摘要
提出了一种基于HSDPA系统的跨层分组调度方案,以支持实时业务QoS要求。在调度过程中,按照业务类型和实时要求将其排入分组队列,引入实时吞吐量和信道信息估算调度概率,实现实时业务质量和系统整体性能之间的平衡。仿真结果表明,该方案在数据吞吐量、传输时延等方面具有更好的性能。
This paper proposed a cross-layer packet scheduling scheme based on the HSDPA system for supporting diverse QoS requirements of mixed services.During the process,classified mixed services according to service types,QoS levels and user status.Introduced service QoS and channel status parameters into computation to estimate probability,try to achieve a balance between mixed services quality and system performance.Simulation results indicate that the scheme has superior performance in the domain of transmission delay,data throughput.
出处
《计算机应用研究》
CSCD
北大核心
2011年第5期1810-1812,共3页
Application Research of Computers
基金
国家"863"计划资助项目(2009ZX03004-002-03)
关键词
实时业务
分组队列
跨层调度
业务优先级
mixed services
packet queue
cross-layers scheduling
service priority
