首页> 外文会议>IFIP TC6 International Conference on Personal Wireless Communications(PWC 2004); 20040921-23; Delft(NL) >Quality of Service Support in Wireless Ad Hoc Networks Connected to Fixed DiffServ Domains
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Quality of Service Support in Wireless Ad Hoc Networks Connected to Fixed DiffServ Domains

机译:连接到固定DiffServ域的无线Ad Hoc网络中的服务质量支持

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This paper analyzes the provision of end-to-end Quality of Service between nodes in a mobile ad hoc network and a fixed IP network that supports Differentiated Services. The ad hoc network incorporates the Stateless Wireless Ad Hoc Networks (SWAN) model to perform admission control for real-time traffic flows. We propose a new protocol, named DS-SWAN (Differentiated Services-SWAN), where end-to-end delays and loss rates of real-time traffic are monitored continuously at the destination nodes in the fixed network and at the edge routers respectively. In this way, nodes in the ad hoc network are warned when congestion is excessive for the correct functioning of a real-time application (specifically, Variable Bit Rate Voice-over-IP), so that the nodes restrain best-effort traffic in order to favour real-time flows. The results indicate that DS-SWAN significantly improves end-to-end delays without starvation of background traffic, adapting itself to changing traffic and network conditions in a relatively small ad hoc network. Besides, we compare different notification procedures in DS-SWAN aimed to improve scalability.
机译:本文分析了移动自组织网络和支持区分服务的固定IP网络之间节点之间端到端服务质量的提供。自组织网络合并了无状态无线自组织网络(SWAN)模型,以对实时流量进行准入控制。我们提出了一种名为DS-SWAN(差分服务-SWAN)的新协议,该协议分别在固定网络中的目标节点和边缘路由器上连续监视实时流量的端到端延迟和丢失率。这样,当拥塞过多导致实时应用程序无法正常运行(特别是IP可变比特率语音)时,会警告ad hoc网络中的节点,以便按顺序约束尽力而为流量支持实时流量。结果表明,DS-SWAN可以显着改善端到端的延迟,而不会造成后台流量不足,从而使其能够适应相对较小的ad hoc网络中不断变化的流量和网络状况。此外,我们比较了DS-SWAN中旨在提高可伸缩性的不同通知程序。

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