Using Context Ontologies for Addressing and Routing in Mobile Ad Hoc Networks

R. Eigner, Christoph Mair
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引用次数: 6

Abstract

This paper presents a new way of addressing and routing for mobile ad hoc networks on the basis of contextual information such as air pressure, brightness, wind direction and strength, or GPS position. The most common use case of context-based addressing is group communication: A participant sends a message to an a priori unspecified set of recipients, but indicates the context in which the message could be useful for a potential receiver. In contrast to infrastructure networks the sender no longer designates the receiver of its message with a distinct identifier. Instead, each recipient using his local context decides by himself, whether the message is useful for him and whether it should be sent out again. The modeling of the necessary application knowledge is done as ontologies in OWL (Web Ontology Language). As an example scenario, a wind gust warning on highways using a vehicular ad hoc network (VANET) is described: the warning message should be sent to all vehicles on the same route containing the place where the wind was detected. The models are applied in a prototypical example scenario in order to show the performance of the approach through a simulation, using the JiST/SWANS simulator for mobile ad hoc networks. The results show that the number of messages that are necessary to warn all vehicles in a given environment of the wind danger can be reduced by half – as opposed to a simple flooding of the network.
在移动自组织网络中使用上下文本体进行寻址和路由
本文提出了一种基于上下文信息(如气压、亮度、风向和强度或GPS位置)的移动自组织网络寻址和路由的新方法。基于上下文的寻址最常见的用例是组通信:参与者向事先未指定的一组收件人发送消息,但指出该消息可能对潜在接收者有用的上下文。与基础设施网络相反,发送方不再用一个独特的标识符来指定其消息的接收方。相反,每个收件人根据自己的本地情况自行决定该消息是否对自己有用,以及是否应该再次发送。在OWL (Web Ontology Language)中以本体的形式对必要的应用知识进行建模。作为一个示例场景,描述了使用车辆自组织网络(VANET)在高速公路上发出阵风警告:警告信息应发送给同一路线上的所有车辆,包括检测到风的地点。为了通过JiST/SWANS移动自组织网络模拟器的仿真来展示该方法的性能,将这些模型应用于一个原型示例场景中。结果表明,在给定的环境中,警告所有车辆有关风危险的必要信息数量可以减少一半,而不是简单的网络泛滥。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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