文章基本信息

标题：A Semantically Enhanced Service Discovery for MANET
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作者：Unai Aguilera ; Diego López-de-Ipiña
期刊名称：Journal of Universal Computer Science
印刷版ISSN：0948-6968
出版年度：2016
卷号：22
期号：12
页码：896-920
DOI：10.3217/jucs-022-12-0896
出版社：Graz University of Technology and Know-Center
摘要：Service discovery is a fundamental aspect of many services oriented applications; however, it cannot be directly applied to mobile ad hoc networks (MANET) due to their dynamic nature. The lack of central manager nodes results in the need of specific discovery solutions for this kind of networks. In this paper, we present a solution for the discovery of services in MANETs that is based on the classification of service's parameters according to a shared domain ontology. Our proposed discovery protocol encompasses two main processes: dissemination and search. The search process defines a pruning mechanism that enables to detect if search messages must be propagated or not, reducing the number of messages communicated through the network. The dissemination and search processes are integrated within the route management mechanism that enables to reduce the number of propagated messages.

We have implemented and tested our discovery solution using the ns-2 network simulator. Experiments have been performed using rigorously constructed scenarios for testing the characteristics of the proposed solution. The obtained results show how the inclusion of the ontology not only increments the expressiveness of the search and discovery process, but also enables to reduce the number of propagated messages due to the grouping and pruning processes.
关键词：manet; protocol; semantic; service discovery