A Lightweight Fluid Model for Mobile Ad hoc Distributed Systems

Bruno Chianca Ferreira, G. Dufour, Guthemberg Silvestre
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Abstract

Emerging edge applications introduced new computing time-variant topologies with mobile nodes connected via ad hoc networks. Such topologies are fundamentally different from cloud infrastructures due to the lack of hierarchy and clear network function separation. Sometimes, nodes that are sources are also destinations and routers, hence, creating dynamic flow patterns traversing the network. The latter, thus, can change the average performance of a distributed system, such as throughput and latency. This work introduces an analytical model based on fluid quantities to study data flows of distributed systems in mobile ad hoc networks. Using an approach based on a network of queues with evenly distributed bandwidth over concurrent flows, this lightweight model enables fast, coarse-grained analysis of different distributed systems configurations. They enable the analysis of different topologies, mobility and data flow models with a small footprint. The model was implemented, validated and evaluated with stress workloads to confirm its accuracy.
移动自组织分布式系统的轻量级流体模型
新兴的边缘应用引入了新的计算时变拓扑,移动节点通过自组织网络连接。由于缺乏层次结构和明确的网络功能分离,这种拓扑结构与云基础设施有着根本的不同。有时,作为源的节点同时也是目的地和路由器,从而创建遍历网络的动态流模式。因此,后者可以改变分布式系统的平均性能,例如吞吐量和延迟。本文引入了一种基于流体量的分析模型来研究移动自组织网络中分布式系统的数据流。使用基于队列网络的方法,在并发流上均匀分布带宽,这个轻量级模型支持对不同的分布式系统配置进行快速、粗粒度的分析。它们能够以较小的占用空间分析不同的拓扑、移动性和数据流模型。利用压力负载对模型进行了实施、验证和评估,以验证模型的准确性。
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