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Sensors 2017, 17(6), 1327; doi:10.3390/s17061327

Data Acquisition Based on Stable Matching of Bipartite Graph in Cooperative Vehicle–Infrastructure Systems

College of Information Engineering, Capital Normal University, Beijing 100048, China
This article is an extended version of our paper published in Tang, X.; Hong, D.; Chen, W. Content Replication Scheme Using Stable Matching in Vehicular Networks. In Proceedings of the International Conference on Identification, Information and Knowledge in the Internet of Things, Beijing, China, 20–21 October 2016; IEEE CPS Publishing: Los Alamitos, CA, USA, 2016; pp. 1–6.
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Author to whom correspondence should be addressed.
Academic Editor: Leonhard M. Reindl
Received: 20 February 2017 / Revised: 8 May 2017 / Accepted: 19 May 2017 / Published: 8 June 2017
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Abstract

Existing studies on data acquisition in vehicular networks often take the mobile vehicular nodes as data carriers. However, their autonomous movements, limited resources and security risks impact the quality of services. In this article, we propose a data acquisition model using stable matching of bipartite graph in cooperative vehicle-infrastructure systems, namely, DAS. Contents are distributed to roadside units, while vehicular nodes support supplementary storage. The original distribution problem is formulated as a stable matching problem of bipartite graph, where the data and the storage cells compose two sides of vertices. Regarding the factors relevant with the access ratio and delay, the preference rankings for contents and roadside units are calculated, respectively. With a multi-replica preprocessing algorithm to handle the potential one-to-many mapping, the matching problem is addressed in polynomial time. In addition, vehicular nodes carry and forward assistant contents to deliver the failed packets because of bandwidth competition. Furthermore, an incentive strategy is put forward to boost the vehicle cooperation and to achieve a fair bandwidth allocation at roadside units. Experiments show that DAS achieves a high access ratio and a small storage cost with an acceptable delay. View Full-Text
Keywords: vehicular networks; data acquisition; stable matching; bipartite graph; content replication vehicular networks; data acquisition; stable matching; bipartite graph; content replication
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Tang, X.; Hong, D.; Chen, W. Data Acquisition Based on Stable Matching of Bipartite Graph in Cooperative Vehicle–Infrastructure Systems. Sensors 2017, 17, 1327.

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