The Deployment of Multiple Infrastructures in Vehicular Networks
The Deployment of Multiple Infrastructures in Vehicular Networks
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DOI：
10.14257/ijfgcn.2013.6.5.04
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发表时间：
2013-10
期刊：
影响因子：
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通讯作者：
Che Nan;Shijia Liu;Shenghui Liu
中科院分区：
文献类型：
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作者：
Che Nan;Shijia Liu;Shenghui Liu
部署路边接入点（AP）或基础设施可以改善数据传输。然而，由于部署和运营成本过高，试图用AP覆盖整个道路网络中的每个点（全覆盖）的解决方案并不实用。在本文中，我们使用了一个新的基础设施，即，WiFi to Mesh（W2M），用于提高车载互联网的性能。通过分析AP和W2M在功能上的异质性，包括覆盖范围，提出了一种多种基础设施支持的车联网基础设施部署策略。特别是，我们使用了一个新的指标，称为联系机会，这样的指标是密切相关的数据服务的质量，一个移动的用户可能会经历，而驾驶通过系统。然后，我们提出了一个有效的部署方法的AP和W2M，最大限度地提高最坏情况下的接触机会，以最小的成本。找到一个经济的AP和W2M的部署，这是取决于服务质量（QoS）的问题，原来是NP难。我们的策略的效率是通过使用来自现实世界的道路网络的数据模拟证明。
Deploying roadside access points (APs) or infrastructures can improve data delivery. However, a solution that tries to cover every point in an entire road network with APs (a full coverage) is not very practical due to prohibitive deployment and operational costs. In this paper, we used a new Infrastructure, i.e., WiFi to Mesh (W2M), which used to improve the performance of vehicular internet. Through analyze the heterogeneity of function between AP and W2M, including coverage area, we propose an infrastructures deployment strategy for Vehicular Internet which is supported by a variety of infrastructures. In particular, we used a new metric, called Contact Opportunity, such a metric is closely related to the quality of data service that a mobile user might experience while driving through the system. We then present an efficient deployment method of APs and W2Ms that maximizes the worst case contact opportunity with the minimum cost. The problem of finding an economic deployment of APs and W2Ms that is depends on the quality of service (QoS) turns out to be NP-hard. The efficiency of our strategy is demonstrated via simulations using data from real-world road networks.