HSDPA分组调度算法与小区吞吐率研究

分组调度是HSDPA的核心技术之一,对网络性能有重要影响。在HSDPA分组调度功能和实现的基础上,重点分析对比3种典型分组调度算法原理及其对系统的影响,并通过实际测试验证,明确了不同调度算法对小区吞吐率的影响。结论:MAXCI算法下能够得到最大的系统吞吐量,公平性最差;RR算法公平性最好,系统资源利用率最低,吞吐率最小;EPF算法既考虑了用户的公平性,也能从一定程度上保证比较高的系统吞吐量,是一种实用的调度方法。

HSDPA packet scheduling algorithm with small throughput study

Packet scheduling is one of the core techniques of HSDPA for which network performance has important implications. On the basis of the HSDPA packet scheduling function and Implementation, the authors analyze and compare mainly 3 kinds of typical packet scheduling algorithms and their influences on the system. Actual tests verified and clarified the effect of different scheduling algorithms on small throughput rate. Conclusion: MAXCI algorithm can get the maximum system throughput, and fairness is the worst; RR algorithm fairness is best, and the system resource utilization rate is the lowest; EPF algorithm not only considers the fairness among users, but also to a certain extent ensures relatively high system throughput, so it is a practical scheduling method.