional PF scheduling algorithm can not be used in LTE uplink directly. This paper provides some new scheduling algorithm by studying LTE uplink such as using RB grouping method and new PF metric. These algorithms have improvement on system throughput and fairness. This paper shows different system performances by adopting different algorithms.
Keywords: SC-FDMA LTE uplink scheduling PF
基金:
论文图表:
引用
No.3718950134312597****
同行评议
共计0人参与
勘误表
LTE上行调度算法研究
评论
全部评论0/1000