HSDPA中的分组调度算法

摘要

High Speed Downlink Packet Acess adopts key technologies like AMC,HARQ and fast scheduling to improve data transfer rate, and packet scheduling becomes an important factor that affects system performance. The paper analyses three classical packet scheduling algorithms RR,Max C/I and PF.which are support Non-Real time services in HSDPA system, also analyses two packet scheduling algorithms M-LWDF and EXP.which are support real time services,and studies the performances of the algorithms in system throughput and user fairness.%HSDPA采用了AMC,HARQ和快速调度等关键技术以提高数据传输速率,分组调度成为影响系统性能的一个重要因素.分析了HSDPA中支持非实时业务的三种经典分组调度算法RR、Max C/I和PF,以及支持实时业务的两种分组调度算法M-LWDF和EXP,并从系统吞吐量和用户公平性等方面研究了它们的性能.