Tongxin xuebao (Jun 2013)
Study on the connectivity model of VANET based on 802.11p/WAVE and its application
Abstract
Firstly,a vehicular mobility model was proposed for the freeway traffic scenarios.Then the connectivity pa-rameters of VANET,such as the connected probability between any two cars,the diameter size of connected cluster and the number of connected cluster,were analyzed.And on the basis of these,the conclusion that the location of VANET node at one time snapshot meets the gamma distribution was drawn.Furthermore,a VANET message package format considering flooding message number was designed,in which TTL field was discussed in detail by introducing the ana-lytic expression of connectivity model.Finally,simulations also verify the conclusion.The connectivity model proposed should provide an important theoretical basis for the upper-level protocols of VANET WAVE stack.
