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用于电力系统信息综合传输的改进加权公平队列调度算法

, PP. 149-156

Keywords: 智能电网,信息综合传输,服务质量,区分服务,队列调度算法

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Abstract:

为保证电力系统信息综合传输中各种信息业务的服务质量,提出一种改进的最坏情况下公平的加权公平队列(improvedworst-casefairweightedfairqueueingplus,IWF2Q?)调度算法。该算法通过在WF2Q?算法的虚拟开始时间和虚拟完成时间计算公式中引入?虚拟延迟时间?,解决了电力系统信息综合传输中由WF2Q??算法导致的推迟传输高优先级信息业务分组的问题。以NS2为工具,建立了基于区分服务体系结构模型的IEEE14母线系统信息综合传输网络仿真模型,运用网络仿真方法定量评估了以IWF2Q??算法实现基于区分服务体系结构模型的电力系统信息综合传输时各类信息业务的实时性和公平性。仿真结果表明,IWF2Q??算法降低了高优先级信息业务分组延时,同时兼顾综合传输的各类信息业务间的公平性,证明了IWF2Q??算法的有效性和可行性。

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