Effective Transmission Coverage Area-Based Link Dynamics Characterization of VANET in Highway Scenario
Effective Transmission Coverage Area-Based Link Dynamics Characterization of VANET in Highway Scenario
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DOI：
10.1155/2015/307031
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发表时间：
2015-10
影响因子：
2.3
通讯作者：
Chunfeng Liu;O. Yang;Gen Li;Y. Shu
中科院分区：
文献类型：
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作者：
Chunfeng Liu;O. Yang;Gen Li;Y. Shu
本文以有效传输覆盖区的概念为模型，推导了链路寿命、新链路到达率、新链路到达间隔时间、链路中断间隔时间等动态统计特性的解析表达式。已经进行了大量的模拟，以验证所得出的解析表达式，通过生成的迁移率轨迹。结果表明，所提出的分析模型可以很好地描述动态统计特性。此外，给出了期望链路寿命和期望新链路到达率的数学结果，用于分析网络的连通性。结合连通性理论，得到了VANET网络连通性的上界。因此，这项工作提供了一个基本的指导方针，设计新的移动模型，新的路由协议，以及相应的性能分析在VANET。
This paper uses the concept of effective transmission coverage area as a model for the derivation of analytic expressions in order to characterize the dynamic statistics of link lifetime, new link arrival rate, new link interarrival time, link breakage interarrival time, and so forth. Extensive simulations have been undertaken to verify the derived analytical expressions via generated mobility traces. Results demonstrate that the proposed analytical model can characterize the dynamic statistics well. Furthermore, the mathematical results of expected link life and expected new link arrival rate are provided to be used in analyzing the network connectivity. Combining with queueing theory, the upper bound connectivity of a VANET is obtained. This work thus provides a fundamental guideline on designing new mobility models, new routing protocols, and the corresponding performance analysis in VANET.