基于队列长度的上行资源调度性能分析及策略  

PERFORMANCE ANALYSIS AND STRATEGY FOR UPLINK RESOURCE SCHEDULING BASED ON QUEUE LENGTH

作　　者：姚志平[1] 张琳[1] 刘郁恒[2] 

机构地区：[1]中山大学电子与通信工程系,广东广州510275 [2]广东省电信规划设计院有限公司,广东广州510630

出　　处：《计算机应用与软件》2011年第3期50-52,56,共4页Computer Applications and Software

基　　金：国家自然科学基金;广东省联合基金项目(U0635003);广东省自然科学基金(9151027501000092);广州市科技计划项目(2008Z1-D151)

摘　　要：对无线通信网络上行队列调度进行了分析和设计。提出一种基于队列长度的上行资源调度策略,建立了数学模型,采用双随机泊松过程模型,对上行资源调度进行了理论分析,推导提出了衡量调度性能的参数:延时和带宽利用率。将该策略应用于基于IEEE 802.16d的无线网络,数值分析和仿真结果表明,所提算法能对上行资源进行优化配置,实现系统所需的QoS服务。In this paper,we analyze and design an uplink queue scheduling scheme for wireless network.We also present an uplink resource scheduling strategy based on queue length,and formulate its mathematical model which uses Markov-modulated Poisson process model.According to theoretical analysis on uplink resource scheduling,two performance indexes,delay and bandwidth utilization,are derived.We apply this strategy to IEEE 802.16d-based wireless network,both the numerical analysis and the simulation results demonstrate that the presented algorithm can optimize the allocation of uplink resources and realize the system required QoS（Quality of Service）.

关 键 词：上行调度 优化 QOS 延时 带宽利用率 

分 类 号：TP316.81[自动化与计算机技术—计算机软件与理论]