Load Distribution with Queuing Delay Bound over Multipath Networks: Rate Control Using Stochastic Delay Prediction
Load Distribution with Queuing Delay Bound over Multipath Networks: Rate Control Using Stochastic Delay Prediction
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DOI：
10.2514/6.2008-5456
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发表时间：
2008-06
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影响因子：
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通讯作者：
Sumet Prabhavat;Hiroki Nishiyama;Y. Nemoto;N. Kato;N. Ansari
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作者：
Sumet Prabhavat;Hiroki Nishiyama;Y. Nemoto;N. Kato;N. Ansari
通过多路径建立的网络连接变得越来越重要；高效利用多个接口提供的网络资源，例如配备高级国际移动通信（IMT-Advanced）技术或支持多路径路由的网络网关，对于下一代网络是必要的。事实上，有线和无线链路有时都会被过度配置，其中一些被利用，而另一些被保留用于备份。我们研究的关键问题之一是研究如何同时使用这些接口来传输具有短延迟的实时流量。本研究的主要目的是在源网关和目标网关之间连接的多条路径上优化分配网络流量。我们提出的模型考虑了传播延迟和带宽来确定最佳路径。如果源和目的地之间存在具有不同传播延迟的路径，则具有较大传播延迟的路径可能会被分配较低的优先级。对于输入流量，分流比被优化调整以最小化最大路径延迟。然后我们表明，延迟控制负载分配模型可以优化利用具有不同路径参数的路径，以最小化最大路径延迟。
Network connections established via multiple paths are becoming more eminent; efficient utilization of network resources provided by multiple interfaces, e.g., network gateways equipped with International Mobile Telecommunications–Advanced (IMT-Advanced) technologies or enabled with multipath routing, is necessary for next generation networks. In reality, both wired and wireless links are sometimes over-provisioned in which some are utilized while others are reserved for backup. One of the key issues in our study is to investigate how these interfaces can be used simultaneously for transmitting real time traffic with a short delay. Optimally distributing network traffic over multiple paths connected between source and destination gateways is the main purpose of this research. Our proposed model takes into account of both propagation delay and bandwidth for determining the optimal path. If there are paths with different propagation delays between a source and a destination, the path with a larger propagation delay will likely be assigned with a lower precedence. For input traffic, the splitting ratios are optimally adjusted in order to minimize the maximum path delay. We then show that the delay controlled load distribution model can optimally utilize the path with different path parameters in minimizing the maximum path delay.